It is the summer of 1868, and Sherlock Holmes is fourteen. On break from boarding school, he is staying with eccentric strangers—his uncle and aunt—in their vast house in Hampshire. When two local people die from symptoms that resemble the plague, Holmes begins to investigate what really killed them, helped by his new tutor, an American named Amyus Crowe. So begins Sherlock's true education in detection, as he discovers the dastardly

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In 1868, teenaged Sherlock Holmes faces danger in a train station for the dead, a museum of curiousities, and downtown Moscow as he helps his brother, Mycroft, who has been framed for murder.

Kidnapped and taken to China, young Sherlock Holmes enjoys adventure on the high seas before encountering a puzzling case of three men bitten by the same poisonous snake in different parts of Shanghai. Includes historical notes.