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作者：Andy Griffiths　　イラスト：Terry Denton
現地価格：$7.99
ISBN-13：9781250075116
ISBN：1250075114
出版社：Square Fish
発行年月：2016/04
Binding：Paperback
ページ数：368

Andy and Terry are once again inviting readers to come hang out with them in their astonishing 39-story treehouse (it used to be 13 stories, then 26 stories, but they keep expanding). And this year they will have even more time to jump on the world's highest trampoline, toast marshmallows in an active volcano, swim in the chocolate waterfall, pet baby dinosaurs, and go head-to-trunk with the Trunkinator, since Terry has created the greatest invention that he or anyone else has ever invented . . . a Once-upon-a-time machine that will write and illustrate their entire book for them!