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Whatever Happened to Professor Potts?: Follow the Clues to Unravel the Mystery (Usborne Solve It Yourself)
Whatever Happened to Professor Potts Follow the Clues to Unravel the Mystery - Usborne Solve It Yourself Author:Phil Roxbee Cox 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. Twenty detailed color photographs filled with clues and red herrings. Exciting and challenging mystery stories with brain teasing puzzles.