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Cover of The sleepwalker (CHERUB #9)

The sleepwalker (CHERUB #9)

352 pages

A gritty, high-stakes espionage thriller where the darkest secrets are hidden within a fractured family.

What it feels like

Reading this installment feels like strapping into a high-speed interrogation where the psychological stakes are just as dangerous as the physical threats. The narrative moves with a propulsive, cinematic energy, pulling you through a gritty underworld of espionage, terrorism, and fractured family dynamics. Unlike typical teen adventures, the atmosphere here is steeped in a pragmatic, shadowy tension, grounding its explosive action in the very real trauma of its young characters. The prose is sharp and unpretentious, delivering punchy dialogue and relentless momentum without pausing for breath. It is a perfect fit for readers who want their action thrillers laced with moral ambiguity, where capable but flawed kids must navigate a deeply cynical adult world to uncover the truth.

Mood
  • tense
  • shadowy
  • high-stakes
  • psychologically fraught
Tone
  • pragmatic
  • gritty
  • suspenseful
  • urgent
Pace
propulsive
Themes
burden of secrets · loyalty versus morality · psychological trauma · coming of age under pressure
The writing
Direct, punchy, and unpretentious, the writing prioritizes relentless momentum and authentic, sharp-edged dialogue.
The arc
The journey shifts from the shock of a massive tragedy into a tense, psychologically complex investigation that tests the boundaries of loyalty.
Who it's for
Readers who crave high-octane, realistic espionage thrillers featuring morally complex, highly capable teenage protagonists.
Content notes
  • terrorism
  • mass casualty event
  • psychological distress
  • child abuse
  • violence

About the book

An airliner explodes over the Atlantic leaving 345 people dead. Crash investigators suspect terrorism, but they're getting nowhere. A distressed 12-year-old calls a police hotline and blames his father for the explosion. It could be a breakthrough, but there's no hard evidence.

Description from Open Library.

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