- Chapter Books
- Ages 10–13
- Fantasy
The Monster in the Hollows
Book 3 in The Wingfeather SagaView the full series
The Igibys reach the safety of the Green Hollows, but safety comes at a price: Kalmar now wears the face of a Fang, and the Hollowsfolk hate him for it. A quieter, mystery-driven volume about belonging, prejudice and a family fighting to stay whole.
- Best for10–13
- FormatChapter
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The vibe
What it’s like.
Style
- Literary
- Comedic
Tone
- Adventurous
- Suspenseful
- Bittersweet
- Heartwarming
- Exciting
Themes
Experience meters
What’s it about?
The story.
Having escaped Skree, the Wingfeather family finally reaches the Green Hollows, one of the last free kingdoms holding out against Gnag the Nameless. But there is no easy welcome. Kalmar's transformation has left him looking like the very Fangs the Hollowsfolk have fought for years, and the children face suspicion, cruelty and the whispered fear of a monster prowling the edge of the Blackwood. As Janner struggles with his sworn duty to protect his brother, secrets long buried in the Hollows begin to surface, and the family must make a painful sacrifice to earn the trust of their new home. Andrew Peterson's third Wingfeather book slows the chase to tell a deeper, mystery-laced story about prejudice, belonging and what it means to stand by someone the world has judged. Illustrated by Joe Sutphin, it builds through betrayals and revelations to a bittersweet reunion that reshapes everything the family thought they knew.
Fit check
Right for your child?
Where it lands by age
Aimed at 10-13s and best read in sequence, with themes of prejudice and belonging that reward the slightly older reader. It reads aloud well from about 9, but the emotional weight and ongoing story make it too much for the youngest.
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- Best fit · 10–13
- Read aloud · 9–12
- Independent · 10–13
Prose load
Moderate
Visual support
Low
Reluctant-reader friendly
Workable
Read-aloud quality
Strong
Works well for
- Reading aloud
- Gift-buying
Preview before sharing if a child is sensitive to: violence, scary imagery, bullying, war or conflict.
Bedtime suitability
2 / 5 · Better outside bedtime
Sensitive-child
2 / 5 · Use judgement
Graphic intensity
2 / 5 · Mild
Best for
- Epic fantasy
- Read aloud
- Family story
- Belonging and acceptance
Avoid if
- Wants standalone story
- Scared of monsters
Particularly good for children who are…
- Being bullied
Why it lands
Why they love it.
Why kids love it
Kalmar looks like the enemy now, and the Hollowsfolk won't forgive him for it. Watching Janner defend his brother against a whole town, while a real monster lurks in the woods, makes this the most emotional mystery of the saga so far — and the twists at the end hit hard.
- Being understood finally
- Family belonging
- Surviving danger
- The underdog winning
- Being special or chosen
Why parents love it
Peterson swaps the chase for a searching story about prejudice and belonging, giving families rich ground to talk about judging others by appearance. The mystery and the painful sacrifice at its heart make it the most thoughtful book in the series so far.
- Great writing
- Conversation starter
- Shared humour
In the series
The Wingfeather Saga.
4 books · open the series →
About the creators
About the creators.
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.
More like this…
Books that share themes and topics with this one.
