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Cover of Bone Head: Guardian of the Underworld
Illustrated · ages 8–12

Bone Head: Guardian of the Underworld

Written and illustrated by Jamie Gregory

Top giftableEndlessly rereadable

A laugh-out-loud, heavily illustrated diary from an over-confident skeleton guardian of the Greek underworld who gets demoted to dog-sitting Cerberus. Anarchic two-colour comic chaos for fans of Bunny vs Monkey and Loki.

  • Best for8–12
  • FormatIllustrated
  • Length256 pp
  • Read aloud~1 hr40 min
Where to buyPaperback
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The vibe

What it’s like.

Style

  • Comedic
  • Conversational
  • Epistolary

Tone

  • Funny
  • Irreverent
  • Silly
  • Adventurous

Themes

On the pagegreek underworld, skeleton, cerberus, hades, diary format, greek mythology

Experience meters

Energy5/ 5
Humour5/ 5
Scariness2/ 5
Peril2/ 5
Wonder3/ 5
Cosiness2/ 5
Emotional intensity2/ 5
Conceptual intensity2/ 5

What’s it about?

The story.

The underworld is a dangerous place, full of fiery landscapes, marauding dragons and creatures you really wouldn't want to meet, but none of that bothers Demise. Better known as Bone Head, he's a skeleton guardian who is quite sure he's the best there has ever been, and he's desperate to prove it to Hades himself. When one of his attention-seeking schemes goes catastrophically wrong and takes out the gates of Hades' fortress, Bone Head and his long-suffering supervisor Mort are demoted to the worst job going: dog-sitting Cerberus, the famously ferocious three-headed hound. Written as Bone Head's own diary, with his boss Mort scribbling sarcastic corrections in green ink on every page, Jamie Gregory's fully illustrated debut is a riot of two-colour comic art, terrible decisions and Greek-myth mayhem. Fast, silly and packed with visual jokes, it's an ideal reluctant-reader adventure for fans of Bunny vs Monkey and Loki.

Fit check

Right for your child?

Where it lands by age

Aimed at 8 to 12s reading independently, with heavy illustration and short diary entries that carry reluctant readers through its 256 pages. Works well read aloud from about 8 for the jokes and character voices.

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

Prose load

Light

Visual support

Very 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

2 / 5 · Better outside bedtime

Sensitive-child

4 / 5 · Good fit

Graphic intensity

1 / 5 · None

Best for

  • Reluctant readers
  • Funny illustrated
  • Greek mythology
  • Comic diary
  • Read aloud

Avoid if

  • Wants gentle bedtime
  • Prefers prose only

Particularly good for children who are…

  • Reluctant reader
  • Low self esteem

Why it lands

Why they love it.

Why kids love it

Bone Head is hilariously sure he's brilliant while getting everything wrong, and Mort's grumpy green scribbles all over his diary are laugh-out-loud funny. Dog-sitting a giant three-headed hell-hound goes exactly as badly as you'd hope, and the pictures are everywhere.

  • Trickery and cleverness
  • The underdog winning
  • Breaking the rules safely

Why parents love it

The diary-plus-annotations format and two-colour art on every page make this an easy win for reluctant readers, and it slips in real Greek myth alongside the chaos. A big, funny page-count that confident younger readers will race through.

  • Shared humour
  • Quick to read
  • Indie gem discovery

About the author & illustrator

Jamie Gregory.

JG

Jamie Gregory

Writer & illustrator · United Kingdom

Jamie Gregory is a British author-illustrator who grew up in south-west London and now lives in Surrey with his family. Alongside his own books he designs jackets for many bestselling children's authors, and that eye for visual comedy runs right through his debut, Bone Head: Guardian of the Underworld. Written as the diary of Demise, an over-confident skeleton guardian of the Greek underworld who is demoted to dog-sitting the three-headed hound Cerberus, it is a riot of two-colour comic art, terrible decisions and Greek-myth mayhem, complete with his long-suffering supervisor Mort scribbling sarcastic corrections in green ink on every page. Fast, silly and packed with visual jokes, Gregory's fully illustrated storytelling is squarely aimed at reluctant readers and fans of Bunny vs Monkey and Loki. A lively new name in the highly illustrated funny-fiction space for readers of eight and up.

More from Jamie Gregory

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Last reviewed · July 2026Suggest a correctionHow we recommend

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