Dori Hillestad Butler

When a mysterious letter written in code arrives at King's house for his human, Kayla, he follows the trail of the person who left it.

When King's favorite blue ball goes missing, he and Kayla must put together clues to figure out where it went.

While searching for his mysteriously lost human family, Buddy the dog is adopted by another family and helps solve the mystery of their missing boy.

Buddy the dog risks everything when he leaves his new family to investigate what happened to Kayla and her father, his beloved former owners, by slipping into a van Kayla's uncle is using to empty her house in the middle of the night.

A lovable dog helps his human girl solve a mystery. Thor has been accused of wrecking Mr. Gary’s yard, knocking over trash cans, eating the vegetables out of the garden, and pooping. But King and Kayla, with the help of some other neighbors, are determined to clear his name, using a wide variety of familiar and new detecting skills. With simple, straightforward language and great verbal and visual humor, the King & Kayla series from Geisel Honor...

Dog-and-human detective duo, King and Kayla, must try to figure out how Raj's cat escaped from a locked house.

A group of girls in Claires town have noticed strange sights and sounds coming from the tree house where their club meets. Is it a rival boys club trying to scare them away? Or is it a ghost? The girls ask Claire to tackle the mystery--and Kaz hopes to finally find the rest of his missing family members!

The wind separates Kaz the ghost from his family and carries him to a library far away. When he meets Claire - a human who can actually see him - they must work together and solve some mysteries to find Kaz's family.

Soon after Claire is called on to investigate a new case, her ghostly partner Kaz is reunited with his brother, Little John, who joins them in searching for the cause of strange phenomena that occur each afternoon at five o'clock.

Samantha's quest to answer her questions about her past sets in motion a chain of events that will change her life forever For thirteen-year-old Samantha, life consists of too many unanswered questions. Why has her father not tried to contact her all these years? How could he have allowed her twin sister to drown in Clearwater Quarry when they were only toddlers? And how can Samantha's mother expect her to accept some man she hardly knows as her new...