Sherlock Holmes and the Disappearing Diamond by Sam Hearn is a combination mystery and graphic novel. John Watson starts school at the Baker Street Academy where he meets his new best friends, Martha Hudson and Sherlock Holmes. He also becomes acquainted with Baskerville, the academy’s trusty dog. Watson loves to write and Martha is a skilled social organizer. Sherlock can be counted on to use deductive reasoning to ferret out ordinary intrigues as well as solve the case of the disappearing diamond and make connections between the case and his school nemesis, James Moriarty This light mystery will have young super sleuths observing their surroundings with a critical eye. The art work adds to the story by revealing key details and by being fun and fresh. Recommended for young mystery readers who enjoy the graphic novel format.