Eibon (エイボン, Eibon) is one of the Great Old Ones who's existence presides over "Knowledge". Known as the "Great Sorcerer", he is the most powerful Sorcerer in the world, was part of the Eight Warlords, and was a former friend of Death himself. After the wake of Asura's sealing, he later secluded himself onto Lost Island in isolation, using the island's demonic magnetic field to hide.
From his creation of the Demon Tools and the instructions that led to the development of Demon Weapons, as well as remarks made by numerous respected others and the confirmation provided by The Great Old One of Power, it is obvious that Eibon's most defining trait is his intelligence, which far exceeds any other individual observed thus far. This abundance of knowledge is as much of a gift as it is a curse, in that while it allows Eibon to understand and see through all things, it drives those around him to madness.
Not much can be told of Eibon's actual personality in regards to the Manga. He appears to be a rather formal man, speaking with sophisticated vocabulary and not expressing much emotion at all. He does seem to be slightly concerned about Kid when he comes to Lost Island, and also seems to have an interest in helping him find the answers he seeks. Unlike The Great Old One of Power, Eibon does not present himself as an enemy of Kid or Death, and does not emit a wavelength that is relatively dangerous at close range, possibly in order to keep others from falling into madness.
However, he is not without flaws. Shinigami has mentioned that Eibon is a very curious individual. He has expressed that even when they both agreed to never try to create the Demon Weapons, as the method was unjust, he still showed signs that he really wanted to do so. This side is shown to have him align with witches. He also is one that would go to great lengths to achieve a goal, even if the consequences would cause him and his friendship with Death to suffer. In the anime, for example, he sways from Shinigami's side by aligning with Arachne in an effort to save his wife.
In the anime, Eibon presents himself with the same characteristics as what has been shown so far in the manga but inclines to a much more friendly, good alignment. He speaks to Shinigami as if the two are personal friends, and it is explained that his original goal in creating Demon Tools was to benefit and help humanity. However, it is explained that his research soon turned to a search for the way to grant someone immortality in order to save his beloved wife from death. Unable to find such a way, he was manipulated by Arachne Gorgon and created "BREW". He himself then explains his tragic grief and sorrow for straying from Shinigami's side, explaining that he has suffered the death of friendship, betrayal, and involvement with Witches. Lastly, he states the loss of the one he loved most, his wife, not to the fatal illness she had, but to the explosion set on Lost Island by Arachne. He then makes amends for these misdeeds by lending BREW's power to Shinigami, and hopes that he will save the world with it.
Although Eibon is depicted as a relatively tall humanoid figure, due to the presence of his ornamental clothing his exact physical proportions and even his facial features remain mostly obscured, making it difficult to discern his actual characteristics. This concealing attire is comprised from a simplistic steel mask, attached to a protruding hat with an additional visor that descends down the entirety of his face, and a full length robe, which covers the remainder of his body. Layered over this dark robe are numerous linear patterned panels, accented by metallic plating that is also found on Eibon's shoulders and running down his sides, and protruding from the ends of his sleeves are similarly constructed angular projections. Completing his typical dress is a long triple-wrapped scarf, which terminates in a spherical bead and various tassels at end, and an unusual triangular section that extends forth from his chest, featuring steel panels fashioned into the shape of a capital letter "E".
Magic & Abilities
As the Great Old One of Knowledge, Eibon is by far the most powerful Sorcerer known within the series of Soul Eater.
In the anime, Eibon has displayed the ability to move objects without touching them. He seems to utilize this by moving his arm, surround the object being lifted in a blue aura. However, it is shown that he can also so without arm movement and can even use it to levitate himself, in which also surrounds him in a blue aura.
Fitting for his status as a Great Old One of Knowledge, Death the Kid himself comments that Eibon has the ability to "see through everything". Not only was Eibon able to know Kid by his nickname despite not having met him but he was also able to see Kid's past experiences and even iterated his current thoughts in front of the Shinigami.
Like all of the Great Old Ones, Eibon emits a Madness Wavelength. His very existence drives people to Madness. Unlike others, however, his Madness Wavelength doesn't emit dangerously unlike that of Asura's.
- Madness of Knowledge: This Madness has the ability to present a person with absolute knowledge, stopping their thoughts altogether. 
Eibon is known to be an extremely intelligent individual, with The Great Old One of Power's comments suggesting Eibon's most renown trait is his intelligence. He's even known as the true mastermind behind the blueprints of the Demon Weapons with inspiration coming from Excalibur, a Mystical Weapon. In addition, the Sorcerer himself is known to have created Demon Tools and Demon Books with immense capabilities as well as knowing his way around machinery.
In the anime, Eibon has the ability to bound his soul, a ability similar to that of Death. He bound himself to The Key to ensure no one could use "BREW" without his presence to make sure it didn't fall into the wrong hands.
During the Grim Times, Eibon served directly under Shinigami as one of his The Eight Warlords alongside the other Great Old Ones, where he partook in various confrontations as part of a long lasting battle against the Witches. During this time, he would consult with Death on how to better humanity. He would then create blueprints of the Demon Weapons, his inspiration from Excalibur. However, while he was extremely curious and wanted to create a Demon Weapon, Death and Eibon decided the process was too unjust and did their best to seal the information.
At an unknown time, he would later side with Arachne. In the Anime, it is explained that he would side with Arachne in an effort to save his wife. Their partnership would result in the creation of BREW. However, she would perish after the island explosion. Arachne also manages to steal the Book of Eibon and creates Demon Weapons, mass producing them.
Later, he would witness to the birth of the first Kishin. However, sometime after the events surrounding the devolution of Asura into the first Kishin, he disappeared from the world, leaving many questions surrounding the conditions of his existence.
A Eve's Fight to the Death
Eibon made a cameo along with the Table of Contents from the Book of Eibon in a flashback about Asura.
Engulfed by the swirling magnetic field located at the center of the Lost Island, which has resulted in an unusual temporal anomaly that manifests itself in a repeating holographic representation of the events occurring in the area over 800 years ago; Maka Albarn, Black☆Star, Death the Kid and their respective weapon partners encounter Mosquito, just after he had obtained their mutual objective of capturing the Demon Tool, "Brew". As the two opposing forces ready themselves for the inevitable confrontation, their preparations are abruptly interrupted by the sudden presence of a strange individual crossing the battlefield, whom Kid identifies as Eibon. Due to this solitary apparition seemingly being entirely oblivious to the current situation, it is assumed that this Eibon is but an image resulting from the effects of the devastating explosion, indicating his presence on the island just over 800 years prior.
When the Anime diverges from the Manga after the conclusion of the battle for Brew, it is revealed how Eibon came to be the authority on the development of demon tools and that the research had originally been designed for preserving order in the world. At a certain point though, Eibon’s research began to become more focused upon the subject of immortality. It is then later explained by Excalibur that the reason for this was in order to save his sick wife, but he couldn’t make any progress and eventually turned to Arachne for assistance. The end product of the two’s combined research was the Demon Tool, Brew.
Just a Simple Murder Story
Ascertaining from the remarks of the Black Mass that Eibon is in fact still alive, Kid concludes that the suspected image he observed while on the Lost Island was likely the real Eibon, simply utilizing the unusual phenomenon to conceal his actual location from others. Returning to the interior of the magical magnetic field, Kid challenges the supposed apparition and Eibon admits that he is indeed correct. Aware of Kid's hidden misgivings about Kishin, Brew and whether his own father is the root of Madness, Eibon asks the child to follow him.
Eibon guided Kid, giving him advice about what to do and states that only one of his friends can have the answer about the Kishin. (?)
- Eibon's name alludes to a character of the same name from H. P. Lovecraft's Cthulhu mythos. Eibon first appeared in Clark Ashton Smith's Hyperborea stories and referenced repeatedly in Lovecraft's own stories. Just as within the Soul Eater series, Smith's Eibon is accredited as the writer of the Book of Eibon, a tome that, among other things, chronicles Eibon's life and includes his magical formula.
- The Black Mass describes the qualities of the five remaining warriors as "Order, Wisdom, Power, Anger, Fear". It is presumed that Eibon's respective property is "Wisdom".
- ↑ Soul Eater Manga: Chapter 12
- ↑ 2.0 2.1 Soul Eater Manga: Chapter 72
- ↑ Soul Eater Manga: Chapter 16
- ↑ Soul Eater Anime: Episode 46
- ↑ 5.0 5.1 5.2 Soul Eater Manga: Chapter 87
- ↑ Soul Eater Chapter 72, page 37
- ↑ Soul Eater Chapter 35, pages 38-39
- ↑ Soul Eater Anime: Episode
- ↑ Soul Eater Manga: Chapter 82
- ↑ Soul EAter Manga: Chapter 99
- ↑ Cite error: Invalid
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- ↑ Soul Eater Anime Episode 47
- ↑ Soul Eater Chapter 35, pages 38-40
- ↑ Soul Eater Chapter 36, pages 1-4
- ↑ Soul Eater Chapter 87, pages 13-16
|Great Old Ones||DeathOrder • ExcaliburRage • AsuraFear • EibonKnowledge • The Great Old One of PowerPower|
|Madness-Types||Madness of Fear • Madness of Order • Madness of Knowledge • Madness of Rage • Madness of Power|
|Left Group||Death • Excalibur • Eibon • The Great Old One of Power|
|Sorcerer||EibonGreat Old One • GopherDemon Tool Soldier • Noah (Greed)Icon • Noah (Wrath) Icon • Noah (Lust)Icon • Noah (Gluttony)Icon • Noah (Envy)Icon • Noah (Pride)Icon • Noah (Sloth)Icon • Unknown Sorcerer Prisoner • Grimoire|
|Sorcerer-related Items||Demon Book • Demon Tool|
|Demon Books||Book of Eibon • Grimoire's Demon Book|
|Demon Tools||Eternal Spring • BREW • Moral Manipulation Machine • Demon Tool Eibon • Mechanical Clowns • Demon Tool Soldiers • Demon Belt • Morubi|