The Treehouse Series (Books 1-5)

Who wouldn't want to live in a treehouse? Especially a 13-storey treehouse that has a bowling alley, a see-through swimming pool, a tank full of sharks, a library full of comics, a secret underground laboratory, a games room, self-making beds, vines you can swing on, a vegetable vaporiser and a marshmallow machine that follows you around and automatically shoots your favourite flavoured marshmallows into your mouth whenever it discerns you're hungry. This set includes: The 13-Storey Treehouse, The 26-Storey Treehouse, The 39-Storey Treehouse, The 52-Storey Treehouse, and The 65-Storey Treehouse.