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HarperCollins Children's Books · MMXIX
You Won't Believe This
Adam Baron
Chapter · ages 9–12

You Won't Believe This

Written by Adam Baron · Illustrated by Benji Davies

Book 2 of 4 in Cymbeline IglooView the full series

Top giftableAdults love it too

Someone is doing terrible things to Cymbeline's favourite teacher, and his best friend Veronique's beloved grandmother is dangerously ill - carrying a devastating secret about her escape from Vietnam. A hilarious mystery that turns, without warning, into a heartbreaking story about love and loss.

  • Best for9–12
  • FormatChapter
  • Length400 pp
  • Read aloud~5 hr40 min

The vibe

What it’s like.

Style

  • Conversational
  • Comedic

Tone

  • Funny
  • Warm
  • Heartwarming
  • Bittersweet
  • Thought provoking

Themes

On the pagefriendship, grandparents, refugees, vietnam, hospital, family secret, school

Experience meters

Energy3/ 5
Humour4/ 5
Scariness1/ 5
Peril2/ 5
Wonder2/ 5
Cosiness2/ 5
Emotional intensity4/ 5
Conceptual intensity3/ 5

What’s it about?

The story.

Cymbeline Igloo is back, and life is complicated. Someone is playing horrible tricks on Mrs Martin, his favourite teacher, and Cym is determined to unmask them. But the bigger worry is his best friend Veronique: her adored grandmother, Nanai, is seriously ill in hospital, and holds a secret she has never told anyone - about arriving in Britain as a child refugee from Vietnam, and the twin sister she lost on the terrifying journey by boat. As Cym blunders cheerfully through detective work, football and the usual embarrassments, he finds himself drawn into a story far bigger and sadder than he expected. Adam Baron's second Cymbeline book is every bit as funny as the first, with a narrator who makes readers laugh out loud even as the tears well up. Beneath the jokes lies a tender, powerful exploration of family history, displacement and the grief that can bind people together. Works perfectly as a standalone.

Fit check

Right for your child?

Where it lands by age

Best for 9-12s reading alone, and a rewarding read-aloud from about 8. The comedy suits confident younger readers; the threads of a grandmother's illness, death and a refugee past give it emotional depth better appreciated by older children.

  • 1
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  • 5
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  • 9
  • 11
  • 13
  • Best fit · 9–12
  • Read aloud · 8–11
  • Independent · 9–12

Prose load

Moderate

Visual support

Low

Reluctant-reader friendly

Very

Read-aloud quality

Strong

Works well for

  • Reading aloud
  • Gift-buying
  • Reluctant readers
Moderate sensitivity3 content warnings

Preview before sharing if a child is sensitive to: grief, death of character, illness or disability.

Bedtime suitability

2 / 5 · Better outside bedtime

Sensitive-child

2 / 5 · Use judgement

Graphic intensity

1 / 5 · None

Best for

  • Funny and moving
  • Family stories
  • Builds empathy
  • Cultural representation

Avoid if

  • Wants gentle bedtime
  • Sensitive to bereavement
  • Sensitive to illness

Particularly good for children who are…

  • Illness in family
  • Bereavement
  • Immigration or new country

Why it lands

Why they love it.

Why kids love it

Cym is on the case again - hunting whoever is tormenting Mrs Martin - while helping Veronique through the scariest thing yet. Kids love the daft jokes and detective mission, then find themselves genuinely moved by Nanai's incredible, heartbreaking story.

  • Being a detective
  • Friendship and belonging
  • Making a difference
  • Being understood finally

Why parents love it

Baron folds a real history - the Vietnamese boat people - into a warm, funny mystery, giving children a way into displacement and loss without preaching. The voice is irresistible aloud, and the emotional turn lands hard and true.

  • Shared humour
  • Conversation starter
  • Great writing
  • Cultural representation

In the series

Cymbeline Igloo.

4 books · open the series →

About the creators

About the creators.

BD

Benji Davies

Illustrator · United Kingdom

Benji Davies is a British author-illustrator best known for The Storm Whale (2013) and its sequels The Storm Whale in Winter and Grandad's Island, quietly emotional picture books with a distinctive painterly, slightly retro visual style and a Scandinavian-fishing-village setting that has become one of his signatures. Davies's work tends to land in the gentle-but-serious end of the picture-book market, often handling loneliness, family change, loss and the comfort of small communities. He also illustrates for other authors (the Bizzy Bear board books) and works in animation. A reliable bedtime and gift-shelf picture-book maker for ages 3–7, with particular strength in emotional weight done lightly.

More from Benji Davies

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.

Last reviewed · July 2026Suggest a correctionHow we recommend

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