- Illustrated Chapter Books
- Ages 7–10
- Comedy

The Bad Guys in The Furball Strikes Back
Book 3 of 20 in The Bad GuysView the full series
A third episode that gives the team its first major supervillain problem in the form of evil genius Dr Marmalade. It keeps the accessible humour but adds more comic-book villain energy.
- Best for7–10
- FormatIllustrated
- Length144 pp
- Read aloud~58 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 have messed with the wrong guinea pig. Dr Marmalade may look small, fluffy and harmless, but he is also an evil mad scientist with a grudge, and he is ready to strike back. Mr Wolf, Mr Snake, Mr Shark and Mr Piranha suddenly find themselves facing more than an awkward mission: they have a proper villain to survive. The Furball Strikes Back gives the series a sharper comic-book shape, with a memorable antagonist, more danger and plenty of jokes about whether these supposedly reformed animals can keep behaving themselves under pressure. Aaron Blabey's exaggerated expressions and rapid visual pacing make the story feel bigger than its short page count, while the simple text load keeps it highly manageable. It is a strong continuation for readers who liked the first two books and want the stakes to get sillier and slightly more dramatic.
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
3 / 5 · Workable
Sensitive-child
3 / 5 · Mostly fine
Graphic intensity
2 / 5 · Mild
Best for
- Dog man fans
- Captain underpants fans
- Reluctant readers
- Funny animal comics
- Comic villains
Avoid if
- Prefers calm books
- Needs realistic stories
- Dislikes villain schemes
Particularly good for children who are…
- Reluctant reader
- Struggling with reading
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 kick is the guinea pig — the cutest, fluffiest, most innocent-looking creature in the book turning out to be the most evil. A seven-year-old reading it gets one of the great kid-book payoffs, plus the introduction of the villain the rest of the series will revolve around.
- Breaking the rules safely
- Having a nemesis
- Making a difference
- Trickery and cleverness
Why parents love it
The Bad Guys that introduces Dr Marmalade — the guinea-pig villain who becomes the series' recurring big-bad. The volume that gives the run its longer-arc plot engine. Worth reading specifically because everything after depends on it.
- 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.
- Bookshop.org ↗
- Waterstones ↗
- Amazon UK ↗
- Hive ↗
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