Dori Hillestad Butler has published magazine stories, educational materials, plays, book reviews, characters for a board game, and over sixty children's books. A two-time Geisel Honor Book winner for King & Kayla and the Case of the Missing Dog Treats and King & Kayla and the Case of the Lost Tooth, she has also been nominated for children's choice awards in nineteen different states and won the 2011 Edgar Award for the best juvenile mystery for Buddy Files: Case of the Lost Boy. She lives in Washington.

A lovable dog helps his human girl solve a mystery.Kayla made peanut butter treats for Jillian's new puppy Thor. But now the treats are missing. What does Kayla know? ¿There are three treats missing. King was in the kitchen. King's breath doesn't smell like peanut butter. What does King know? ¿There's an intruder in the house. How will they solve the mystery?