Book Series · 11 Books

King & Kayla Books

In order from King & Kayla and the Case of the Missing Dog Treats to King & Kayla and the Case of the Escape Artist.

Kayla and her enthusiastic dog, King, solve everyday mysteries by noticing clues, sorting out what they know, and working together.

Reviewed by the Bookroo Editors Updated August 12, 2026

King & Kayla and the Case of the Missing Dog Treats

King & Kayla and the Case of the Secret Code

King & Kayla and the Case of the Mysterious Mouse

King & Kayla and the Case of the Lost Tooth

Reading order

How to Read the King & Kayla Books

The eleven cases are shown in publication order. Each mystery stands alone, so a new reader can choose any appealing case; starting with The Case of the Missing Dog Treats introduces King, Kayla, and their shared problem-solving routine.

Sources: Peachtree King & Kayla series.

For parents

What Parents Should Know

These illustrated early readers bridge the space between picture books and longer chapter books. King's funny first-person observations and Kayla's lists make inference, evidence, and step-by-step reasoning easy to discuss.

The mysteries involve missing objects, pets, a possible ghost, and other manageable worries. No crime is dangerous, and every case ends safely and reassuringly.

Where the story begins

First Book in the Series

Sale price

$674

Book #1 · Picture Book · Ages 7–9 · 2017

King & Kayla and the Case of the Missing Dog Treats

By Dori Hillestad Butler, Nancy Meyers (Illustrator)

A dog helps his human solve the mystery of missing peanut butter treats

48 pages· 1,288 words· Est. 10 min read-aloud

$6.99Save 4%

Paperback

Summary: Kayla's homemade peanut butter treats for a puppy have disappeared, and her dog King is the prime suspect. But with King's breath peanut butter-free and his nose sensing an intruder, the duo must uncover the real culprit. Is it Jillian's mischievous brother Adam, or someone else entirely? As they gather clues and evaluate evidence, Kayla and King must work together to crack the case. Will they solve the mystery before the trail goes cold?

In reading order

Picture Book · Ages 7–9 · 2019

A dog named King and his human Kayla help a lost dog named Fred find his family during their vacation at Grandma's house

King & Kayla and the Case of The Unhappy Neighbor

#6 in Series

Sale price

$674

King & Kayla and the Case of The Unhappy Neighbor

Picture Book · Ages 6–8 · 2020

A group of dogs team up to solve a mystery of a vandalized yard.

King & Kayla and the Case of the Gold Ring

#7 in Series

Sale price

$674

King & Kayla and the Case of the Gold Ring

Picture Book · Ages 7–9 · 2021

A dog named King helps his human Kayla solve the mystery of a missing gold ring.

King & Kayla and the Case of the Lost Library Book

#8 in Series

Sale price

$674

Picture Book · Ages 7–9 · 2025

A dog vanishes from daycare. Can King solve the mystery?

Good to know

Common Questions

How many books are in the King & Kayla series?

There are 11 books in the King & Kayla series. It began with King & Kayla and the Case of the Missing Dog Treats in 2017, and the newest book, King & Kayla and the Case of the Escape Artist, was published in 2025.