While on a cruise on a luxury liner Anne Beddingfeld searches for the evil criminal responsible for a series of baffling murders.

"Adrenaline junkie Zan finds herself in the crosshairs of an antiquities smuggling ring while on vacation with her mother. She must help them find the ancient treasure they seek in order to keep her family safe!"--

"Jameson and Grayson Hawthorne are each pulled into a different high-stakes game, where they must decide who they want to be and what they will sacrifice to win"--

"A year after the Bayview four were cleared of Simon Kelleher's death, a new mystery has cropped up--a game with dangerous consequences that's targeting students at Bayview again. And if the creator isn't found soon, dangerous could prove deadly"--

The three Bear Detectives search for a dinosaur bone that is missing from the Bear Museum.

Hoping to become the greatest detective that ever grew, Inspector Flytrap, a Venus flytrap, and his assistant, Nina the Goat, investigate "big deal" mysteries at an art museum, a cookie shop, and a garden.

"Six kindergarteners were taken. Eleven years later, five come back--with no idea of where they've been. No one remembers the sixth victim, Max. Avery, Max's sister, needs to find her brother--dead or alive--and isn't buying this whole memory-loss story"--

The Boxcar Children are spending the summer mountain climbing in New England, where they encounter a dangerous rockslide, a cave, and a secret treasure, among other adventures!

Sixteen-year-old Lorelei is not happy when her family moves into an old bed-and-breakfast in Gettysburg, Pennsylvania--and that is before she meets the Civil War ghost, Nathaniel, who needs her help, and discovers that some of the hotel staff are not what they seem to be.

One month before graduating from his Central Florida high school, Quentin "Q" Jacobsen basks in the predictable boringness of his life until the beautiful and exciting Margo Roth Spiegelman, Q's neighbor and classmate, takes him on a midnight adventure and then mysteriously disappears.