Treehouse Books in Order

Linked to the 169-story adventure, this edition focuses on the doppelganger twist. Strange doubles of Andy and Terry appear, turning everyday treehouse chaos into a battle against look-alikes who want to take over their lives and stories.

Now taller than ever, the treehouse includes a kangaroo-riding range, weather-control dome and hall of mirrors. When mischievous monkeys and distorted reflections start causing double trouble, Andy and Terry must figure out what is real.

Christmas Eve in the 156-story treehouse should be relaxing, but nothing goes to plan. A furious publisher, an evil snowman and an army of overexcited Santa clones combine to put both the holiday and their latest book at risk.

Camping ground, wrecking ball and spooky graveyard levels turn the 143-story treehouse into the worst place to relax. Terry drags a stressed-out Andy on a peaceful camping holiday that quickly becomes a hilarious sequence of jump scares and disasters.

Ten rowdy pirates invade the treehouse in a rhyming countdown tale for new readers. One by one they meet ridiculous slapstick fates until only a very surprised final pirate remains.

The treehouse now houses a soap-bubble blaster, toilet-paper factory and extraterrestrial observation centre. Giant flying eyeballs abduct the entire tree to planet Eyeballia, where Andy, Terry and Jill must battle through a deadly intergalactic gameshow to get home.

The 117-story treehouse features an Underpants Museum, tiny-horse level and terrifying Door of Doom. When Terry insists he can narrate as well as draw, his dot-heavy story derails the book and lands the whole team in trouble with the Story Police.

New levels include a never-ending staircase, a burp bank and a mighty fortress. With a brutal toothache stopping Andy from being funny, the duo turn to a joke-writing machine to save their latest book, only to unleash fresh chaos.

Asked to create a special story for World Book Day, Terry decides he should be the narrator for once. His simple tale about a single dot quickly breaks every storytelling rule and attracts the unwelcome attention of the story police.

A whirlpool level, a desert island and a very big red button make the 91-story treehouse the most hazardous yet. Andy and Terry are supposed to babysit their publisher's grandkids, but keeping them safe here is almost impossible.

The treehouse now boasts a scribbletorium, an all-ball sports stadium and an open-air movie theater. A famous director arrives to film Treehouse: The Movie, but a jealous gibbon and a herd of spy cows threaten to wreck the production.

With time machines, strange creatures and a giant maze, the 65-story treehouse is more dangerous than ever. A simple birthday mix-up sends Andy and Terry tumbling through history, where every leap in time makes finishing their book harder.

Thirteen more levels bring a wave machine, snakes-and-ladders game and ninja-snail academy. When their publisher Mr Big Nose vanishes, Andy, Terry and Jill must follow a trail of clues to a vegetable kingdom that is ready to boil them alive.

This edition of the fifth Treehouse book highlights the time-travel plot, as Andy and Terry use a machine to race through their own past and future. Each jump brings new levels, dinosaurs and historical mix-ups to derail their latest deadline.

The treehouse grows again, adding a chocolate waterfall, dinosaur petting zoo and not-very-merry-go-round. When Terry builds a Once-upon-a-time Machine to write their book for them, it locks them out and spins their story wildly out of control.

Now expanded to 26 stories, the treehouse has an anti-gravity chamber, ice-cream parlor and the dreaded Maze of Doom. Andy tries to tell how he and Terry first met, but pirates, storms and emergency shark surgery keep interrupting.

Andy and Terry live in a multilevel treehouse full of shark tanks, bowling alleys and bizarre gadgets. As their grumpy publisher demands a finished book, every new invention and visitor throws their deadline into fun, chaotic trouble.