mystery and detective stories

Four chickens--Dirt, Sugar, Sweetie, and Poppy--investigate the theft of a strange blue bird's house.

When scary strangers appear at the Monroes' overnight campsite, Chester the cat tries to convince the family's two dogs that foul play is intended.

When the gang enters a spooky New Orleans mansion in search of a phone, they encounter some strange sights and characters--and the reader must help them figure out just what is going on.

The Alden children go to spend the summer on their aunt's ranch out west where they set themselves the task of restoring the relationship between Aunt Jane and their grandfather.

The invisible boy Chip intends to enter his invisible dog Max in the dog show, but when Max goes missing, Chip and his Invisible Inc. friends suspect foul play.

The Aldens become involved in a community theater production of "The Wizard of Oz," which is systematically and mysteriously being sabotaged.

Dink, Josh, and Ruth Rose investigate the kidnapping of the new baby panda at the petting zoo.

While visiting Dink's uncle in New York City, Dink, Josh, and Ruth Rose help uncover who is responsible for stealing a very valuable painting.

On Halloween night the people of Cranberryport almost lose the money they have raised to build a new dock.