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There's no such thing as bad. Good and bad are fairy tales. We have evolved to attach an emotional significance to what is nothing more than the survival strategy of the pack animal. We are conditioned to invest divinity in utility. Good isn't really good, evil isn't really wrong, and bottoms aren't really pretty.
~ Eurus Holmes
Which one is pain?
~ Eurus as a little girl after hurting herself.

Eurus Holmes is the secondary antagonist of the BBC series Sherlock. She is the evil younger sister of Sherlock and Mycroft Holmes.

She is portrayed by Sian Brooke, who also plays Victoria Kesh in Supacell.

Biography[]

Background[]

Eurus is the third child of Mr. and Mrs. Holmes. Like Sherlock, she has a genius-level intellect and a gift for scientific and deductive reasoning. Unlike him, however, she is devoid of empathy, compassion, and remorse; she is the "high-functioning sociopath" that Sherlock merely pretends to be. When she was a child, she murdered Sherlock's best friend Victor Trevor, by locking him in a well and allowing him to drown, and refused to give up his location. The situation traumatized Sherlock to the point where he blots it out and "rewrites" his memories,  replacing his human friend as a dog called "Redbeard", whom Sherlock believes was put down, as well as completely erasing Eurus from his memories.

After she burns down the Holmes family mansion, she is then imprisoned at the maximum-security psychiatric prison Sherrinford. Mr. and Mrs. Holmes assume she is dead, with only her brother Mycroft (who works for the British government) knowing her true location.

At Sherrinford[]

Eurus caused many problems at the facility, managing to brainwash multiple people in the facility simply by talking to them, even causing one doctor working there to kill himself and his family. However, she was kept alive for how valuable she was at solving crimes. Mycroft even mentions she managed to predict the exact dates of three different terrorist attacks after just one hour on Twitter. In exchange for her help, Mycroft would bring her gifts on Christmas.

One of these gifts was five unsupervised minutes with Jim Moriarty, whom she had taken an interest in due to his interest in Sherlock. Together, the two planned out a scheme to torment Sherlock that would take effect if Moriarty died. Moriarty also recorded several clips of himself speaking for her to use as part of the plan.

Series 4[]

Once Moriarty died, Eurus set her plan into motion, first by hijacking every TV in Great Britain to broadcast Moriarty saying "I'm back". She would later disguise herself as a redhead and flirts with Watson in an attempt to drive a wedge in his marriage. She disguises herself again as the daughter of Culverton Smith to get Sherlock to investigate him, and again as Watson's therapist, after murdering the actual therapist living in the house.

Eventually, Sherlock and Watson figure out who she is from an offhand line from Mycroft, and, after she attempts to blow them up with a grenade, the three go to visit her. However, the three soon discover that Eurus had gained control of everyone working at Sherrinford, including its governor. Eurus then has Sherlock, Watson and Mycroft locked up in a room so she can begin her "game" with Sherlock.

She provided Sherlock with a gun and had him choose whether to have Mycroft or Watson kill the governor. If one of them didn't kill him, Eurus threatened to kill the governor's wife. Sherlock initially turned to Mycroft, but he refused, not wanting to have any blood on his hands. Sherlock then turned to Watson, but the doctor couldn't do it either. The governor then frantically grabbed the gun from Watson and shot himself. However, this didn't stop Eurus from killing the governor's wife. Eurus mocked Watson, saying that the only thing that came of his morality was that two people died instead of one. Eurus gave Sherlock a minute of talking time with a little girl on a plane she had apparently rigged to crash. Eurus promised Sherlock more time with her if he solved the next parts of her game.

For the next part, Eurus had Sherlock solve a murder case, presenting him with three suspects. Eurus also revealed that the three suspects worked at Sherrinford, and that she had them tied up, ready to drop them into the ocean. When Sherlock solved the case and "condemned" the guilty one, Eurus dropped the two innocent ones instead. She then dropped the guilty one to see if that would feel different, but it didn't.

For the next part, Eurus presented Sherlock with a coffin and had him determine whose it was. However, Mycroft found the coffin's lid, which read "I love you" on it. Eurus then had Sherlock call up Molly Cooper to get her to say "I love you". If Sherlock didn't get her to say it in three minutes, Eurus threatened to blow up Molly's apartment with explosives she had apparently rigged there. However, when Sherlock finally did get her to say it, Eurus revealed that she had lied about the explosives, rendering the whole ordeal useless.

For the next test, Eurus attempted to get Sherlock to kill either Watson or Mycroft with the gun previously used to kill the governor, stating he could only proceed with one of them. However, Sherlock pointed the gun at himself, prompting Eurus to tranquilize all three of them and drag them back to Sherlock's childhood home. Eurus placed Sherlock in a fake room, and John in the well she had previously killed Victor Trevor in. She also revealed to Sherlock the truth about "Redbeard".

However, Eurus' psychosis eventually broke down and Sherlock discovered that the "girl alone on the plane" was actually a representation of her situation, with her being in solitude miles above all others, understanding everything except how to land and get down to the level of everyone else. Sherlock was able to talk Eurus into helping him save Watson before she was taken away by the authorities and put back in Sherrinford. There, she fell into a completely catatonic state. However, during a visit Sherlock managed to get her to communicate by starting to play the violin with her.

Quotes[]

There's no such thing as bad. Good and bad are fairy tales. We have evolved to attach an emotional significance to what is nothing more than the survival strategy of the pack animal. We are conditioned to invest divinity in utility. Good isn't really good, evil isn't really wrong, and bottoms aren't really pretty.
Does it really make a difference, killing the innocent instead of the guilty?

Trivia[]

  • The existence of a third Holmes sibling was established in the series three episode "His Last Vow", when Mycroft stated he wasn't prone to brotherly compassion, and told someone that they "knew what happened to the other one". However, at this point it was assumed that Mycroft was speaking about a third brother and not a sister.
  • She admitted to raping a female nurse.
  • A younger sister of Sherlock Holmes named Enola Holmes exists in the non-canon works The Enola Holmes Mysteries by Nancy Springer, later adapted into a series of films starring Millie Bobby Brown.
  • Eurus' behavior and interaction with Sherlock is clearly based on Hannibal Lecter, which the guards at Sherrinford make reference to themselves.

Navigation[]

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Books
James Moriarty | Sebastian Moran | Charles Augustus Milverton | Irene Adler | Jonathan Small | Tonga | Mr. Jack Stapleton | Hound of the Baskervilles | James Windibank | Baron Adelbert Gruner | Culverton Smith | Jack Ferguson | Maria Gibson | Count Negretto Sylvius | James Winter | Josiah Amberley | Mortimer Tregennis | Von Bork | Clarence Devereux | Dr. Grimesby Roylott | Beppo | Abe Slaney | Professor Ratigan (Basil of Baker Street)

Movies
Young Sherlock Holmes: Eh Tar | Mrs. Dribb
The Great Mouse Detective: Professor Ratigan | Thugs (Fidget & Felicia)
Sherlock Holmes: Lord Henry Blackwood | Lord Coward | Irene Adler | James Moriarty
Tom and Jerry Meet Sherlock Holmes: Tom & Jerry | James Moriarty | Tin, Pan & Alley
Sherlock Holmes: A Game of Shadows: James Moriarty | Sebastian Moran
Sherlock Gnomes: Moriarty | Reggie and Ronnie | Irene Adler
Holmes & Watson: Mrs. Martha Hudson | James Moriarty
Enola Holmes: Dowager Lady Basilwether | Linthorn
Enola Holmes 2: Mira Troy | Superintendent Grail | Lord McIntyre

Television
Sherlock: Jim Moriarty | Eurus Holmes | Culverton Smith | Charles Augustus Magnussen | Irene Adler | The Black Lotus (General Shan) | Vivian Norbury | Jeff Hope | Dr. Bob Frankland | Lord Moran | Jonathan Small | Miss Wenceslas | The Golem
Elementary: Jamie Moriarty/Irene Adler | Sebastian Moran | Charles Augustus Milverton | Frank Da Silva | Natalie Gale | Lisa Hagen | Margaret Bray | Beth Roney | Dana Powell | Marla Ridgely Moore | Laura Lyons | Beth Stone | Gail Lundquist | Dr. Sepi Chamanara | Hannah Gregson | Marilyn Whitfield
Moriarty the Patriot: William James Moriarty | Louis James Moriarty | Albert James Moriarty | Charles Augustus Milverton | Blitz Enders | Argleton | Leonard Tomas Dublin | Dudley Bale | Enoch J. Drebber | Charles Baskerville | Graham Dunderdale | Daryl | Jack McGinty | Sebastian Moran

Video Games
The Great Ace Attorney: Adventures: Ashley Graydon | Tobias Gregson | Jezaille Brett | John H. Wilson | Joan Garrideb | Nash and Ringo Skulkin | Magnus McGilded
The Great Ace Attorney 2: Resolve: Mael Stronghart | Seishiro Jigoku | William Shamspeare | Selden | Olive Green | Odie Asman | Courtney Sithe | Enoch Drebber | The Red-Headed league | Klint van Zieks | Genshin Asogi

Comics
Moriarty: James Moriarty | Jade | Gottfried/Tartarus

See Also
House MD Villains | Moriarty the Patriot villains

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