This bestselling story has now been brilliantly adapted for audio CD and there are two readings - the first is a straight reading with music, and the second has a special raah! sound to indicate where to turn each page as you read along in the book.

Harry has to go and play at Charlie's house for the day and he doesn't want her to play with his beloved dinosaurs.

But when Charlie builds a primordial swamp, they get drawn in to the exciting adventure. And then Tyrannosaurus gets captured by a giant swamp snake - will they be able to rescue him?