Washed ashore as a baby in tiny Tupelo Landing, North Carolina, Mo LoBeau, now eleven, and her best friend Dale turn detective when the amnesiac Colonel, owner of a cafe and co-parent of Mo with his cook, Miss Lana, seems implicated in a murder.

In the small city of Strattenburg there are many lawyers, and thirteen-year-old Theo Boone thinks he is one of them, but his inside knowledge of the justice system means trouble when a cold-blooded killer is about to go free and only Theo can stop him.

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.

"Thorn, a boy sold into slavery who must serve the royalty of Castle Gloom for a year and a day to earn his freedom, and Lilith Shadow, the 13-year-old ruler of Gehenna, who is forbidden to practice the magic that is her heritage, join forces to solve the murders taking place in Gehenna"--

Twelve-year-old Jessie spends the summer with her family on Quicksand Pond, a New England vacation spot, where she develops a star-crossed friendship with independent Terri, and meets a reclusive old lady whose cconnection to a murder that took place decades ago still informs her present--and affects Terri in ways that Jessie gradually comes to understand the more time they spend together.

In Tarreton, where the rich have all the magic they wish and the poor can barely afford a spell to heat their homes, twelve-year-old Isaveth's father is accused of murdering an influential citizen and Isaveth, aided by eccentric street boy Quiz, tries to solve the magical murder mystery before her father is executed.

Five murder suspects are invited to the haunted Barclay Hotel for a weekend getaway, and it is up to twelve-year-old JJ and eleven-year-old Penny--and a lonely ghost--to figure out who committed the crime.

In 1930s England, schoolgirl detectives Daisy Wells and Hazel Wong are at Daisy's home for the holidays when someone falls seriously, mysteriously ill at a family party, but no one present is what they seem--and everyone has a secret or two--so the Detective Society must do everything they can to reveal the truth . . . no matter the consequences.

From the outside, Queenie the cat and Arthur the dog appear to have a lot in common. Both pets live in the charming Blackberry Hill inn. They both love their humans, twins Harmony and Bro. They both have a fondness for sausage. But that doesn't change the fact that they are mortal enemies. Goofy, big-hearted Arthur loves everyone he's ever met ... except the snobby, scheming cat who's devoted her life to ruining his. Queenie is a bit choosier....

At an English boarding school in the 1930s, crime-solving friends Hazel Wong and Daisy Wells struggle to find an exciting mystery to investigate until Hazel discovers the dead body of Miss Bell, the science teacher.