- Illustrated Chapter Books
- Ages 7–10
- Comedy

The Bad Guys in the Serpent and the Beast
Book 19 of 20 in The Bad GuysView the full series
The penultimate episode raises the stakes with serpent-and-beast mythology, big danger and strong series-end momentum. It is funny and readable, but firmly for readers nearing the finale.
- Best for7–10
- FormatIllustrated
- Length192 pp
- Read aloud~1 hr15 min
The vibe
What it’s like.
Style
- Conversational
- Comedic
- Onomatopoeic
Tone
- Funny
- Silly
- Irreverent
- Exciting
- Suspenseful
Themes
Experience meters
What’s it about?
The story.
The Bad Guys in the Serpent and the Beast is the nineteenth and penultimate episode of Aaron Blabey's long-running comic saga. The title signals how far the series has travelled from simple animal rescue missions: by now the gang are deep in a mythology of strange creatures, dangerous forces and escalating endgame stakes. Mr Wolf, Mr Snake, Mr Shark and Mr Piranha are still funny because their panic, bravado and bad instincts keep breaking through, but the story also carries the forward pull of a finale approaching. The book remains visually accessible, with short text, bold panels and immediate comic action, making it friendlier than its plot complexity might suggest. It is best for children who have stayed with the series and want the excitement of everything building towards resolution, rather than a casual standalone animal-comedy read.
Fit check
Right for your child?
Where it lands by age
- 1
- 3
- 5
- 7
- 9
- 11
- 13
- Best fit · 7–10
- Read aloud · 6–10
- Independent · 7–11
Prose load
Light
Visual support
Very high
Reluctant-reader friendly
Very
Read-aloud quality
Strong
Works well for
- Reading aloud
- Reading together
- Reluctant readers
Nothing in the book is likely to concern most parents. Safe to recommend without preview.
Bedtime suitability
2 / 5 · Better outside bedtime
Sensitive-child
3 / 5 · Mostly fine
Graphic intensity
2 / 5 · Mild
Best for
- Dog man fans
- Captain underpants fans
- Reluctant readers
- Series payoff
- Fast reads
Avoid if
- Prefers calm books
- Needs realistic stories
- Needs standalone books
- Very sensitive readers
Particularly good for children who are…
- Reluctant reader
- Struggling with reading
- Nightmares or fears
In the classroom
How it works in school.
The wildly funny Bad Guys series — a legendary reluctant-reader hook and classroom-library staple.
A book children love that happens to support school — never a stand-in for the texts a class is taught with. Reviewed for the classroom · June 2026.
Why it lands
Why they love it.
Why kids love it
The specific weight is Mr Snake at the centre — the team's grouchiest member finally getting a serious volume of his own, the morally complicated one revealed properly. A seven-year-old reading the penultimate book gets the cast member they've quietly liked most given the spotlight.
- Breaking the rules safely
- Having a nemesis
- Making a difference
- Surviving danger
Why parents love it
The penultimate Bad Guys — Mr Snake, the most morally interesting of the team, takes centre stage just before the finale. Best read in sequence; the character payoff depends on years of buildup. Strong setup for the closing volume.
- Shared humour
- Quick to read
- Conversation starter
In the series
The Bad Guys.
20 books · open the series →
About the author & illustrator
Aaron Blabey.
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.
Buy or borrow
Pick up a copy.
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- Waterstones ↗
- Amazon UK ↗
- Hive ↗
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