Dive into a world of wacky adventures and boundless imagination in the third instalment of Andy Griffiths and Terry Denton's bestselling Treehouse series! The 39-Storey Treehouse continues the laugh-out-loud story told through a combination of engaging text and delightful cartoon-style illustrations. As Andy and Terry's amazing treehouse keeps expanding, so do their hilarious exploits! With thirteen new levels added, the treehouse now features a chocolate waterfall you can swim in, a volcano for toasting marshmallows, a baby-dinosaur-petting zoo, the world's scariest roller coaster, and much more. But the real excitement comes from Terry's greatest invention yet. . . a Once-upon-a-time machine that will write and illustrate their entire book for them! Join Andy and Terry on this wacky adventure that's perfect for reluctant readers and fans of humorous, illustrated chapter books. The 39-Storey Treehouse is the third book in this bestselling series that has sold over seven million copies worldwide. So what are you waiting for? Come on up and explore the most amazing treehouse ever! Collect all thirteen books in the Treehouse series for hours of side-splitting fun and nonstop adventure.