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Cover of Cosmic

Age rating and parents' guide:Cosmic

by Frank Cottrell Boyce

Ages 9–14

Cosmic by Frank Cottrell Boyce is best for children aged 9–14. It has no violence, a few mildly scary moments, no romance and no bad language.

Twelve-year-old Liam looks like an adult and accidentally joins a group of children traveling into space.

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Content ratings

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

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

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

At a glance

  • ★Novel
  • ★A steady start that picks up quickly
  • ★Mostly text
  • ★Emotionally light
  • ★A good pick for reluctant readers

Great for kids who like

  • Science Fiction & Space
  • Space

Reading mood

  • Curious

Good to talk about

  • Science Fiction & Space

Books like Cosmic

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

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    Ages 9–14

    Hidden Figures (Young Readers' Edition)

    by Margot Lee Shetterly

    Four Black women mathematicians overcome racism and sexism to help power NASA’s early space missions.

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  • Cover of George's Secret Key to the Universe

    Ages 9–11

    George's Secret Key to the Universe

    by Lucy & Stephen Hawking

    George travels through cosmic portals with scientist Eric, exploring space while protecting a powerful supercomputer from danger.

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  • Cover of The Girl Who Drank the Moon

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    The Girl Who Drank the Moon

    by Kelly Barnhill

    Luna is accidentally fed moonlight as a baby and grows into powerful magic while uncovering her town’s hidden truth.

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  • Cover of Zita the Spacegirl

    Ages 9–11

    Zita the Spacegirl

    by Ben Hatke

    Zita leaps through a portal to rescue her abducted friend and becomes an unlikely hero on a strange planet.

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  • Cover of The Invention of Hugo Cabret

    Ages 9–14

    The Invention of Hugo Cabret

    by Brian Selznick

    Orphan Hugo secretly maintains a Paris station’s clocks while repairing an automaton connected to filmmaker Georges Méliès.

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  • Cover of Counting on Katherine

    Ages 6–11

    Counting on Katherine

    by Helaine Becker

    Katherine Johnson’s lifelong love of numbers leads her to calculate the trajectories that send astronauts safely into space.

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Questions parents ask

Q: What age is Cosmic for?
Cosmic suits children aged 9–14. It is a novel: a steady start that picks up quickly, mostly text.
Q: Is Cosmic appropriate for a 9 year old?
Yes. Bookstaken rates it for ages 9–14. It has no violence, a few mildly scary moments, no romance and no bad language.
Q: What should my child read after Cosmic?
Try Hidden Figures (Young Readers' Edition), George's Secret Key to the Universe and The Girl Who Drank the Moon. They share the same kind of story and suit the same ages.
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