Dori Hillestad Butler

King's human, Kayla, has baked some treats for a friend's new puppy, Thor, but some go missing and it is up to King to find the culprit.

King & Kayla hunt for Asia's missing gold ring.

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

Edgar Award Winner Dori Hillestad Butler gives us the tenth—and final!—title in her not-too-scary chapter book mystery series, The Haunted Library, in the form of a super special!
It's almost Halloween, and Kaz and Claire are off to Seattle to visit Claire's cousins. They explore the local library...and find a ghost living there! The ghost's family has been missing, so Kaz and Claire decide to investigate. When they discover...

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...

Investigating a classmate's claim that he saw a ghost backstage while rehearsing for the school play, Kaz and Claire, harboring suspicions that the ghost may be Kaz's mom, discover compelling evidence of otherworldly activities.

Now that Kaz can finally pass through walls without feeling all "skizzy," he can go explore Beckett's secret room at the back of the library. What he finds there is a mystery he never expected!

Buddy the dog discovers a strange, blue-tongued creature in the school library, and investigates what it is and how it got there.

A group of girls in Claire's 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!

King and Kayla go on a sleepover adventure at Thor and Jillian's house, where they investigate spooky occurrences in the basement.