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{{magic
 
{{magic
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|image= Feruchemical_table.jpg
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|image-artist= [[Isaac Stewart]]
 
|system=Feruchemy
 
|system=Feruchemy
 
|world=Scadrial
 
|world=Scadrial
Línea 6: Línea 8:
 
|prereq=Genetic ability
 
|prereq=Genetic ability
 
|type=End-Neutral
 
|type=End-Neutral
|books=[[Mistborn (series)|Mistborn]]
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|books=[[Mistborn (series)]]
 
}}
 
}}
 
'''Feruchemy''' is one of the three prime manifestations of [[Investiture]] on [[Scadrial]]. The natives of that world consider it one of the three [[Metallic Arts]].
 
'''Feruchemy''' is one of the three prime manifestations of [[Investiture]] on [[Scadrial]]. The natives of that world consider it one of the three [[Metallic Arts]].
   
 
== Lore & Background ==
 
== Lore & Background ==
  +
Feruchemy came into existence contemporaneously with the other Metallic Arts, [[Allomancy]] and [[Hemalurgy]], as a result of the interactions between the [[Shard]]s, [[Preservation]] and [[Ruin]], and the planet [[Scadrial]] itself.{{wob ref|5269|''Hero of Ages'' Q&A|date=2008-10-15}} Unlike Allomancy and Hemalurgy however, which are each closely attuned with one of the Shards, Feruchemy is equally attuned to both and represents the balance between them. Feruchemy was also the only art in widespread use prior to the [[Ascension of the Lord Ruler]].{{epigraph ref|mb3|34}} The ability to use Feruchemy emerged among the [[Terris]] people but due to their insular nature and reluctance to interbreed never spread to the general population of [[Classical Scadrial]].{{wob ref|5514|Ancient 17S Q&A|date=2010-05-01}} During this time there was a holy order of Feruchemist scholars known as the [[Worldbringers]], who served as teachers bearers of knowledge throughout the world.{{book ref|mb2|30}} Not every Feruchemist was a member however, with many having much more mundane vocations, such as being herders or mountain guides.{{book ref|mb1|22}}
'''Feruchemy''' is the only one of the Metallic Arts that was in widespread use before the [[Ascension of the Lord Ruler]]. It is a genetic ability found in the ancient people of [[Terris]], but as during the time of the [[Final Empire]] most Terrismen were eunuchs because of the [[Lord Ruler]]'s breeding programs, Feruchemists became exceedingly rare.
 
   
  +
During the Ascension of the Lord Ruler every living Feruchemist (although not those with recessive Feruchemical genes), with a few notable exceptions, were transformed into [[mistwraith]]s by [[Rashek]], a Terris herdsman and Feruchemist.{{epigraph ref|mb3|68}} Rashek, having discovered Allomancy and transformed himself into a Mistborn and claiming to be the [[Hero of Ages]], declared himself a god and launched a campaign to consolidate the world under his control. As part of this Rashek instituted policies to heavily restrict the Terris people which eventually grew into a breeding program designed to exterminate all genetic traces of Feruchemy. He did this specifically he feared the prospect of the genes for Feruchemy intermixing with those of Allomancy and potentially creating a rival of comparable power to himself.{{book ref|mb1|epilogue}} Despite this the Terris resistance worked tirelessly to thwart the efforts of Rashek, then known as the Lord Ruler, in a variety of ways. The two main avenues of this were tricking the breeders into including people with hidden Feruchemical talents, in order to ensure their continuation in the population, and the formation of the [[Keeper]]s an order of Feruchemists dedicated to finding and securing knowledge from before the Lord Ruler's rise to power.{{book ref|mb1|22}}{{book ref|mb2|30}}
A '''Feruchemist''' can use metals to store particular attributes in metal, somewhat like a battery. The larger the piece of metal is (and the closer it is to Allomantic purity), the more of that particular attribute can be stored. A Feruchemist can draw upon their metals in increased, compounded qualities, but the faster they do this, the lesser returns they receive. Only the Feruchemist who stored those attributes can draw upon them later, however.
 
   
  +
Following the death of the Lord Ruler and the [[Collapse]] of the [[Final Empire]], the [[Synod]], the leaders of the Keepers and the de facto ruling council of Terris emerged from secrecy and the Keepers were dispatched across the Empire to teach the people all that the knowledge they had preserved.{{book ref|mb2|7}} Unfortunately this "victory" was relatively short-lived as about a year later the [[Steel Inquisitor]]s, under the influence of Ruin, attacked and slaughtered the Synod and all but [[Sazed|one of the Keepers]], creating [[Hemalurgic]] spikes from them in the process to increase their own powers.{{book ref|mb2|56}}
Like Mistborn and Mistings, there are Feruchemists that can utilize one or all of the metals. The former are known as '''"Ferrings"'''.{{17s ref|topic|712|Q&A with Peter Orullian|date=8/20/11}} Ferrings are a result of the genes for Feruchemy mixing with those for Allomancy following the [[Final Ascension]].{{qa ref|632|1}}
 
   
  +
After the [[Catacendre]] the surviving Terris began to interbreed with the general population. As a result of the genes for Feruchemy mixing with those for Allomancy, the genes for Feruchemy began to break apart. Whereas before people had either the ability to use all of the Feruchemical abilities or none of them, Ferrings, who could use only one, began to appear.{{wob ref|4696|''Alloy of Law'' Seattle signing|date=2011-11-11}} Conversely, Feruchemists with all of the Feruchemichal abilities, now referred to as "Full Feruchemists", have disappeared, however the Terris community is working on creating one through careful breeding of Feruchemical lineages.{{book ref|mb6|3}} This period also saw an explosion of Feruchemical and Allomantic research, with a number new metals, and their Feruchemical attributes, were discovered, with the Spiritual abilities being of particular interest to the the Terris community.{{book ref|mb4|part=ars}}
A metalmind which contains a Feruchemical storage will retain those stores when it is melted down, though the power will only be lost if the metalmind is alloyed with another metal. If a metalmind is split into multiple pieces, the stored Investiture splits along with it.{{17s ref|post|58507|text=Yes, only by mixing it with other metals would the power be completely lost.|date=23 May, 2013}}
 
== Terminology ==
 
   
  +
== Mechanics ==
A [[metalmind]] is what Feruchemists' call a piece of metal they can store human attributes in. Each metalmind is named after the type of metal it is made of, such as ironmind, pewtermind, coppermind, or goldmind.
 
  +
Feruchemy is an end-neutral manifestation of Investiture that allows the user to convert certain attributes into Investiture and store it in metal, that they are in physical contact with, which can be retrieved at a later point in time. As an end-neutral art, Investiture is not gained from an outside source (as it is in end-postive arts) and Investiture is not permanently lost (as it is in end-negative arts).{{book ref|mb4|part=ars}} Ordinarily, when a Feruchemist is tapping an attribute at the same rate it was stored, they are able to get out exactly what they put in, for example if they store 50% of their strength for one hour they can tap that and be at 150% of their strength for one hour. However, if the Feruchemist taps at a greater rate, then some of attribute is lost, to facilitate the compression of the Investiture. This means that a Feruchemist who stores 50% of their strength for one hour could only be at 200% for about 25 minutes, rather than a full half hour. The more a Feruchemist compresses the attribute, the more is lost.{{wob ref|6126|''Hero of Ages'' Q&A|date=2008-10-15}}
   
  +
The type of metal determines what attribute can be stored within it. Pieces of metal that have been charged by Feruchemists are referred to as '''metalminds''' in general, or more specifically as the type of metal with an added "-mind" suffix. The act of charging, or Investing, a metalmind is referred to as '''storing''' whereas the act of retrieving the stored attribute is referred to as '''tapping'''.{{book ref|mb4|part=ars}}
When a Feruchemist places something in the metal, it is known as '''storing'''. A Feruchemist's power comes from his or her own body, so if a Feruchemist is storing strength, that Feruchemist must remain weak during that time. When a Feruchemist draws upon his or her metalminds, it is called '''tapping'''.
 
   
  +
While in general a larger piece of metal will be able to store more of an attribute, the scaling is not consistent. Rather there are certain thresholds of size where the amount of attribute that can be stored increases.{{wob ref|234|JordanCon 2016|date=2016-04-23}} If a metalmind is broken the stored attribute will be split among the pieces.{{wob ref|4087|/r/fantasy AMA 2013|date=2013-04-15}} It is possible to store and tap a molten piece of metal (setting aside the conventional hazards of touching molten metal) which would have some effect on the stored Investiture.{{wob ref|6217|''Shadows of Self'' release party|date=2015-10-05}} If the molten metal is mixed to form an alloy however the Investiture will become inaccessible, even if the alloy in question is Feruchemically viable. In the event the alloy is Feruchemically viable a Feruchemist will not be able to store as much of an attribute as they could in an identically-sized metalmind, as while the original Investiture is inaccessible it does still take up "space" in the metalmind.{{wob ref|3969|General Reddit 2016|date=2016-11-11}}
{{/table}}
 
   
  +
Ordinarily a Feruchemist's stores are keyed to their Identity and are inaccessible to another Feruchemist. However another Feruchemist could sense the presence of the original Feruchemist's stores.{{book ref|mb1|epilogue}}
== Feruchemical Properties of Metals ==
 
   
  +
=== Feruchemical Properties of Metals ===
=== Physical ===
 
   
  +
{{/table}}
====[[Iron]]====
 
Iron stores physical weight. Iron is used to store physical mass, or more accurately, density. This is accomplished by changing the Feruchemist's mass, not by changing the effect of gravity on the Feruchemist.{{qa ref|689|3}} The greater density has no effect on the Feruchemist's vulnerability to penetration.{{annotation ref|aol|chapter=6}} Tapping iron grants the Feruchemist the strength required to remain standing. Similarly, when a Feruchemist stores their weight, their muscles are weakened slightly.
 
   
  +
=== Special Metalminds ===
An iron [[Ferring]] is known as a '''Skimmer'''.
 
   
====[[Steel]]====
+
====Unkeyed Metalminds====
  +
An '''unkeyed metalmind''' is a special kind of metalmind that anyone with the relevant Feruchemical ability can access. They are created through manipulation of Identity, such as through aluminum Feruchemy. Whereas conventional metalminds are keyed to the Identity of the Feruchemist who created it, unkeyed metalminds are not attuned to any specific individual's Identity.{{book ref|mb6|3}} Due to the nature of intention in the cosmere, an individual must be aware of an unkeyed metalmind's nature before they can use it.{{book ref|mb6|17}}
Steel stores physical speed. Tapping steel will allow the Feruchemist to move at amazing rates, while storing it will cause the Feruchemist to move more slowly. Storing speed has negligible if any effect on the Feruchemist's ability to speak.{{book ref|mb2|50}} It seems that steel Ferrings are able to make at least basic decisions while using speed.
 
   
  +
====Unsealed Metalminds====
A steel [[Ferring]] is known as a '''Steelrunner'''.
 
  +
An '''unsealed metalmind''' is a special kind of metalmind that anyone can access.{{wob ref|2112|General Signed Books 2016|date=2016-01-26}}{{ref|group=fn|text=The [[Mistborn Adventure Game]] refers to these as "universal metalminds". Due to the potentially confusing nature of that term, and the fact that "unsealed metalmind" is a term from Brandon himself, the Coppermind uses the latter.}} The exact method of their creation is unknown but involve nicrosil Feruchemy and something referred to as an [[Excisor]]. Unsealed metalminds are formed of nicrosil and one, or more, metals. The nicrosil grants the user the ability to use other metal, or metals. {{book ref|mb6|20}} Unsealed metalminds see widespread use among the [[Southern Peoples of Scadrial]], but perhaps the most famous example are the fabled [[Bands of Mourning]].{{book ref|mb6|3}}{{book ref|mb6|21}}
   
  +
=== Interactions with Other Investitures ===
====[[Tin]]====
 
Tin stores senses. Tapping a tinmind gives the Feruchemist enhanced sensory perception. However, this will not allow the Feruchemist to see in the dark; rather, it enhances what eyesight/senses are already there. In addition, tapping tin will not make the mists more translucent, as an Allomancer burning tin would. Tapping sight causes the edge of the Feruchemist's vision to blur, and sacrifices immediate field of vision in favor of a more distant, binocular view. Tapping too much sight can induce nausea.{{book ref|mb2|12}} Multiple tin minds are required to store multiple senses.
 
   
  +
====Allomancy====
A tin [[Ferring]] is known as a '''Windwhisper'''.
 
  +
Perhaps the most dramatic interaction between Feruchemy and [[Allomancy]] is [[Compounding]], by which a Feruchemist can Allomantically burn a metalmind and dramatically increase the amount of the attribute stored. Effectively this uses the end-positive nature of Allomancy to use Preservation's power to fuel the end-neutral art of Feruchemy.{{book ref|mb1|epilogue}}
   
  +
Following the Catacendre, and the emergence of Ferrings, it is possible for individuals to be born with a single Allomantic ability and a single Feruchemical ability. These individuals are known as [[Twinborn]]. When an individual's abilities share a metal they are capable of Compounding. Even when they do not, however, the interaction between the two abilities creates an effect, known as a [[Resonance]].{{book ref|mb5|part=ars}}
====[[Pewter]]====
 
Pewter stores physical strength. Tapping a pewtermind will cause a Feruchemist's muscles to grow far larger than they would be normally, while storing strength causes the Feruchemist to become weak and frail. It's possible for the Feruchemist to tap so much strength that their girth makes it difficult for them to maneuver properly. {{book ref|mb2|53}}
 
   
  +
As with any Invested object, a metalmind resists Allomantic Ironpulls and Steelpushes. This resistance ranges based on the level of Investiture stored in the metalmind. A metalmind with only a small amount of stored attribute might resist only slightly, whereas a fully charged metalmind will be effectively immune.{{book ref|mb5|7}}
A pewter [[Ferring]] is known as a '''Brute'''.
 
   
  +
It is theoretically possible to detect the use of Feruchemy using bronze Allomancy, as it can detect any kinetic Investiture, however it requires a "tweak" that is not currently known.{{wob ref|6113|''Shadows of Self'' release party|date=2015-10-05}} Part of the issue is that Feruchemy is a more internal manifestation of Investiture than Allomancy.{{wob ref|3417|/r/books AMA|date=2015-05-25}}
=== Cognitive ===
 
   
====[[Zinc]]====
+
====Hemalurgy====
  +
A [[Hemalurgic]] spike can be used as a Feruchemical metalmind, much like how multiple Feruchemists can store in the same piece of metal, as the charges are stored in different parts of the metal.{{wob ref|4617|Tor.com Q&A|date=2011-01-10}}{{wob ref|1143|17th Shard Forum Q&A|date=2012-09-26}}
Zinc stores mental speed. Tapping a zincmind will give the Feruchemist the ability to think much faster than a normal person, while the thoughts of a Feruchemist storing this quality will be thick and sluggish. Storing does not affect the Feruchemist's ability to process physical information, such as being able to hear when they are spoken to. {{book ref|mb2|50}}
 
   
  +
An individual who has Feruchemy as a result of a Hemalurgic spike can access the metalminds of the Feruchemist who was used to create the spike, as the spike contains enough of the original Feruchemist's Identity. If that spike is split and implanted into to two different people they would each be able to access the original Feruchemist's metalminds but they would not be able to share metalminds as their own Identity would interfere.{{wob ref|872|Worldbuilders AMA 2015|date=2015-12-7}}
A zinc [[Ferring]] is known as a '''Sparker'''.
 
   
  +
It is possible to use gold Feruchemy in order to heal the damage caused by Hemalurgy, effectively replacing the piece of the [[Spiritweb]] that was stolen.{{wob ref|983|Goodreads Q&A|date=2014-08-13}}
====[[Brass]]====
 
Brass stores warmth. Tapping brass will make the Feruchemist warmer. While filling a brassmind the Ferring is actively cooled.
 
   
  +
====Nightblood====
A brass [[Ferring]] is known as a '''Firesoul'''.
 
  +
Tapping a metalmind is enough to fuel [[Nightblood]] while it is unsheathed.{{wob ref|8683|''Oathbringer'' London signing|date=2017-11-28}}
   
====[[Copper]]====
+
====Shardblades====
  +
A fully charged metalmind would be enough to block, or at least resist, a blow from a [[Shardblade]].{{wob ref|3670|/r/books AMA|date=2015-09-03}}
Copper stores memories. When storing memories, the Feruchemist loses all recollection of that information he or she stored. Typically, Keepers (modern-day Feruchemists) would have many copperminds, keeping specific index copperminds to locate particular pieces of information. Keepers undergo extensive training on their memorization skills to make the most of this ability.{{annotation ref|mb3|chapter=49}}
 
   
  +
It is possible to use gold Feruchemy in order to heal the damage caused by a Shardblade, restoring function to a "severed" limb.{{wob ref|4111|/r/fantasy AMA 2013|date=2013-04-18}}
A copper [[Ferring]] is known as an '''Archivist'''.
 
   
====[[Bronze]]====
+
==Development==
  +
The earliest inspiration for Feruchemy dates to when Brandon was a teenager and had insomnia. He would lie awake at night and be really tired during the day, so he wished that he could store up his sleepiness so that he could be sleepy when he wanted to be sleepy.{{wob ref|8974|''Calamity'' Austin signing|date=2016-02-25}}
Bronze stores wakefulness. Tapping bronze will enable the Feruchemist to stay awake longer, while storing makes them feel drowsy.{{book ref|mb4|part=ars}} It is the only type of metalmind a Feruchemist can store into while sleeping.{{book ref|mb2|50}}
 
   
  +
An early version of Feruchemy, then referred to as "Hemalurgy", appeared in [[Final Empire Prime|''Final Empire'' Prime]]. During the development of ''[[Mistborn: The Final Empire]]'', Brandon realized that Feruchemy would work very well as the magic system for Sazed and the Keepers so he imported it into that novel and added the restriction of storing attributes in metal.{{annotation ref|mb1|chapter=22-1}}
A bronze [[Ferring]] is known as a '''Sentry'''.
 
   
  +
The attributes stored in brass (warmth) and electrum (determination) were originally supposed to be reversed. By the time Brandon realized his mistake, brass storing warmth had already been canonized in released books. Brandon decided not to retcon this, citing the fact that Feruchemy operates on different principles than Allomancy.{{wob ref|5508|''Alloy of Law'' 17th Shard Q&A|date=2011-11-05}} Brandon also notes that the organization of the metals in the Feruchemical chart is of human invention.{{wob ref|1090|17th Shard Forum Q&A|date=2012-09-26}}
===Hybrid===
 
 
Note that the Table of Feruchemical Metals, an in-world document, lists this quadrant as "Hybrid," but it is stated that, essentially, there are two Physical quadrants.{{qa ref|689|26}}
 
 
====[[Cadmium]]====
 
A cadmium metalmind can store breath. During active storage they must hyperventilate in order for their bodies to get enough air. The breath can be retrieved at a later time, eliminating or reducing the need to breathe using the lungs while tapping the metalmind. They can also highly oxygenate their blood.
 
 
A cadmium [[Ferring]] is known as a '''Gasper'''.
 
 
====[[Bendalloy]]====
 
Bendalloy can store nutrition and calories. Users can eat large amounts of food during active storage without feeling full or gaining weight, and then can go without the need to eat while tapping their metalmind. A separate bendalloy metalmind is used for fluids intake.
 
 
A bendalloy [[Ferring]] is known as a '''Subsumer'''.
 
 
====[[Gold]]====
 
Gold stores health. Tapping a goldmind will rapidly heal wounds while storing a goldmind makes the feruchemist ill and sickly. The expense of gold, combined with the difficulty of storing health, means that most Feruchemists do not have massive goldminds to tap from.
 
 
A gold [[Ferring]] is known as a '''Bloodmaker'''.
 
 
====[[Electrum]]====
 
Electrum stores determination. Storing determination makes people enter a depressed state during active storage, and while tapping it later can make them enter a determined, manic state.
 
 
An electrum [[Ferring]] is known as a '''Pinnacle'''.
 
 
=== Spiritual ===
 
 
====[[Chromium]]====
 
Chromium metalminds allows the user to store fortune. Making themselves unlucky during active storage, and tapping it at later times to increase their luck.
 
 
A chromium [[Ferring]] is known as a '''Spinner'''.
 
 
====[[Nicrosil]]====
 
Nicrosil allows one to store [[Investiture]]. This is a power that very few know anything about, and the people of Terris do not truly know what they are doing when they use this power. In Bands of Mourning, this power is used to grant the power of Feruchemy or Allomancy to people who were not born with it.
 
 
A nicrosil [[Ferring]] is known as a '''Soulbearer'''.
 
 
====[[Aluminum]]====
 
Aluminum stores a spiritual sense of identity. This is an art rarely spoken of outside of Terris communities, and even among them it is not yet well understood. In Bands of Mourning, the sense of identity is something relating to Feruchemy mainly. The identity of a metalmind is what makes it so that one Feruchemist cannot use another's metalmind. If, however, a Feruchemist creates a metalmind while filling an aluminummind, the metalmind will be identity-less, allowing for any Ferring of the same metal to use it. This is how Wayne is able to use the goldmind he acquired in New Seran, even though he did not fill it himself.
 
 
An aluminum [[Ferring]] is known as a '''Trueself'''.
 
 
====[[Duralumin]]====
 
Duralumin stores spiritual connection. Reducing other people's awareness and friendship with them during active storage. Tapping it can help speedily forming trust relationships with others. While tapping a duraluminmind, the user also becomes imbued with the culture of the area they are currently in. In Bands of Mourning this is used for the tribal people of the south to communicate with the protagonists from Elendel.
 
 
A duralumin [[Ferring]] is known as a '''Connector'''.
 
 
=== God Metals ===
 
 
====[[Atium]]====
 
Atium stores age, or more specifically, youth. Storing age is usually a fairly useless endeavor: in order to be young for a time, a Feruchemist needs to stay older for a time as they fill their metalminds. It can, however, be useful for disguising a Feruchemist's identity.
 
 
Of particular interest however, is that--since Compounding provides a greater burst of the attribute store than was initially stored in the metalmind--it is possible for a person capable of both Allomancy and Feruchemy, to "gain" more youth than they store. Essentially, they become effectively immortal, able to repetitively retrieve youth. The disadvantage of this is of course, the fact that the since atium is burned up in the process, a permanent supply of the metal is necessary. Also, while able to extend their life greatly, someone Compounding atium is not ''truly'' immortal; over time, the amount of youth that they would need to consume (and the amount of atium necessary to allow them to do so) would increase beyond their ability to generate and store it, besides outstripping their physical ability to ingest and burn it.{{17s ref|post|30533|Compounding and Allomancy|date=17 March 2012}}
 
 
This, in addition to the fact that atium Twinborns (or Allomancer-Feruchemists) are almost non-existent, makes the practice incredibly rare.
 
 
So far it has only been used by [[Lord Ruler|The Lord Ruler]] and [[Marsh|Ironeyes]], although atium Twinborn (if they exist) and a number of the [[Steel Inquisitors]] under [[Ruin]]'s control might have been capable of duplicating the feat.
 
 
The name for an atium [[Ferring]] is, as of yet, unknown, due to the fact none have been discovered to the knowledge of the world at large.
 
 
====[[Lerasium]]====
 
The Feruchemical use of lerasium is yet unknown.
 
   
 
== Notes ==
 
== Notes ==
  +
;Footnotes
<references>
 
  +
<references group=fn />
 
  +
;References
{{qa ref|632|1| Were Ferrings always part of the system and we just didn't meet them in Mistborn?|date=Nov 11th, 2011}}
 
  +
<references/>
{{qa ref|689|3|text=Does iron store mass or weight?|date=17 March 2012}}
 
  +
{{complete|--[[User:WeiryWriter|WeiryWriter]] ([[User talk:WeiryWriter|talk]]) 09:12, 9 March 2018 (MST)}}
{{qa ref|689|26|Are the usual quadrants (Physical, Mental, Temporal, Enhancement) preserved in Feruchemy and Hemalurgy?|date=Nov 8th, 2011}}
 
 
</references>
 
{{partial}}
 
 
{{Mistborn|metals}}
 
{{Mistborn|metals}}
 
[[category: Feruchemy| ]]
 
[[category: Feruchemy| ]]

Revisión del 16:13 9 mar 2018

Feruquimia
Feruchemical table.jpg
Relacionado con Preservation, Ruin
Tipo End-Neutral
Mundo de origen Scadrial

Feruchemy is one of the three prime manifestations of Investiture on Scadrial. The natives of that world consider it one of the three Metallic Arts.

Lore & Background

Feruchemy came into existence contemporaneously with the other Metallic Arts, Allomancy and Hemalurgy, as a result of the interactions between the Shards, Preservation and Ruin, and the planet Scadrial itself.[1] Unlike Allomancy and Hemalurgy however, which are each closely attuned with one of the Shards, Feruchemy is equally attuned to both and represents the balance between them. Feruchemy was also the only art in widespread use prior to the Ascension of the Lord Ruler.[2] The ability to use Feruchemy emerged among the Terris people but due to their insular nature and reluctance to interbreed never spread to the general population of Classical Scadrial.[3] During this time there was a holy order of Feruchemist scholars known as the Worldbringers, who served as teachers bearers of knowledge throughout the world.[4] Not every Feruchemist was a member however, with many having much more mundane vocations, such as being herders or mountain guides.[5]

During the Ascension of the Lord Ruler every living Feruchemist (although not those with recessive Feruchemical genes), with a few notable exceptions, were transformed into mistwraiths by Rashek, a Terris herdsman and Feruchemist.[6] Rashek, having discovered Allomancy and transformed himself into a Mistborn and claiming to be the Hero of Ages, declared himself a god and launched a campaign to consolidate the world under his control. As part of this Rashek instituted policies to heavily restrict the Terris people which eventually grew into a breeding program designed to exterminate all genetic traces of Feruchemy. He did this specifically he feared the prospect of the genes for Feruchemy intermixing with those of Allomancy and potentially creating a rival of comparable power to himself.[7] Despite this the Terris resistance worked tirelessly to thwart the efforts of Rashek, then known as the Lord Ruler, in a variety of ways. The two main avenues of this were tricking the breeders into including people with hidden Feruchemical talents, in order to ensure their continuation in the population, and the formation of the Keepers an order of Feruchemists dedicated to finding and securing knowledge from before the Lord Ruler's rise to power.[5][4]

Following the death of the Lord Ruler and the Collapse of the Final Empire, the Synod, the leaders of the Keepers and the de facto ruling council of Terris emerged from secrecy and the Keepers were dispatched across the Empire to teach the people all that the knowledge they had preserved.[8] Unfortunately this "victory" was relatively short-lived as about a year later the Steel Inquisitors, under the influence of Ruin, attacked and slaughtered the Synod and all but one of the Keepers, creating Hemalurgic spikes from them in the process to increase their own powers.[9]

After the Catacendre the surviving Terris began to interbreed with the general population. As a result of the genes for Feruchemy mixing with those for Allomancy, the genes for Feruchemy began to break apart. Whereas before people had either the ability to use all of the Feruchemical abilities or none of them, Ferrings, who could use only one, began to appear.[10] Conversely, Feruchemists with all of the Feruchemichal abilities, now referred to as "Full Feruchemists", have disappeared, however the Terris community is working on creating one through careful breeding of Feruchemical lineages.[11] This period also saw an explosion of Feruchemical and Allomantic research, with a number new metals, and their Feruchemical attributes, were discovered, with the Spiritual abilities being of particular interest to the the Terris community.[12]

Mechanics

Feruchemy is an end-neutral manifestation of Investiture that allows the user to convert certain attributes into Investiture and store it in metal, that they are in physical contact with, which can be retrieved at a later point in time. As an end-neutral art, Investiture is not gained from an outside source (as it is in end-postive arts) and Investiture is not permanently lost (as it is in end-negative arts).[12] Ordinarily, when a Feruchemist is tapping an attribute at the same rate it was stored, they are able to get out exactly what they put in, for example if they store 50% of their strength for one hour they can tap that and be at 150% of their strength for one hour. However, if the Feruchemist taps at a greater rate, then some of attribute is lost, to facilitate the compression of the Investiture. This means that a Feruchemist who stores 50% of their strength for one hour could only be at 200% for about 25 minutes, rather than a full half hour. The more a Feruchemist compresses the attribute, the more is lost.[13]

The type of metal determines what attribute can be stored within it. Pieces of metal that have been charged by Feruchemists are referred to as metalminds in general, or more specifically as the type of metal with an added "-mind" suffix. The act of charging, or Investing, a metalmind is referred to as storing whereas the act of retrieving the stored attribute is referred to as tapping.[12]

While in general a larger piece of metal will be able to store more of an attribute, the scaling is not consistent. Rather there are certain thresholds of size where the amount of attribute that can be stored increases.[14] If a metalmind is broken the stored attribute will be split among the pieces.[15] It is possible to store and tap a molten piece of metal (setting aside the conventional hazards of touching molten metal) which would have some effect on the stored Investiture.[16] If the molten metal is mixed to form an alloy however the Investiture will become inaccessible, even if the alloy in question is Feruchemically viable. In the event the alloy is Feruchemically viable a Feruchemist will not be able to store as much of an attribute as they could in an identically-sized metalmind, as while the original Investiture is inaccessible it does still take up "space" in the metalmind.[17]

Ordinarily a Feruchemist's stores are keyed to their Identity and are inaccessible to another Feruchemist. However another Feruchemist could sense the presence of the original Feruchemist's stores.[7]

Feruchemical Properties of Metals

Feruquimia/table

Special Metalminds

Unkeyed Metalminds

An unkeyed metalmind is a special kind of metalmind that anyone with the relevant Feruchemical ability can access. They are created through manipulation of Identity, such as through aluminum Feruchemy. Whereas conventional metalminds are keyed to the Identity of the Feruchemist who created it, unkeyed metalminds are not attuned to any specific individual's Identity.[11] Due to the nature of intention in the cosmere, an individual must be aware of an unkeyed metalmind's nature before they can use it.[18]

Unsealed Metalminds

An unsealed metalmind is a special kind of metalmind that anyone can access.[19][fn 1] The exact method of their creation is unknown but involve nicrosil Feruchemy and something referred to as an Excisor. Unsealed metalminds are formed of nicrosil and one, or more, metals. The nicrosil grants the user the ability to use other metal, or metals. [20] Unsealed metalminds see widespread use among the Southern Peoples of Scadrial, but perhaps the most famous example are the fabled Bands of Mourning.[11][21]

Interactions with Other Investitures

Allomancy

Perhaps the most dramatic interaction between Feruchemy and Allomancy is Compounding, by which a Feruchemist can Allomantically burn a metalmind and dramatically increase the amount of the attribute stored. Effectively this uses the end-positive nature of Allomancy to use Preservation's power to fuel the end-neutral art of Feruchemy.[7]

Following the Catacendre, and the emergence of Ferrings, it is possible for individuals to be born with a single Allomantic ability and a single Feruchemical ability. These individuals are known as Twinborn. When an individual's abilities share a metal they are capable of Compounding. Even when they do not, however, the interaction between the two abilities creates an effect, known as a Resonance.[22]

As with any Invested object, a metalmind resists Allomantic Ironpulls and Steelpushes. This resistance ranges based on the level of Investiture stored in the metalmind. A metalmind with only a small amount of stored attribute might resist only slightly, whereas a fully charged metalmind will be effectively immune.[23]

It is theoretically possible to detect the use of Feruchemy using bronze Allomancy, as it can detect any kinetic Investiture, however it requires a "tweak" that is not currently known.[24] Part of the issue is that Feruchemy is a more internal manifestation of Investiture than Allomancy.[25]

Hemalurgy

A Hemalurgic spike can be used as a Feruchemical metalmind, much like how multiple Feruchemists can store in the same piece of metal, as the charges are stored in different parts of the metal.[26][27]

An individual who has Feruchemy as a result of a Hemalurgic spike can access the metalminds of the Feruchemist who was used to create the spike, as the spike contains enough of the original Feruchemist's Identity. If that spike is split and implanted into to two different people they would each be able to access the original Feruchemist's metalminds but they would not be able to share metalminds as their own Identity would interfere.[28]

It is possible to use gold Feruchemy in order to heal the damage caused by Hemalurgy, effectively replacing the piece of the Spiritweb that was stolen.[29]

Nightblood

Tapping a metalmind is enough to fuel Nightblood while it is unsheathed.[30]

Shardblades

A fully charged metalmind would be enough to block, or at least resist, a blow from a Shardblade.[31]

It is possible to use gold Feruchemy in order to heal the damage caused by a Shardblade, restoring function to a "severed" limb.[32]

Development

The earliest inspiration for Feruchemy dates to when Brandon was a teenager and had insomnia. He would lie awake at night and be really tired during the day, so he wished that he could store up his sleepiness so that he could be sleepy when he wanted to be sleepy.[33]

An early version of Feruchemy, then referred to as "Hemalurgy", appeared in Final Empire Prime. During the development of Mistborn: The Final Empire, Brandon realized that Feruchemy would work very well as the magic system for Sazed and the Keepers so he imported it into that novel and added the restriction of storing attributes in metal.Plantilla:Annotation ref

The attributes stored in brass (warmth) and electrum (determination) were originally supposed to be reversed. By the time Brandon realized his mistake, brass storing warmth had already been canonized in released books. Brandon decided not to retcon this, citing the fact that Feruchemy operates on different principles than Allomancy.[34] Brandon also notes that the organization of the metals in the Feruchemical chart is of human invention.[35]

Notes

Footnotes
  1. The Mistborn Adventure Game refers to these as "universal metalminds". Due to the potentially confusing nature of that term, and the fact that "unsealed metalmind" is a term from Brandon himself, the Coppermind uses the latter.
References
  1. Hero of Ages Q&A - Time Waster's Guide
    Arcanum - 2008-10-15#
  2. El Héroe de las Eras capítulo 34 Epígrafe#
  3. Ancient 17S Q&A
    Arcanum - 2010-05-01#
  4. a b El Pozo de la Ascensión (libro) capítulo 30#
  5. a b El Imperio Final (libro) capítulo 22#
  6. El Héroe de las Eras capítulo 68 Epígrafe#
  7. a b c El Imperio Final (libro) epílogo#
  8. El Pozo de la Ascensión (libro) capítulo 7#
  9. El Pozo de la Ascensión (libro) capítulo 56#
  10. Alloy of Law Seattle Signing
    Arcanum - 2011-11-11#
  11. a b c Brazales de Duelo (libro) capítulo 3#
  12. a b c Aleación de ley Ars Arcanum#
  13. Hero of Ages Q&A - Time Waster's Guide
    Arcanum - 2008-10-15#
  14. JordanCon 2016
    Arcanum - 2016-04-23#
  15. /r/fantasy AMA 2013
    Arcanum - 2013-04-15#
  16. Shadows of Self release party
    Arcanum - 2015-10-05#
  17. General Reddit 2016
    Arcanum - 2016-11-11#
  18. Brazales de Duelo (libro) capítulo 17#
  19. General Signed Books 2016
    Arcanum - 2016-01-26#
  20. Brazales de Duelo (libro) capítulo 20#
  21. Brazales de Duelo (libro) capítulo 21#
  22. Sombras de identidad Ars Arcanum#
  23. Sombras de identidad capítulo 7#
  24. Shadows of Self release party
    Arcanum - 2015-10-05#
  25. /r/books AMA 2015
    Arcanum - 2015-05-25#
  26. Tor.com Q&A with Brandon Sanderson
    Arcanum - 2011-01-10#
  27. 17th Shard Forum Q&A
    Arcanum - 2012-09-26#
  28. Worldbuilders AMA
    Arcanum - 2015-12-07#
  29. Goodreads: Ask the Author Q&A
    Arcanum - 2014-08-13#
  30. Oathbringer London signing
    Arcanum - 2017-11-28#
  31. /r/books AMA 2015
    Arcanum - 2015-09-03#
  32. /r/fantasy AMA 2013
    Arcanum - 2013-04-18#
  33. Calamity Austin signing
    Arcanum - 2016-02-25#
  34. Alloy of Law 17th Shard Q&A
    Arcanum - 2011-11-05#
  35. 17th Shard Forum Q&A
    Arcanum - 2012-09-26#
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