Ian Whybrow

'Hi ludo dont be sad im your friend': this was my first text message to the boy. Not bad, was it? Not for a hamster. Ludo says I'm a genius, but I know he is as well. We have something else in common, too; we both want to escape, and to explore the outside. Just two problems. His parents, and the cat.

When a mysterious set of plastic dinosaur cards appear on his key-ring, Harry soon finds that he can call on an army of back-up dinosaurs. It only takes a rub with his finger to call up some monster-sized muscle!