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Cover of Montgomery Bonbon: Mystery at the Manor
Illustrated · ages 9–12

Montgomery Bonbon: Mystery at the Manor

Mystery at the Manor

Written by Alasdair Beckett-King · Illustrated by Claire Powell

Book 3 in Montgomery BonbonView the full series

Top giftableAdults love it too

A retired master thief's diamond vanishes, his butler turns up dead, and four suspicious protégés all have something to hide. A classic country-house whodunit with a hedge maze full of monkeys.

  • Best for9–12
  • FormatIllustrated
  • Length288 pp
  • Read aloud~4 hr5 min
Where to buyPaperback
WaterstonesIn stock
£7.99
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The vibe

What it’s like.

Style

  • Comedic
  • Conversational

Tone

  • Funny
  • Whimsical
  • Cosy

Themes

On the pagedetective, murder mystery, jewel theft, disguise, clues

Experience meters

Energy3/ 5
Humour4/ 5
Scariness2/ 5
Peril2/ 5
Wonder2/ 5
Cosiness4/ 5
Emotional intensity2/ 5
Conceptual intensity2/ 5

What’s it about?

The story.

Bonnie Montgomery is invited to Adderstone Manor by Fergus Croke, a retired master thief whose most prized diamond has just gone missing, and who suspects one of his four scheming protégés of stealing it. Then Croke's loyal butler is found dead in the grounds, and what began as a stolen-jewel puzzle becomes a full-blown murder case. As Montgomery Bonbon, Bonnie must navigate hidden identities, tangled motives, secret passages and a hedge maze overrun with monkeys to expose the truth. Alasdair Beckett-King leans into the grand country-house mystery tradition for the third Bonbon case, and Claire Powell's illustrations relish every eccentric suspect. It is the series at its most gleefully classic: fair-play clues, a house full of liars, and a solution that is complicated enough to satisfy while staying perfectly followable for young detectives keen to beat Bonbon to the answer.

Fit check

Right for your child?

Where it lands by age

Best for independent readers of about 9-12, and a treat read aloud to 7-10s who like puzzling out suspects together. Deaths are handled with cosy comic lightness, keeping it suitable for sensitive readers who enjoy a proper mystery.

  • 1
  • 3
  • 5
  • 7
  • 9
  • 11
  • 13
  • Best fit · 9–12
  • Read aloud · 7–10
  • Independent · 8–11

Prose load

Moderate

Visual support

High

Reluctant-reader friendly

Very

Read-aloud quality

Strong

Works well for

  • Reading aloud
  • Reading together
  • Gift-buying
  • Reluctant readers
Low sensitivityNo content warnings

Nothing in the book is likely to concern most parents. Safe to recommend without preview.

Bedtime suitability

3 / 5 · Workable

Sensitive-child

4 / 5 · Good fit

Graphic intensity

1 / 5 · None

Best for

  • Mystery fans
  • Funny stories
  • Detective stories
  • Cosy mysteries

Avoid if

  • Wants gritty realism
  • Dislikes puzzles

Why it lands

Why they love it.

Why kids love it

A stolen diamond, a dead butler, four suspicious suspects and a hedge maze full of monkeys make Adderstone Manor the perfect place for a mystery. Uncovering everyone's hidden identity as Montgomery Bonbon, and spotting who's lying before the reveal, is enormously satisfying.

  • Being a detective
  • Trickery and cleverness
  • Having a wise mentor

Why parents love it

The third case is the most traditionally Christie-shaped: a grand house, a locked circle of suspects and a genuinely clued solution. It's clever without being cruel, funny throughout, and short chapters plus lively artwork keep less confident readers moving.

  • Shared humour
  • Great writing
  • Quick to read

In the series

Montgomery Bonbon.

5 books · open the series →

About the creators

About the creators.

AB

Alasdair Beckett-King

Writer · United Kingdom · b. 1984

Alasdair Beckett-King is a British comedian, writer and animator, well known for the sketches on his YouTube channel, who has turned his love of classic whodunits into one of the freshest mystery series for young readers. His Montgomery Bonbon books follow ten-year-old Bonnie Montgomery, who solves murders disguised as a moustachioed, vaguely European gentleman-detective, aided by her ice-cream-van-driving Grampa Banks. Illustrated throughout by Claire Powell, the series is genuinely fair-play crime fiction: real clues, planted red herrings and a solution young detectives can crack for themselves, all stitched through with a joke on nearly every page. From a locked-room museum theft to a storm-lashed island and a murder committed live on stage, Beckett-King serves up Knives Out and Poirot for a new generation, teaching children how detective fiction actually works while keeping them laughing to the final reveal.

More from Alasdair Beckett-King
CP

Claire Powell

Illustrator · United Kingdom

Claire Powell is a British illustrator best known to UK children's-book readers as the visual partner of Suzy Senior on the Octopants picture-book series, Octopants and Octopants: The Missing Pirate Pants, gleefully silly rhyming picture books about an underwater pants problem. Powell's style is bright, character-driven and warmly cartoony, well-matched to read-aloud silly rhyming text. She also illustrates extensively for other UK picture-book authors. A reliable picture-book illustrator for ages 3–6 in the funny-bone rhyming-picture-book register.

More from Claire Powell

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