Mycroft Holmes in "The Greek Interpreter", his blundering approach to the case nearly costs the client his life. Mycroft resembles Sherlock, but is described in "The Greek Interpreter" as being "a much larger and stouter man". In "The Bruce-Partington Plans", the following description is given: Mycroft spends most of his time at the Diogenes Club, which he co-founded. He is the only character to refer to Sherlock exclusively by his first name. Mycroft Holmes has been portrayed many times in film, television, and radio adaptations of the Holmes stories. The character has been used many times in works that are not adaptations
Young Sherlock Holmes: Black Ice escape from Wormesley. Sherlock and Stone reach the building where Mycroft and Count Shuvalov are located. Once there, they lure away the falcon trained to kill Shuvalov. Sherlock Holmes has grown since the events of his previous two adventures, and he is not afraid to do things on his own initiative. When he realizes that Amyus will not be accompanying him to Russia he is initially disappointed and worried how he will perform without his mentor, but soon grows in confidence. His relationship with Rufus Stone becomes more complex when Mycroft reveals a secret about Stone. His admiration for his