Impossible Creatures by Katherine Rundell cover

Impossible Creatures

by Katherine Rundell

Award Winner/Nominee

A boy discovers a secret archipelago of mythical creatures and, alongside a new companion, must fight to save it from a creeping, deadly threat.

$7.98 on AmazonRead our full review

At a glance

First published2023
SettingScotland and a hidden magical Archipelago
AudienceMiddle grade (8-12)
ISBN0593809890
Katherine Rundell

About the Author

Katherine Rundell

1 book reviewed

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Impossible Creatures

by Katherine Rundell

LuvemBooks Verdict

Best for

Middle-grade and adult readers aged 10 and up who want a serious, fully realised fantasy series with genuine moral stakes, a richly illustrated dual-protagonist quest, and a world dense with mythological creatures from global traditions.

Worth it if

You're ready to invest in an ambitious new fantasy trilogy that arrives with major critical validation on both sides of the Atlantic, and you want a book that pairs fast-moving adventure with real thematic weight and over 60 illustrations that bring its world to life.

Skip if

You're seeking the slow, contemplative world-immersion of Tolkien — critics note that action and momentum are Rundell's primary strengths, and the novel's grand themes are worn conspicuously enough that Kirkus flagged it as "more than a little full of itself."

Kirkus Reviews awarded the book a starred verdict and a place on its Best Books of 2024 list, calling it "an epic fantasy with timeless themes and unforgettable characters," while the New York Times noted it has prompted comparisons to Tolkien, Lewis, and Pullman, though it identified action rather than awe as Rundell's primary strength.

An epic fantasy with timeless themes and unforgettable characters.

kirkusreviews.com

Action, not awe, is Katherine Rundell's strong suit — the book has prompted comparisons to Tolkien, Lewis and Pullman.

nytimes.com
Sources: Kirkus Reviews, The New York Times
4.5from 3,273 Amazon ratings— reader ratings, not a LuvemBooks score

Preview the book

Impossible Creatures by Katherine Rundell front cover
Front cover featuring colorful artwork of figures among fantastical creatures and vibrant landscapes in orange, blue, and green tones.
Interior illustration: a giant octopus with writhing tentacles emerges from turbulent water, embodying an impossible creature.
Front cover featuring vibrant orange and blue artwork with a red mythical creature and decorative border pattern.
Interior illustration spread showing a winged creature in a fantastical forest setting, accompanying narrative text about adventure and wonder.
Look inside the bookPreview the actual pages, via Google Books

Ask LuvemBooks

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Impossible Creatures is Katherine Rundell's first full-fantasy novel and the opening volume of a planned trilogy, following Christopher Forrester and Mal Arvorian on an urgent quest across a hidden magical Archipelago to save the world's glimourie — and the impossible creatures that depend on it — from extinction. A #1 New York Times bestseller endorsed by Philip Pullman and Rick Riordan, it has earned a Waterstones Book of the Year in the UK, a starred Kirkus Reviews verdict, and Wall Street Journal praise as "a glorious fantasy adventure… brimming with intelligence, inventiveness and generosity of heart." It is the ideal choice for middle-grade and adult readers ready to invest in a serious, fully realised fantasy world — though readers seeking slow, contemplative world-immersion should note that momentum, not wonder, is Rundell's primary gear.
Is it worth reading?
By virtually every major critical measure, yes. Impossible Creatures is a #1 New York Times bestseller that won the Waterstones Book of the Year in the UK, earned a starred Kirkus Reviews verdict and a place on its Best Books of 2024 list, and was named one of the Wall Street Journal's Best Children's Books of the Year. Philip Pullman described Rundell as "a writer with an utterly distinctive voice and a wild imagination," and Rick Riordan recommended it heartily to readers of all ages. The key caveat is pacing: readers who want the slow, languorous world-immersion of Tolkien may find that Rundell prioritises momentum over contemplative wonder, and Kirkus also flagged that the novel can be "more than a little full of itself" in the way it wears its grand themes.
Similar books
Readers drawn to Impossible Creatures will find natural companions across a range of classic and contemporary fantasy. Philip Pullman's The Golden Compass is the most direct touchstone — Kirkus Reviews noted that Christopher and Mal's dual-protagonist structure is modelled on Lyra and Will from Pullman's His Dark Materials, with a similar sacrifice of innocence for experience. C. S. Lewis's The Magician's Nephew sits in the same Oxford children's fantasy tradition that Rundell consciously inhabits. For mythologically inventive middle-grade fantasy, Roshani Chokshi's Aru Shah and the End of Time offers a similar spirit, and Rick Riordan — who enthusiastically recommended Impossible Creatures — makes it a natural bridge to The Hobbit by J. R. R. Tolkien for readers ready to go deeper into the epic fantasy tradition. For something quieter but with a similarly powerful sense of the magical and untamed, David Almond's Skellig rewards the same reader.
Who should read this?
Impossible Creatures is best suited to committed middle-grade readers aged 10 and up who are ready for a serious, fully realised fantasy series with real moral stakes and a large cast. It is particularly strong for lovers of magical creatures, fairy tales, and quest-driven narratives — Rick Riordan singled out animal-lovers, lovers of magic, and fans of fairy tales as its core audience. Adults who read widely in children's fantasy will find it equally rewarding. Readers who want slow, contemplative world-building in the Tolkien mould, or who are wary of epic fantasy that announces its grand themes boldly, may want to adjust expectations.
What age is it for?
Best for ages 10 and up. Kirkus Reviews places the book squarely in the 10–16 age range, and the publisher recommends it from Grade 5 onward. The novel's large cast, dense creature-lore, quest mythology, and themes of sacrifice and moral conviction suit confident readers who are ready to track accumulating complexity; younger readers at the lower end of the range may find it demanding. Adults who enjoy children's fantasy will find it equally rewarding — Rick Riordan recommended it to readers of all ages.
About Katherine Rundell
Katherine Rundell is an English author and academic.
Does the book have illustrations?
Yes — Impossible Creatures is extensively illustrated. Ashley Mackenzie contributed more than 60 illustrations throughout the book, along with a map of the Archipelago and a full bestiary of the magical creatures that populate the islands. This visual and physical depth was specifically praised by critics and contributes significantly to the world's tangibility. The Yearling Deluxe paperback edition also features stenciled edges.
Has it won any awards?
Impossible Creatures has an impressive awards record. In the UK it won the Waterstones Book of the Year; it debuted as a #1 New York Times bestseller in the US; Kirkus Reviews awarded it a starred verdict and placed it on its Best Books of 2024 list; and the Wall Street Journal named it one of the Best Children's Books of the Year. Philip Pullman and Rick Riordan have both publicly endorsed it, and it earned major critical recognition on both sides of the Atlantic upon publication.
Summarize this book

Summarize this book

Impossible Creatures opens when Christopher Forrester, a boy from the ordinary world, travels to Scotland to stay with his grandfather, discovers a forbidden hill, and learns that his family are guardians of a passage to the Archipelago — a cluster of unmapped islands where magical creatures have thrived for thousands of years, sustained by glimourie, the world's magic flowing from the Glimourie Tree. There he meets Mal Arvorian, a girl from the islands who carries a flying coat and a baby griffin and is being pursued by a murderer. Together they race across the Archipelago — consulting sphinxes, battling kraken, negotiating with dragons, and travelling alongside a part-nereid woman, a ratatoska, and a Berserker — to reach the Immortal, the only being capable of reversing the draining of the glimourie. If they fail, magic and the creatures that depend on it will be lost entirely.

Follow up

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Age & Reading Level

Recommended age

Ages 8–12

Reading level

Middle grade

Content to know about

peril and pursuit — a murderer hunts the protagonists
high-stakes creature and world extinction themes

Best for: Ages 10+ — large cast, accumulating mythology, and themes of sacrifice suit confident middle-grade readers; the publisher and Kirkus place the floor at Grade 5 / age 10

Skip if you want slow, contemplative world-immersion over action-driven momentum

Editorial Review

Impossible Creatures is a #1 New York Times bestselling middle-grade fantasy novel by Katherine Rundell, illustrated by Ashley Mackenzie, in which two children — Christopher Forrester and Mal Arvorian — race across a hidden magical Archipelago to stop the fading of the world's magic and save its impossible creatures from extinction. The Wall Street Journal named it one of the Best Children's Books of the Year, calling it "a glorious fantasy adventure… brimming with intelligence, inventiveness and generosity of heart," and Kirkus Reviews, which awarded it a starred notice and placed it on its Best Books of 2024 list, called it "an epic fantasy with timeless themes and unforgettable characters." The first book in a planned trilogy, it arrives in a Yearling Deluxe paperback edition with stenciled edges.

Read the Full Review

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Why It’s Trending

Impossible Creatures Won the 2024 Waterstones Children's Book Prize

Katherine Rundell's fantasy adventure has been picking up major award recognition, including the Waterstones Children's Book Prize. That kind of buzz has a way of sending readers — and parents hunting for a great summer read — straight to the bookshop.

Impossible Creatures has been on award lists and prize shortlists since it landed, and that sustained recognition is keeping it firmly in the conversation. Katherine Rundell is already beloved for Why You Should Read Children's Books, Even Though You Are So Old and Wise and the Rooftoppers series, so when she publishes a big middle grade fantasy, people pay attention — and the award circuit has backed that up. What's making this one resonate beyond the usual awards chatter is that it genuinely delivers. It's the kind of book that works for kids who are ready for something ambitious and for adults reading alongside them. With summer here and families looking for something to get young readers hooked, a prize-winning adventure fantasy with real emotional weight is an easy recommendation. If you've got a middle grade reader in your life — or you're an adult who never outgrew a good children's fantasy — this is exactly the kind of book worth picking up right now. The slight pacing wobble the review mentions won't slow most readers down; the world-building is too good to put down.