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.

The King & Kayla series is a set of 11 picture books by Dori Hillestad Butler, published between 2017 and 2025. Written for ages 4–9, most books run about 50 pages.

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

About the series

What's King & Kayla About?

Eleven gentle early-reader mysteries told with help from King the dog as he and Kayla gather clues, make lists, and solve everyday cases.

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

King & Kayla Series

11 books · Published 2017–2025

#1 in Series

Sale price

$674

King & Kayla and the Case of the Missing Dog Treats

Picture Book · Ages 7–9 · 2017

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

#2 in Series

Sale price

$674

King & Kayla and the Case of the Secret Code

Picture Book · Ages 7–9 · 2017

A dog named King helps his human, Kayla, and her friend Mason solve a mystery involving coded letters.

#3 in Series

Sale price

$674

King & Kayla and the Case of the Mysterious Mouse

Picture Book · Ages 7–9 · 2017

A missing ball leads to a puzzling mystery. Can King and Kayla solve it?

#4 in Series

Sale price

$759

King & Kayla and the Case of the Lost Tooth

Picture Book · Ages 7–9 · 2018

A dog helps his owner solve the mystery of her missing tooth

#5 in Series

Sale price

$674

King & Kayla and the Case of Found Fred

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

King & Kayla and the Case of the Lost Library Book

Picture Book · Ages 7–9 · 2022

A missing library book threatens new adventures. Can King and Kayla solve the mystery?

King & Kayla and the Case of the Cat Hunt

#9 in Series

Sale price

$674

King & Kayla and the Case of the Cat Hunt

Picture Book · Ages 6–8 · 2023

A cat vanishes from a locked house. Can the detective duo crack the case?

#10

King & Kayla and the Case of the Downstairs Ghost

#10 in Series

Sale price

$674

King & Kayla and the Case of the Downstairs Ghost

Picture Book · Ages 4–8 · 2024

A mysterious shape haunts the basement. Can King and Kayla uncover the truth?

#11

King & Kayla and the Case of the Escape Artist

#11 in Series

Sale price

$759

King & Kayla and the Case of the Escape Artist

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.