In 1868, with his army officer father suddenly posted to India, and his mother mysteriously "unwell," fourteen-year-old Sherlock Holmes is sent to stay with his eccentric uncle and aunt in their vast house in Hampshire, where he uncovers his first murder and a diabolical villain.

In 1868, with his army officer father suddenly posted to India, and his mother mysteriously "unwell, " fourteen-year-old Sherlock Holmes is sent to stay with his eccentric uncle and aunt in their vast house in Farnham, where he uncovers his first murder and a diabolical villain.

When Sherlock and Amyus Crowe, his American tutor, visit Sherlock's brother Mycroft in London, what they find shocks both of them to the core: a locked room, a dead body, and Mycroft holding a knife. The police are convinced Mycroft is a vicious murderer, but Sherlock is just as convinced he is innocent. Threatened with the gallows, Mycroft needs Sherlock to save him. The search for the truth necessitates an incredible journey, from a railway station

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"A fourth action-filled puzzler for teen Sherlock as he plunges into a fight for his life and battles to discover what has happened to his missing friends"--

The previous diaries of Arthur Conan Doyle tell of the shadowy real life Sherlock Holmes, a medical school dropout. While in the laboratory of Dr. Joseph Bell, a brilliant Edinburgh surgeon, Holmes learned anatomy, surgery, observation and deduction. These skills and his ability to solve crimes led to his recruitment by the British secret service. In this the last of three diaries, Doyle recounts a series of murders and the pursuit of a sinister Russian...