Book Series · 2 Books

Animal Shelter Detective Agency Books

In order from Diamonds in the Ruff: A Mystery Adventure for the Middle Grade! to Group Pug: A Mystery Adventure for the Middle Grade!.

The Animal Shelter Detective Agency series is a set of 2 chapter books by Rob Baddorf, published between 2024 and 2025. Written for ages 9–12, most books run about 220 pages.

Group Pug: A Mystery Adventure for the Middle Grade!

Where the story begins

First Book in the Series

Sale price

$1498

Book #1 · Chapter Book · Ages 9–12 · 2024

Diamonds in the Ruff: A Mystery Adventure for the Middle Grade!

By Rob Baddorf

Misfit pets unite to solve a shelter's stolen funds mystery.

221 pages

$15.99Save 6%

Paperback

Summary: Rinky Dink, a tiny guard dog, faces his biggest challenge when the shelter's fundraiser money disappears. Teaming up with Brutus, a reluctant bulldog, they navigate quirky allies to crack the case. Can this unlikely duo solve the mystery before time runs out?

In reading order

Animal Shelter Detective Agency Series

2 books · Published 2024–2025

#1 in Series

Sale price

$1498

Diamonds in the Ruff: A Mystery Adventure for the Middle Grade!

Chapter Book · Ages 9–12 · 2024

Misfit pets unite to solve a shelter's stolen funds mystery.

#4 in Series

Sale price

$1597

Group Pug: A Mystery Adventure for the Middle Grade!

Chapter Book · Ages 9–12 · 2025

A tiger vanishes, and shelter pets must solve the mystery before it's too late.

Good to know

Common Questions

How many books are in the Animal Shelter Detective Agency series?

There are 2 books in the Animal Shelter Detective Agency series. It began with Diamonds in the Ruff: A Mystery Adventure for the Middle Grade! in 2024, and the newest book, Group Pug: A Mystery Adventure for the Middle Grade!, was published in 2025.