Illustrated Mayhem: Aussie Giggles
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- The 13-Storey Treehouse, first published by Pan Macmillan Australia in 2011, launched a series that now spans fourteen books.
- Andy Griffiths previously co-created the Just! series (1997–2010) with illustrator Terry Denton, selling over 10 million copies worldwide.
- The Treehouse books feature Terry Denton's frantic line drawings on nearly every page, averaging one illustration per 1–2 pages of text.
- Gary Northfield's Julius Zebra: Rumble with the Romans! (2015) and Andy Riley's King Flashypants series (2016–2019) share Griffiths' visual-gag-per-page approach and absurdist tone.
- As of May 2026, the series has sold over 10 million copies globally and been translated into 35 languages.
The 13-Storey Treehouse — Andy Griffiths
The one that started the architectural insanity — a bowling alley, a see-through swimming pool, and a shark tank on the same property title.
Griffiths opens with Andy and Terry living in a treehouse that defies zoning laws and gravity. The plot is deliciously meta: they need to finish a book for their publisher, but their treehouse keeps distracting them with emergencies (a sea-monster invasion, a giant gorilla). Denton's illustrations do half the narrative work — kids who zone out on text will follow the visual punchlines just fine. It's the literary equivalent of a Rube Goldberg machine: every page sets up the next disaster. Explore our current copy of The 13-Storey Treehouse or browse more Fiction books at Patina.
The 39-Storey Treehouse — Andy Griffiths
Twenty-six new floors of chaos, including a room that turns you into whatever you draw — which goes exactly as badly as you'd expect.
By book three, Griffiths has abandoned any pretence of restraint. The once-upon-a-time machine allows for time-travel gags, and the Griffiths/Denton duo leans harder into self-referential humour (the characters argue about the illustrations in real time). The pacing is relentless — every chapter escalates the previous one's stakes, usually by adding more animals or explosions. If your kid liked the first book, this one doubles down on everything that worked. Explore our current copy of The 39-Storey Treehouse or browse more Fiction books at Patina.
The 52-Storey Treehouse — Andy Griffiths
Vegetarian sharks, a cloning machine, and a level that's just a giant nose — Griffiths is no longer asking "why?" and neither should you.
Book four is where the series stops pretending to have a coherent premise and embraces pure Id. The plot involves cloning mishaps and a quest to find Mr. Big Nose's missing nose (yes, really). Griffiths' genius is that the absurdity never feels random — each ridiculous event is the logical consequence of the previous ridiculous event. It's structured chaos, which is why reluctant readers inhale these books: the narrative momentum is unstoppable, even when it's propelled by flying cats. Explore our current copy of The 52-Storey Treehouse or browse more Fiction books at Patina.
The 65-Storey Treehouse — Andy Griffiths
Jill vanishes, Andy and Terry turn detective, and the treehouse sprouts a pet-grooming salon and a climate-controlled swamp — because why not.
Book five injects a mystery plot (neighbour Jill has disappeared) while maintaining the series' manic energy. The detective angle gives Griffiths room for noir parody, and Denton's illustrations play with shadow and magnifying-glass close-ups. It's still fundamentally a book about two idiots barely surviving their own home, but the missing-person stakes add just enough structure to keep older readers hooked. Explore our current copy of The 65-Storey Treehouse or browse more Fiction books at Patina.
Julius Zebra: Rumble with the Romans! — Gary Northfield
A zebra gets conscripted into gladiatorial combat in Ancient Rome — same absurdist energy, now with togas and historical footnotes.
Northfield's Julius is spiritually adjacent to Griffiths' work: a protagonist who has no business being in his own plot, surrounded by visual gags and anthropomorphic chaos. The Roman setting allows for puns about Latin and arena combat, and Northfield's cartooning (think Beano-meets-Horrible-Histories) shares Denton's kinetic line work. If your kid has exhausted the Treehouse series and needs something with similar pacing and a higher gladiator count, start here. Explore our current copy of Julius Zebra: Rumble with the Romans! or browse more Fiction books at Patina.
King Flashypants and the Evil Emperor: Book 1 — Andy Riley
A nine-year-old king with terrible ideas faces an evil emperor — it's swords-and-sorcery filtered through a sugar rush.
Riley (known for his darkly funny Bunny Suicides comics for adults) pivots to kids' lit with a medieval farce starring a hapless boy-king. The humour is less slapstick than Griffiths, more dry wit, but the pacing is just as frenetic and the illustrations just as dense. King Edwin's kingdom is perpetually on the brink of disaster, usually because Edwin made a spectacularly bad decision three chapters earlier. It's a solid next step for kids aging out of the Treehouse books but not ready for straight prose. Explore our current copy of King Flashypants and the Evil Emperor: Book 1 or browse more Fiction books at Patina.
Griffiths built a literary empire on the principle that kids will tolerate any amount of reading if you interrupt the text with enough drawings of butts. It's worked for over a decade, and the formula shows no signs of collapsing — much like the treehouse itself, which defies all known laws of physics and good taste. Shop all Fiction books at Patina Paperbacks →
Where can I buy secondhand Andy Griffiths Treehouse books in Sydney?
Patina Paperbacks stocks rotating preloved copies of the Treehouse series, shipping Australia-wide from our Sydney base. As of May 2026, we've got The 13-Storey, The 39-Storey, The 52-Storey, and The 65-Storey Treehouse in paperback. Check the Fiction collection for current stock — it turns over quickly because kids (and nostalgic adults) grab these fast.
Are the Treehouse books suitable for reluctant readers?
Honestly, yes — that's their superpower. Griffiths and Denton average one illustration per 1–2 pages, so visual learners can follow the plot through drawings alone. The chapters are short, the stakes are low (it's a treehouse, not a dystopia), and the humour is physical enough that you don't need a large vocabulary to get the jokes. Teachers use them as gateway drugs to longer chapter books.
What age group are Andy Griffiths' books aimed at?
The Treehouse series targets ages 7–12, though younger kids enjoy them as read-alouds and older readers (including adults) appreciate the meta-fictional gags. Griffiths' earlier Just! series skewed slightly older (9–13) with more gross-out humour and less illustration density. If your kid found Captain Underpants too scatological or Diary of a Wimpy Kid too mean-spirited, the Treehouse books hit a sweet spot of chaotic-but-not-cruel.
Do I need to read the Treehouse books in order?
Not strictly — each book is self-contained with the same basic premise (Andy and Terry live in a treehouse, deadlines loom, disaster ensues). That said, starting with The 13-Storey Treehouse gives you the origin story and introduces recurring characters like Jill and Mr. Big Nose. The running gags land harder if you've seen the earlier callbacks, but a kid picking up The 65-Storey Treehouse cold won't be lost.
What other Australian authors write similar illustrated chapter books?
Morris Gleitzman's Toad series (starting with Toad Rage, 1999) shares Griffiths' absurdist Australian sensibility, though with fewer illustrations. Paul Jennings — who co-wrote the Wormhole series with Griffiths — does short, punchy stories with twist endings (Unreal, 1985, is the classic entry point). For pure visual chaos, Anh Do's WeirDo series (2012–present) is the closest current equivalent, though it leans more toward school-based sitcom than treehouse anarchy.