The reader must solve an assortment of puzzles to help Tim when he finds an old Hypnoman comic book and lands inside the story, where he must find the Hypnostone before the Namtar gets it first.
After studying History at Oxford, Tony Allan worked for the British Broadcasting Company and as a magazine editor before turning to book publishing, including the Myth and Mankind series.
I love these puzzle adventure books put out by Usbourne. Each book is a story involving some mystery that needs to be solved. Each page give you a picture or series of pictures, comic book style, in which are a lot of visual clues to solve a puzzle. There are often a lot of messages to decode, mazes and hidden picture clues.