Book Series · 3 Books

The Moonlight Mystery Agency Books

In order from The Moonlight Mystery Agency to The Case of the Race.

The Moonlight Mystery Agency series is a set of 3 chapter books by Vashti Hardy, published between 2025 and 2026. Written for ages 5–8, most books run about 120 pages.

The Moonlight Mystery Agency
The Puzzling Paw Prints
The Case of the Race
The Moonlight Mystery Agency
The Puzzling Paw Prints
Where the story begins

First Book in the Series

The Moonlight Mystery Agency
Sale price
$1348
Book #1 · Chapter Book · Ages 5–7 · 2025

The Moonlight Mystery Agency

A girl and a detective cat solve a unicorn's missing cake mystery.

96 pages
$13.99Save 4%
Paperback
Summary: Hana's wish for a pet leads her to Ace, a detective cat with a mission. Together, they join the Moonlight Mystery Agency to unravel the enigma of Spark the bionic unicorn's missing birthday cake. As Hana dives into this magical adventure, she discovers a world where nothing is as it seems. Can they crack the case and find the cake before it's too late? Embark on a whimsical journey filled with unexpected twists and turns, where friendship and mystery collide in the most enchanting ways.
In reading order

The Moonlight Mystery Agency Series

3 books · Published 2025–2026

Good to know

Common Questions

How many books are in the Moonlight Mystery Agency series?

There are 3 books in the Moonlight Mystery Agency series. It began with The Moonlight Mystery Agency in 2025, and the newest book, The Case of the Race, was published in 2026.

What order should you read the Moonlight Mystery Agency books in?

Start with The Moonlight Mystery Agency and follow the series order — the books above are numbered #1 through #3.

What ages are the Moonlight Mystery Agency books best for?

The series is best for ages 5–8, based on the age ranges of the individual books.

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The Creatives Behind the Books

The people who bring The Moonlight Mystery Agency to life.

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