As a favor for a friend, Mycroft Holmes asks his wayward brother Sherlock to serve as a tutor at an orphanage. In this second book in the series by NBA star Kareem Abdul-Jabbar, Sherlock finds himself at home among the street urchins, and when a boy dies of a drug overdose, he follows his leads to the opium dens of the London docks. Meanwhile, Mycroft meets a beautiful Chinese woman connected to this same mystery, and the secrets that he and Sherlock have kept from each other may have catastrophic consequences.