Murder on the Midnight Plane Author:Gaby Waters, Graham Round (Illustrator) Who killed the man in seat number 13? What was his secret and why was he silenced? Can Sam and Spike unravel the sinister mystery of the Murder on the Midnight Plane? — Each book in this exciting series contains a thrilling adventure story, packed with entertaining puzzles to solve. There are extra clues to help you if you get stuck along the way... more » and answers at the back of each book.« less