Children will have a scarily good time completing the colour-by-numbers puzzles in this Monster Mayhem book Each picture puzzle contains numbers that correspond to a colour that can be found on the inside of the jacket sleeve. Children use this colour guide to select a pencil or pen and fill in the segments until they find an amazing picture of a monster emerging before them. What's more each spread features humorous hair-raising text about the monsters and challenges the reader to spot specific details and creatures.