Dot and Jabber, mouse detectives, try to solve the mystery of the disappearing insects.

Thirteen-year-old Nicki Demere is an orphan and a kleptomaniac, making her the perfect girl to portray the Trevors' daughter in witness protection, but she soon learns that the biggest threat to her new family's security comes from her own past.

Best friends and amateur pre-teen sleuths Sophie Young and Grace Yang go undercover at their town's annual festival and parade to catch a murderer before he or she strikes again.

Henry's and Eva's lives are forever changed when their parents die in a mysterious boating accident. That was a very bad day, but things are going to get worse. Their uncle Claude the Clod and his awful girlfriend, Terri the Terrible, have moved into the children's house on the cliff "to take care of them," but Eva has her doubts about their intentions. And when some spooky visitors appear with a message, Henry and Eva realize that their parents'...

Their last summer before going to different middle schools, best friends Birdie, Ally, and Rose follow clues found in a mysterious box labeled Open If You Dare.

Anna and Max love scary stories - but when they find a mysterious knife on a dark and stormy night, truth soon becomes stranger than fiction. Dragged into a world of monsters and magic, will the siblings find a way to survive?

"Nothing exciting ever happens in the small town of Newpark, where Brian, Hannah and twins Chris and Sam live. And when they start their summer vacation, they know it's the end of an era. The Misfits Club--a club they started when they were eight years old--is disbanding, and they still haven't managed to solve any real mysteries. But when they persuade new club member Amelia to go investigate a spooky old house, they unxpectedly discover some stolen...

Eighteen-year-old Jill Charron wakes up in a hospital, unable to remember the past six weeks, including the accident that killed her best friend, if it was, in fact, an accident.

"Orphans Philippa, Sam, Thomas, and Max must find out who stole a valuable artifact in order to save to save their home, Dumfrey's Dime Museum of Freaks, Oddities, and Wonders"--

In Washington, D.C., twelve-year-old Florian Bates, a consulting detective for the FBI, and his best friend Margaret must uncover the truth behind a series of private middle school pranks that may or may not involve the daughter of the President of the United States.