mystery and detective stories

Cam and her friend Eric chase the thief of Aunt Katie's wallet through an amusement park and find themselves involved in another case requiring their special detective skills.

Cam Jansen relies upon her photographic memory to help her solve the mystery of who is taking bones from the dinosaur exhibit at the museum.

Cam, Eric, and Aunt Molly go to a rock concert when Cam has to use her photographic memory to catch a thief disguised as a ghost.

Alexa and Jose reunite at the ruins of an ancient Mayan temple and discover a sinister plot to sell priceless Mayan artifacts to the highest bidder that pulls them into a dangerous jungle adventure.

From the cover: Quentin Jacobsen has spent a lifetime loving the magnificently adventurous Margo Roth Spiegelman from afar. So when she cracks open a window and climbs back into his life -- dressed like a ninja and summoning him for an ingenious campaign of revenge -- he follows. After their all-nigher ends and a new day breaks, Q arrives at school to discover that Margo, alway an enigma, has now become a mystery. But Q soon learns that there are clues -- and they're for him. Urged down a disconnected path, the closer he gets, the less Q sees of the girl he thought he knew.

"Young sleuths Abbi, Lydia, and Daniel notice that the dolphins off the coast of Maine are acting strangely and set out to find out why"--.

Nancy Drew and her friends become caught up in a dangerous investigation when they agree to help search for a diamond thief while on a cruise around the Great Lakes.

"Nineteen-year-old Signa Farrow must solve a duke's murder and contend with a seemingly all-powerful deity, Fate"--Provided by publisher.

One year after her best friend, Audrey, went missing, Paige enters a world far darker than she ever could have imagined to find the truth after discovering a burner phone hidden in Audrey's old room that links her disappearance to that of another girl.