(Paperback)

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.

(Paperback)

When the fire station's new dog, Sparky, finds a ghost at the door of the TV room, Kaz and Claire investigate, hoping the ghost may be one of Kaz's relatives.

(Paperback)

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.

(Paperback)

"After successfully solving the mystery of the ghost in the library, Kaz and Claire land the first case for their detective agency--a haunted attic in a neighbor's home! With a little help from Grannie, Kaz and Claire discover that what appeared to be something spooky has a much simpler explanation."--Provided by publisher.

(Paperback)

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!

(Paperback)

"Kaz and Claire take a trip downtown, hoping to find Kaz's long-lost uncle. Instead, they meet a group of ghosts who live in the movie theater. But soon the ghosts start mysteriously disappearing! Who or what is chasing them away And can Kaz and Claire bring the ghosts back"--

(Paperback)

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!

(Paperback)

While in Seattle, Kaz and Claire explore the local library and find a ghost whose family is missing. The kids decide to investigate and discover ghostly activity in the city's subterranean passages in the final title of this chapter book mystery series. Illustrations.