Eurus Holmes

"The man who sees through everything is exactly the man who doesn't notice... when there's nothing to see through."

- Eurus to Sherlock

Eurus Holmes is the sister of Mycroft and Sherlock Holmes and a long-time patient of Sherrinford facility.

Spending her childhood in Musgrave Hall at the family house alongside her parents and her siblings Mycroft and Sherlock, Eurus very soon developped tremendous intellect even superior to those of her brothers as well psycopathic behavior and attachment to Sherlock. Eurus loneliness and jealousy culminated when she kidnapped and left to die Victor Trevor, the best friend of Sherlock, and burned the family house; causing her to be incarcerated at Sherrinford island for years in the total secret, Sherlock then rewriting his memories of Victor into his dog Redbeard and changing his personnality for a emotionless and cold man, also totally forgetting Eurus.

Years later, Eurus conceived a plan with criminal genius Jim Moriarty and managed to lure Sherlock and Mycroft as well John Watson at Sherrinford, setting a place a macabre game with all them with the posthumous help of Moriarty. Finally, the game culminated with the reveal of the truth of the demise of Victor and the lose of the control of her own mind by Eurus, finally getting reincarcerated at Sherrinford. Now completely catatonic, she received ponctual visits from Sherlock who played violon with her.

Early life
To be added

Help goverment
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Meeting James Moriarty
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Manipulating John Watson
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The game
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Personnality
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Abilities
"You realise I’m the smart one?" "As you never cease to announce." "But Eurus, she was incandescent even then. Our abilities were professionally assessed more than once. I was remarkable, but Eurus was described as an era-defining genius, beyond Newton."

- Mycroft and Sherlock

"Eurus doesn’t just talk to people. She ... reprograms them."
 * Genius-level intelligence: The brightest of all Holmes siblings and the most intelligent people at Earth, Eurus holded phenomenals levels of intellect, being described by Mycroft as a "era-defining genius". Her intellect was such Mycroft often used her for discovering serious treats, which she used then for gaining small "gifts" in exchange.

- Mycroft about Eurus

"Five minutes. It took her just five minutes to do all of this to us."
 * Master manipulator: To be added

- Sherlock about Eurus

"Beautiful." "You’re not looking at it." "I meant your playing."
 * Master tactician: To be added
 * Master investigator: To be added

- Sherlock and Eurus


 * Master violonist: To be added

Sherlock Holmes
To be added

Jim Moriarty
To be added