You'll meet an underwear-stealing cat, find out about sharks that glow, uncover a toilet in disguise, and learn about the biggest ever game of hide-and-seek. And the facts aren't the only secrets in this book, for hidden among the illustrations are ten mice just waiting to be found!

Lavishly illustrated with witty illustrations that combine artwork and photography, and verified by the experts at Encyclopaedia Britannica, Secret FACTopia! sheds light on some of the world's most amazing "hidden" facts, which kids will be desperate to share with their friends and family.

Index included.