Martin Chatwin - The Beast

Martin Chatwin was a powerful magician and former High King of Fillory. As a child, Martin discovered Fillory while hiding in a grandfather clock in Christopher Plover's home. He and his siblings explored the world and had many great adventures that they would later recount to Christopher Plover, their novelist neighbor who later retold their adventures with his series of novels, Fillory and Further. After suffering from the abuse of Plover over the years, Martin devised a plan to stay in Fillory forever, striking a deal with the Fillorian god Umber in the process. Martin later abandoned his identity and went on to become on of the most feared creatures in Fillorian history, known as The Beast.

As his sister Jane grew to oppose Martin's rule over Fillory, she recruited members of a prestigious magical academy to combat him. After 39 attempts to defeat Martin failed, The Beast killed Jane in the 40th timeline she created.

The Beast of Fillory

Somehow, Martin managed to find a way back to Fillory after losing the button (most likely through the portal he followed Quentin, Julia, and Jane through), and he was determined to stay.

At first Martin attempted to use a conduit spell to tie himself permanently to Fillory, but he was thwarted by Rupert Chatwin who, after sensing what Martin could become, tied himself to the conduit before Martin could. As revenge, Martin cursed Rupert with a permanent sleep.

As a last resort, Martin mutated himself, most likely using a combination of the spellwork Christopher Plover had discovered (to grow extra fingers) and the wellspring water. After imprisoning Ember and making a deal with Umber to fake the god's death and allow him to leave Fillory, Martin took up residence in Castle Whitespire.

Powers and Abilities

Magic

Wellspring-Enhanced Physiology: Martin Chatwin, due to his drinking from the Wellspring of Fillory over the years, has been physically altered by its effects over time. Martin was shown to be physically mutated, having grown extra fingers on both hands in order to manipulate magic to such a high degree that he surpassed most Master Magicians. He has shown attributes such as enhanced durability and enhanced senses.

• Enhanced Strength: Chatwin's strength was tremendously enhanced beyond the peak of human potential, capable of lifting a man with a single hand.
• Enhanced Durability: Martin was able to survive a direct hit from the Rhinemann Ultra, case by an Essence-imbued Alice, followed by three attacks with the Majikku Misaru, with the third notably able to send him flying backward. Hence, he was still able to stand and engage in combat with Alice singlehandedly, literally. Although, despite his enhanced durability, he wasn't able to survive being torn apart by Niffin Alice after her transformation.
• Enhanced Senses: Martin was able to sense the presence of magicians like Quentin and Alice hiding in the brush behind him, as well as the wards and dimensional barriers of Brakebills being weakened by Alice's attempt to communicate with her brother Charlie. He was able to locate Travelers throughout the infinite Multiverse, psychically tormenting them to insanity and suicide.

Wellspring Magic Manipulation: Martin, as a byproduct of drinking from the Wellspring throughout his early years, has gained an immense amount of raw magical power. In that time he also has become quite knowledgeable about magic in general, learning to harness his power through the application of rudimentary but powerful spells. Though not as refined as those who received formal education on magic, Martin is nevertheless able to perform feats not readily accessible to even some of Brakebills' faculty members. Martin could travel between dimensions, briefly incapacitate deities, perceive magical wards without aid, manipulate the inner workings of a soul to access the Shade, possess others, telepathically communicate, and even paralyze a large group of people with ease. The acclimation of his power was not without its own price, as Martin slowly lost all of his humanity with the personal amputation of his own Shade. However, even with the Beast's knowledge and skill, he was shown to be nowhere near the level of a Niffin.

• Telepathy: He has been shown to be able to psychically communicate and terrorize Travelers across dimensional barriers.
• Possession: Martin's telepathic abilities were potent enough to allow him to completely take over Mike McCormick to such a degree that he was able to access memories and convincingly mirror his personality, fooling both Eliot and Dean Fogg with his feigned innocence.
• Teleportation: Martin, due to his love for Fillory, the whimsically beautiful land serving as a safe haven from Plover's abuse, searched for as many pathways into the world as he could. When he discovered he was no longer accepted by Ember and Umber, he pleaded with his sister to find him a way in without the help of the Fillorian gods. Eventually, he was able to escape into Fillory forever, once and for all. He later acquired the ability to do so without the Button's aid, due to his over-exposure to the Wellspring, the source of all magic. This has manifested in a form similar to Travelers, as Martin teleported himself and Julia Wicker from Fillory to Earth with a single gesture.
• Battle Magic: Martin has been shown to be well adept in the field of Battle Magic, as seen during his fight against four magicians at once, and then again in a duel with an Essence-enhanced Alice Quinn, where he was able to swiftly incapacitate and critically injure Quentin Coldwater with a single spell. He later was able to successfully fire off a fireball at Alice, even though he only had the use of one hand as he was significantly wounded by the Rhinemann Ultra, cast by an Essence-imbued Alice.

Abilities

• Master Tactician: Even under the terms of a Word as Bond, Martin has shown himself to be capable of getting the odds to shift to his favor. With the promise of their safety from his wrath, he was able to corral a band of acolytes from the Neitherlands to trap and kill all Travelers they came across in his effort to seal off Fillory from the rest of the Multiverse. He was able to trap Reynard the Fox by luring him with Marina Andrieski, deducing that the deity wouldn't reveal himself until she was vulnerable and secluded, despite him being under magical oath sworn to Julia to not harm her allies. He later attempted to use this skill to save himself, proceeding to try to sway the newly transformed Alice Quinn with the prospect of a deal, though this proved unsuccessful. Notably, Martin was able to convince Ember that he had killed his brother, Umber, with whom he had struck a deal with to abandon Fillory, thus making the god fear his supposed power.