Andy Griffiths Treehouse chaos kids love
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- Andy Griffiths published The 13-Storey Treehouse with Pan Macmillan Australia in 2011, kicking off a series that now includes fourteen books.
- Each volume adds thirteen storeys to the treehouse, following a strict formula: The 26-Storey Treehouse (2012), The 39-Storey Treehouse (2013), and so on through The 169-Storey Treehouse (2023).
- Illustrator Terry Denton has partnered with Griffiths since the 1990s; the Treehouse books feature hundreds of Denton's pen-and-ink cartoons per volume.
- The series has sold over 10 million copies globally and been translated into more than 35 languages.
- Griffiths previously co-wrote the Just! series (1997–2008) with Terry Denton, another illustrated comedy hit with Australian primary schoolers.
- The Treehouse format — short chapters, dense illustrations, escalating absurdity — mirrors the pacing of Dav Pilkey's Captain Underpants and Jeff Kinney's Diary of a Wimpy Kid.
The 13-Storey Treehouse — Andy Griffiths
The one that started the cult — bowling alleys, shark tanks, and a deadline-driven plot that teaches kids how a book gets made while they're laughing too hard to notice.
The original 2011 volume introduces the formula: Andy and Terry live in a ridiculous treehouse, waste time inventing new rooms, then panic when their publisher Mr Big Nose demands the manuscript they haven't started. The meta-joke — a book about two characters failing to write a book — shouldn't work for seven-year-olds, but Griffiths plays it so broad and Denton's drawings are so frantic that kids just ride the chaos. It's the gateway drug. Explore our current copy of The 13-Storey Treehouse or browse more Coffee Table Books at Patina.
The 26-Storey Treehouse — Andy Griffiths
The sequel doubles down with a man-eating mermaid, a self-driving car, and the world's most annoying sea monkeys — proof that Griffiths will never run out of absurd floor ideas.
By book two (2012), the formula is locked: thirteen new storeys, a new existential crisis (this time involving time travel and accidental fish-marriage), and Terry Denton drawings that feel like they were sketched during a sugar rush. The 26-Storey edition is where the series proves it's not a one-hit wonder — the jokes are sharper, the pacing tighter, and the cliffhangers shameless. Kids who finish it immediately demand book three. Explore our current copy of The 26-Storey Treehouse or browse more Coffee Table Books at Patina.
The 39-Storey Treehouse — Andy Griffiths
The third instalment cranks the absurdity to eleven with a chocolate waterfall mishap and an invasion of un-unvented storeys — because what could go wrong with a drive-through car wash inside a treehouse?
Released in 2013, The 39-Storey Treehouse is the book where Griffiths stops worrying about plausibility altogether. A once-upon-a-time machine, a bomb-disposal unit staffed by Andy and Terry (who have zero qualifications), and a prolonged subplot about never running out of ideas — it's recursive comedy that somehow stays accessible to the chapter-book crowd. The Denton drawings are denser here, nearly one per page, so reluctant readers never face a wall of text. Explore our current copy of The 39-Storey Treehouse or browse more Coffee Table Books at Patina.
The 52-Storey Treehouse — Andy Griffiths
The fourth volume introduces a 52-card pickup machine and a complete disregard for physics — this is the one where Griffiths admits the treehouse is basically a TARDIS with worse plumbing.
By 2014, the series had settled into its groove: Andy and Terry invent increasingly unhinged rooms (a cloning machine, a wishing well that grants terrible wishes), then spend 300 pages fixing the disasters those rooms create. The 52-Storey Treehouse leans hard into slapstick — characters get cloned, shrunk, and launched out of cannons — but the emotional through-line (Andy and Terry's friendship, their shared creative panic) keeps it from feeling hollow. It's the Looney Tunes of Australian middle-grade lit. Explore our current copy of The 52-Storey Treehouse or browse more Coffee Table Books at Patina.
The 65-Storey Treehouse — Andy Griffiths
The 2015 instalment where their detective friend Jill vanishes and Andy and Terry fumble through a rescue mission involving a pet-grooming salon and a vegetable vaporiser — because of course.
The 65-Storey Treehouse is the first in the series to foreground Jill, the hyper-competent animal detective who lives next door and occasionally bails the boys out of their self-created messes. Her disappearance gives the book real stakes (for once), though Griffiths still stuffs every chapter with enough tangents and visual gags that it never feels serious. This is the volume where the formula starts to feel like jazz — Griffiths knows the structure so well he can improvise inside it. Explore our current copy of The 65-Storey Treehouse or browse more Coffee Table Books at Patina.
The 78-Storey Treehouse — Andy Griffiths
The sixth book (2016) weaponises every annoying trope in adventure fiction — prophecies, chosen ones, epic quests — then plays them for maximum slapstick chaos.
The 78-Storey Treehouse is peak meta-Griffiths: Andy and Terry get sucked into a fantasy novel and have to navigate a hero's journey despite being deeply unqualified. It's a send-up of every Tolkien knock-off on the school library shelf, but it's also a genuine page-turner because Denton's drawings of dragon attacks and castle sieges are legitimately exciting. As of September 2026, this is the volume most likely to hook kids who've aged out of Wimpy Kid but aren't ready for Percy Jackson yet. Explore our current copy of The 78-Storey Treehouse or browse more Coffee Table Books at Patina.
Andy Griffiths built a formula — absurd premises, relentless illustration, shameless cliffhangers — and rode it for over a decade without the joke getting stale. That's harder than it looks. The Treehouse books are loud, silly, and engineered to turn "I don't like reading" kids into "can I have the next one" kids, which is the only metric that matters.
What age group are the Andy Griffiths Treehouse books written for?
The series targets readers aged 7–12, but the sweet spot is kids around 8 or 9 who are transitioning from picture books to chapter books. The dense illustrations (one every few pages) mean even reluctant readers don't face long blocks of unbroken text, and the humour is broad enough that younger siblings often listen in on read-alouds. Teachers love them for hooking kids who claim they "hate reading."
Do I need to read the Treehouse books in order?
Honestly, no — each volume is self-contained enough that you can jump in anywhere. That said, starting with The 13-Storey Treehouse (2011) gives you the origin story and lets you watch the absurdity escalate naturally. Kids who binge the series often report that the formula gets funnier the more storeys you've survived, so there's something to be said for reading them in sequence.
Where can I buy secondhand Andy Griffiths Treehouse books in Sydney?
Patina Paperbacks stocks rotating preloved copies of the Treehouse series, including early volumes like The 13-Storey and mid-series hits like The 65-Storey. We ship Australia-wide, so you don't need to be in Sydney to grab a copy. Check our Coffee Table Books collection for current stock — these move fast during school holidays.
How many Treehouse books has Andy Griffiths written?
As of September 2026, Griffiths has published fourteen Treehouse books, starting with The 13-Storey Treehouse in 2011 and running through The 169-Storey Treehouse in 2023. Each instalment adds thirteen new storeys, so the series follows a strict mathematical progression. Griffiths has hinted that he'll keep going as long as kids keep reading, which means we're probably looking at a 182-storey instalment sometime soon.
Are the Treehouse books similar to Diary of a Wimpy Kid?
Thematically, yes — both series mix text and illustration to create a low-barrier entry point for reluctant readers, and both lean heavily on slapstick humour and kid-logic absurdity. But where Jeff Kinney's Wimpy Kid books are grounded in recognisable school-life chaos, Griffiths goes full cartoon surrealism: exploding toilets, time-travelling outhouses, man-eating mermaids. If your kid loved Wimpy Kid but wants something louder and weirder, the Treehouse books are the natural next step.