In this exciting adventure, leading writer Val Andrews combines the amazing detective Sherlock Holmes and Billy Bunter, the famous overweight schoolboy, into one fast moving story.

At Greyfriars School, the senior master has lost the manuscript of the history of the famous school. The headmaster calls in old boy, Dr. Watson and seeks his influence to engage Sherlock Holmes to solve the mystery. During his investigations, the master detective not only traces the missing manuscript but is able to solve a number of other related puzzles - including a murder case - for the local constabulary.