"When Kitty spots a mysterious figure lurking in the shadows near the library, her super senses alert her to trouble. That night, she returns to discover that there's been a break-in. The whole library is in a mess: displays have been ruined, books are scattered all over the floor, and Pixie the cat's favourite storybook has disappeared. There's something very strange going on, and it's up to Kitty to find out who's responsible. Will a set of muddy pawprints lead to the culprit...?"--