While on a school trip to the British Arts & Antiquities Museum, John Watson and his friends from the Baker Street Academy get involved in a mystery when the Alpine Star, a famous diamond, is stolen.
While on summer vacation at the seaside, twelve-year-old Irene Adler meets the young Sherlock Holmes, and his friend Arsène Lupin--and when a dead body floats ashore the three young friends set out to solve the mystery.
Sherlock Holmes and Dr. Watson travel to Dartmoor to solve the mystery surrounding the late Sir Charles Baskerville, a family curse, and a monstrous hound. Written in graphic-novel format.