Find the clues in the photographs for these three mysteries: Whatever happened to Porfessor Potts?, Who stole the black diamond? and Where is the pirates treasure?

Find the clues in the photographs for these three mysteries: Whatever happened to Porfessor Potts?, Who stole the black diamond? and Where is the pirates treasure?

In order to discover who murdered the man in seat number thirteen, the reader must solve a series of puzzles.

Readers follow a trail of clues on each page in an attempt to find Professor Potts, who is missing. Includes helpful hints and answers at the back of the book.