The owner of a toy and teddy bear shop where Bess is working during the Christmas rush is robbed of his prized collection of antique bears.

On the trail of a teddy bear thief, Nancy unwraps double-dealing and double crosses! Bess is working during the Christmas rush at Beary Wonderful, a toy and teddy bear shop, when the holiday season takes a sudden scary turn. The owner’s prized collection of antique teddy bears—cute, cuddly, and worth a bundle—has been ripped off. But the break-in is only the beginning of a much bigger and more brazen teddy bear caper. The attempted theft of Bess’s own bear—a replica of one of the antiques—leads Nancy to believe that more is at stake than a couple of burgled bears. For Nancy knows that even something as innocent as a teddy bear can be stuffed with intrigue!

Solving crimes with science is fascinating—until a pretend mystery becomes all too real! Nancy gets Bess, George, and Ned to help out with a special program for high school students, a “chemystery” camp. They’ll visit a forensics lab, a drug company, and a university to see how science is used to solve crimes. Then they’ll use what they’ve learned to work on a made-up case. But the mystery begins even before the program starts when the professor who runs it suddenly falls into a coma. Now Nancy’s in charge—of the made-up case and the real one. Strange encounters of the dangerous kind and a list of promising suspects test all her talents of deduction. From the tiniest clue on a carpet to real menace in a quarry, Nancy’s crime lab is bubbling with trouble!

Everyone thinks a ghost is the thief, but Nancy is on the case! A masked Mardi Gras ball turns spooky when revelers are tormented by a what they think are ghosts. When Deirdre Shannon’s antique tiara is snatched Nancy is certain the crook is a guest--not a ghoul.

When a series of rare-book thefts strikes the Bloom’s Bookstore & Coffeehouse in River Heights, Nancy Drew finds her only clue in the handwriting of a dead woman.

Whoa, baby! When a neighbor hires Nancy, Bess, and George to take care of her eighteen-month-old identical twins, the girls are happy to help. After all, the Clue Crew has stopped would-be thieves, uncovered scams, and recovered stolen objects -- how hard can watching a couple of babies be? But being a mother's helper is trickier than they thought, especially when the twins' toys start disappearing. Can the Clue Crew look after the babies and figure out who's taking the toys, or are they in too far over their heads this time?