MAZE: Solve the World's Most Challenging Puzzle (1985, Henry Holt and Company) is a puzzle book written and illustrated by Christopher Manson. The book was originally published as part of a contest to win $10,000. The book was adapted as the computer game Riddle of the Maze in 1994 by Interplay. This version featured full color illustrations and voice-overs for the narrator. The contest has been void since 1987, but the book may still be purchased (ISBN 0-8050-1088-2).