John Watson has barely settled into his new school, Baker Street Academy, when his teacher Ms De Rossi announces a trip to one of London's top museums, home to the Alpine Star, the world's most famous jewel.
With John and Martha at his side, can he uncover the mystery behind this extraordinary gem? Told through Watson's blog, detective notes, school assignments, media reports, and energetic comic-strip illustrations, this introduction to Arthur Conan Doyle's classic characters will have every young super-sleuth hooked!
John Watson has barely settled into his new school, Baker Street Academy, when his teacher Ms De Rossi announces a trip to one of London's top museums, home to the Alpine Star, the world's most famous jewel
