The 13-Storey Treehouse (The Treehouse Series, 1)

Andy and Terry live in the WORLD'S BEST treehouse!

This incredible treehouse features:

• A giant catapult
• A secret underground laboratory
• A tank of man-eating sharks
• A marshmallow machine that follows you around and shoots marshmallows into your mouth whenever you're hungry!

But beware:

• The sea monkeys
• The monkeys pretending to be sea monkeys
• The giant mutant mermaid sea monster
• And whatever you do, don't get trapped in a burp-gas-filled bubble...!

Andy Griffiths and Terry Denton's fantastically funny 13-Storey Treehouse is brought to life through a delightful combination of text and cartoon-style illustrations.