Product details
- ISBN 9780008644451
- Weight: 220g
- Dimensions: 129 x 198mm
- Publication Date: 19 Jun 2025
- Publisher: HarperCollins Publishers
- Publication City/Country: GB
- Product Form: Paperback
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A thrilling, mysterious and very, very funny new adventure from the award-winning author of EINSTEIN THE PENGUIN, with brilliant illustrations from bestseller David Tazzyman.
Cecily Sawyer has spent the evening in the attic, training her pet mouse, Mrs Maple-Syrup – an unusually intelligent mouse, in Cecily’s opinion – when her parents disappear.
Luckily, Cecily is more than ready to investigate such a thing. She has wanted to be a spy her whole life, and has all the spy handbooks, manuals and code-cracking kits a girl could need.
But soon, Cecily discovers several very strange things in her city. She’s not the only spy out there – far from it, in fact. And Mrs Maple-Syrup is not the only unusually intelligent mouse…
Iona Rangeley grew up in Norfolk and studied English at Oxford, where she developed a love of children's books. She has wanted to be a writer since her debut novel, Sam and the Pig, which she wrote when she was five.
David Tazzyman is an internationally acclaimed award-winning illustrator.
