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Cover of The 13-Storey Treehouse

Age rating and parents' guide:The 13-Storey Treehouse

by Andy Griffiths & Terry Denton

Ages 9–11

The 13-Storey Treehouse by Andy Griffiths & Terry Denton is best for children aged 9–11. It has mild violence, nothing scary, no romance and no bad language.

Andy and Terry live in an incredible multi-level treehouse packed with amazing inventions, from a see-through swimming pool and a bowling alley to a giant marshmallow machine. The two friends need to write their next book, but absurd distractions keep getting in the way, including flying cats, giant sea monsters, and unruly monkeys. A lighthearted choice for sparking laughter and lively conversation.

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Content ratings

How much of each a parent can expect, from none to strong.

Violence
Mild
Scary moments
None
Romance
None
Bad language
None
Dhiraj Bodade

Content checked by Dhiraj Bodade, co-founder of Bookstaken, on 21 September 2026.

At a glance

  • ★Early chapter book
  • ★Part of the Treehouse series
  • ★Easy to get into from the first page
  • ★Plenty of illustrations
  • ★Emotionally light
  • ★A good pick for reluctant readers

Great for kids who like

  • Humor & Comedy
  • Animals
  • Science

Reading mood

  • Funny

Good to talk about

  • Science
  • Robots & inventions

Books like The 13-Storey Treehouse

Similar stories for the same ages, none more intense than this one should be for its youngest readers.

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    Ages 9–11

    Frank Einstein

    by Jon Scieszka

    Frank Einstein is a kid genius who loves tinkering, inventing, and exploring how the physical world works. After a bolt of lightning strikes his garage laboratory, two self-assembled robots—Klink and Klank—spring to life with very different personalities. A friendly starting point for exploring science through everyday questions.

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  • Cover of Malgudi Adventures: Classic Tales for Children

    Ages 9–13

    Malgudi Adventures: Classic Tales for Children

    by R. K. Narayan

    Set in the bustling, fictional South Indian town of Malgudi, this collection brings together charming tales of everyday childhood, curious animals, and gentle misadventures. Young readers meet unforgettable characters like Swami and his mischievous school friends as they navigate classroom troubles, family dynamics, and unexpected encounters, including a memorable tiger on the loose. Keeps curiosity alive and invites readers to imagine what comes next.

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  • Cover of Cricket for the Crocodile

    Ages 6–11

    Cricket for the Crocodile

    by Ruskin Bond

    Ranji and his friends love playing cricket on the riverbank, but Nakoo the grumpy crocodile is not pleased when their games disturb his sunbathing. When an errant cricket ball strikes Nakoo, a hilarious chase ensues, causing chaos for players, bank clerks, and spectators alike. A lively choice for readers who enjoy movement, teamwork, and determination.

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  • Cover of Diary of a Wimpy Kid

    Ages 9–11

    Diary of a Wimpy Kid

    by Jeff Kinney

    Greg Heffley is starting middle school, where undersized weaklings like him share the hallways with kids who are taller, meaner, and already shaving. To survive, he records his daily misadventures, family annoyances, and flawed plans for popularity in an illustrated journal. Offers space for thoughtful conversations about empathy and difficult choices.

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  • Cover of The World's Worst Children

    Ages 9–11

    The World's Worst Children

    by David Walliams

    Meet ten hilariously awful boys and girls in this collection of cheeky cautionary tales. From Dribbling Drew, whose excessive drool causes catastrophic chaos, to Peter Pew, who simply refuses to wash, each child showcases a delightfully dreadful habit that spirals out of control. Its playful humor makes reading aloud and sharing a laugh enjoyable.

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  • Cover of Malgudi Schooldays: The Adventures of Swami and His Friends

    Ages 8–12

    Malgudi Schooldays: The Adventures of Swami and His Friends

    by R. K. Narayan

    Ten-year-old Swami navigates life in the fictional South Indian town of Malgudi during the colonial era. Alongside his loyal circle of friends, Swami faces strict schoolteachers, dreads homework, dreams of cricket matches, and occasionally finds himself swept into the larger world of local strikes and protests. A warm way to explore friendship, kindness, and seeing other perspectives.

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On these book lists

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Questions parents ask

Q: What age is The 13-Storey Treehouse for?
The 13-Storey Treehouse suits children aged 9–11. It is an early chapter book: easy to get into from the first page, plenty of illustrations.
Q: Is The 13-Storey Treehouse appropriate for a 9 year old?
Yes. Bookstaken rates it for ages 9–11. It has mild violence, nothing scary, no romance and no bad language.
Q: Is The 13-Storey Treehouse part of a series?
Yes, it belongs to the Treehouse series. If your child enjoys it, the other Treehouse books are the easiest next step.
Q: What should my child read after The 13-Storey Treehouse?
Try Frank Einstein, Malgudi Adventures: Classic Tales for Children and Cricket for the Crocodile. They share the same kind of story and suit the same ages.
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