Boo travels all over the world with his friends to learn about who lives in each place and what happens there. In this series of books, Boo and his friends have fun at the funfair, shiver in the Antarctic, explore a cave and enjoy being at the theatre. Each book has a peep hole cover and peep hole pages.

Boo! In the Cave: In a Cave 2004, Egmont Books Ltd, London

ISBN-13: 9781405210690