Young Sherlock Holmes: Black Ice the truth behind his chance encounter with Sherlock. This secret changes Sherlock's relationship with Rufus forever. Young Sherlock Holmes: Black Ice Young Sherlock Holmes: Black Ice is the third novel in the Young Sherlock Holmes series that depicts Arthur Conan Doyle's detective Sherlock Holmes as a teenager in the 1860s. It was written by Andrew Lane and released in the United Kingdom on 3 June 2011 by Macmillan Books. It follows on from "" and is followed by "" Mycroft Holmes invites Sherlock and his tutor, Amyus Crowe, to London for a visit. When they arrive at the Diogenes Club
Minor Sherlock Holmes characters their relationship. She also posed as John Watson's therapist and then later revealed herself to be Eurus Holmes, and at the end of the episode shoots John Watson with a handgun. In the last episode, "The Final Problem", it is revealed that Sherrinford is in fact a high-security complex on an island to house some of the most dangerous criminals in the world, including Eurus. With Eurus having simply shot John with a tranquiliser dart, Sherlock and John stage a scenario where Mycroft will admit Eurus's existence. Mycroft explains that Eurus was the youngest child, 8 years younger than Mycroft