The Mizzy Mysteries Series

by Claire Hatcher-Smith

(15 reviews)

The Mizzy Mysteries is the perfect middle-grade series for all detective wannabes aged 8+, written by Claire Hatcher-Smith with illustrations from Yaroslava Apollonova and Lester Magoogan to help readers as they develop confidence reading independently.

The books in this series all centre a mystery which needs to be solved by the brilliant protagonist Mizzy, from locked wardrobes and anonymous postcards to her own disappearing cousins and the family secrets that have been long buried! If there's one thing about Mizzy to know, it's that she does not shy away from problems, even when things seem impossible to figure out.

We also especially love that Mizzy has Down syndrome, making this a book that not only is inclusive but widens our children's experience and empathy, and calls out all the grown-ups who underestimate her!

If you enjoyed this series and what to read more like it, do check out our list of the Best Crime and Mystery Series for ages 9 and 10, which includes the Murder Most Unladylike, Agent Zaiba Investigates and Alice Eclair.

All The Mizzy Mysteries books in order:

Book 1: A Skeleton in the Closet (2025)
Book 2: The Shadow on the Wreck (March 2026)

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Book 1

The Mizzy Mysteries: A Skeleton in the Closet

Book 1

The Mizzy Mysteries: A Skeleton in the Closet

Brand new for 8- to 12-year-old murder-mystery readers in 2025, debut author Claire Hatcher-Smith’s unique detective her... MoreThe Mizzy Mysteries: A Skeleton in the Closet

(15 reviews) 5 15

Review

Book 2

The Mizzy Mysteries: The Shadow on the Wreck

Book 2

The Mizzy Mysteries: The Shadow on the Wreck

A mysterious figure on an old fishing boat, anonymous postcards, disappearing cousins – Mizzy is thrilled to have a new ... MoreThe Mizzy Mysteries: The Shadow on the Wreck

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The Mizzy Mysteries: The Shadow on the Wreck

26th March 2026

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Recent Reviews

The Mizzy Mysteries: A Skeleton in the Closet

by LibraryMG

So important to have casual representation where the story is the focus. High drama, great characters and a storyline that kept my library crew guessi...
The Mizzy Mysteries: A Skeleton in the Closet

by MrsD271015

This was an interesting mystery with a vast cast of possible suspects and a slight element of peril.
I really enjoyed the representation in this book...
The Mizzy Mysteries: A Skeleton in the Closet

by misswynnreads__

I am a big fan of detective stories and this one was great! I loved the whole plot and the twists along the way and I definitely didn’t crack the case...

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