- Illustrated Chapter Books
- Ages 7–10
- Comedy

The 78-Storey Treehouse
Book 6 of 13 in The Treehouse SeriesView the full series
A sixth Treehouse adventure that turns the boys' impossible home into a movie set, with all the disruption, ego and nonsense that implies. It keeps the series' heavy visual support and joke-a-minute pacing while adding a Hollywood-style hook.
- Best for7–10
- FormatIllustrated
- Length384 pp
- Read aloud~5 hr25 min
The vibe
What it’s like.
Style
- Conversational
- Comedic
- Onomatopoeic
Tone
- Funny
- Silly
- Absurdist
- Irreverent
- Exciting
Themes
Experience meters
What’s it about?
The story.
Andy and Terry's treehouse has now reached seventy-eight storeys, adding yet more ridiculous floors to an already impossible home. This time, the biggest disruption is not just the new rooms but the arrival of a film crew: their treehouse life is being turned into a movie, and everyone suddenly has opinions about acting, fame, special effects and who should be in charge. The sixth Treehouse book keeps the series' core appeal: manic narrator energy, dense cartoon illustrations, impossible inventions, huge jokes and a constant feeling that the book is being assembled while you read it. The film-making setup gives the chaos a fresh shape, while still leaving plenty of room for random rooms, sudden digressions and Terry Denton's page-filling visual gags. It is especially good for readers who find conventional chapter books too text-heavy but enjoy long, funny books they can race through.
Fit check
Right for your child?
Where it lands by age
- 1
- 3
- 5
- 7
- 9
- 11
- 13
- Best fit · 7–10
- Read aloud · 6–10
- Independent · 7–11
Prose load
Moderate
Visual support
Very high
Reluctant-reader friendly
Very
Read-aloud quality
Strong
Works well for
- Reading aloud
- Reading together
- Reluctant readers
Nothing in the book is likely to concern most parents. Safe to recommend without preview.
Bedtime suitability
2 / 5 · Better outside bedtime
Sensitive-child
4 / 5 · Good fit
Graphic intensity
1 / 5 · None
Best for
- Diary of a wimpy kid fans
- Captain underpants fans
- Silly humour
- Visual readers
- Film fans
Avoid if
- Prefers realistic stories
- Prefers calm books
- Needs tight plot
- Dislikes shouting
Particularly good for children who are…
- Reluctant reader
- Struggling with reading
- Neurodiversity or learning differences
- Interested in art and creativity
In the classroom
How it works in school.
The anarchic, hugely funny Treehouse series — a legendary reluctant-reader hook and classroom-library staple.
A book children love that happens to support school — never a stand-in for the texts a class is taught with. Reviewed for the classroom · June 2026.
Why it lands
Why they love it.
Why kids love it
The specific delight is Hollywood arriving — a film crew turns up to make a movie of Andy and Terry's lives, and the treehouse becomes a film set, with all the egos and disasters that implies. The Treehouse where the boys' fame becomes the joke.
- Adventure and freedom
- Having a secret base
- Secret world
- Trickery and cleverness
Why parents love it
The sixth Treehouse — a film crew arrives to film the boys' lives, which gives the chaos a fresh shape. The Treehouse spoof of celebrity culture, played for seven-year-olds. Reliable late-mid volume.
- Shared humour
- Quick to read
- Conversation starter
In the series
The Treehouse Series.
13 books · open the series →
About the creators
About the creators.
If you liked this
Three ways out of this book.
If you liked this, try…
Lateral matches. Same shelf, different texture.
Come into this from…
Easier or preparing reads — perfect lead-ins.
Where to go next…
Escalation reads — a step up in scale, silliness, or stakes.
More like this…
Books that share themes and topics with this one.
Buy or borrow
Pick up a copy.
- Bookshop.org ↗
- Waterstones ↗
- Amazon UK ↗
- Hive ↗
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