Anthony Horowitz has written a Sherlock Holmes novel from Dr. Watson’s perspective. Holmes is approached by an art dealer in London, who claims a member of an American gang is after him for revenge. Holmes, of course investigates, and along the way he enlists the help of a band of poor street kids he calls “the Baker Street Irregulars”. But when one of the boys is cruelly murdered, Holmes resolves to catch his killer. It’s a well-written mystery, with a few dark elements. Recommended for mystery fans who don’t mind a few brutal murders…