London, 1890. 221B Baker St. A fine art dealer named Edmund Carstairs visits Sherlock Holmes and Dr John Watson to beg for their help. He is being menaced by a strange man in a flat cap -- a wanted criminal who seems to have followed him all the way from America. In the days that follow, his home is robbed, his family is threatened. And then the first murder takes place. Almost unwillingly, Holmes and Watson find themselves being drawn ever deeper...

"When the critic who gave his new play scathing reviews is murdered, stabbed in the heart with his ornamental dagger, author Anthony Horowitz is arrested by an old enemy out for revenge and the only man who can help him is his estranged partner in solving crime, Daniel Hawthorne."

Riverside Close is a picture-perfect community. The six exclusive and attractive houses are tucked far away from the noise and grime of city life, allowing the residents to enjoy beautiful gardens, pleasant birdsong, and tranquility from behind the security of a locked gate. It is the perfect idyll, until the Kentworthy family arrives, with their four giant, gas-guzzling cars, gaggle of shrieking children, and plans for a garish swimming pool in...

Days after the encounter at the Swiss waterfall, Pinkerton detective agent Frederick Chase arrives in Europe from New York. Moriarty's death has left an immediate, poisonous vacuum in the criminal underworld, and there is no shortage of candidates to take his place -- including one particularly fiendish criminal mastermind. Chase and Scotland Yard Inspector Athelney Jones, a devoted student of Holmes's methods of investigation and deduction originally...