The Mummy Mystery What's going on at the museum in Valleby? Is it really true that the Egyptian mummy came to life after 3000 years? The horror-stricken night watchman claims that he saw the mummy walking around the museum. The very same night, the most valuable painting in the museum is cut out of its frame. And the young detectives, Jerry and Maya, become involved in a very unusual case. Jerry and Maya are in the same class at school and run the Jerry Maya Detective Agency together. Meet them in a series of puzzling mysteries set in and around the small town of Valleby. Each book has a rich gallery of characters to be captivated by on the exciting road to solving the mystery.