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!

Nancy, Bess, and George can hardly believe their eyes when they arrive at the Black Hills Buffalo Ranch. Aside from the awesome natural scenery, Mount Rushmore National Memorial—with four larger-than-life US presidents—towers nearby. But the girls have no time for sightseeing: They’ve come to help Bess’s friend Kincaid Turner find out who stole a baby buffalo named Justice from her father’s ranch. At first, stealing a buffalo seems like a strange thing to do, but as Nancy and her friends investigate, they find a whole herd of suspects. Antoinette Francoeur, an eccentric animal rights activist, makes a habit of freeing caged creatures. Badger Brady, a rival buffalo rancher, has been making threats—with an ax. And some archaeologists in the area aren’t happy about the girls’ snooping. Now it’s Nancy’s turn to round up the clues and stop a buffalo thief in his tracks.

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.

An irresistible collection of teddy bears gathers for a rollicking good time in this picture-book version of the all-time favorite song, illustrated by popular author Bruce Whatley. Full color.

George’s prize-winning Raspberry Chiffon Cake has earned her, Bess, and Nancy a week at the Wolfe Culinary Institute in upstate New York. But soon after their arrival, Nancy discovers that ambition, jealousy, and greed are also on the menu. Attempted murder provides plenty of food for thought, but that’s a mere appetizer to the dangers to come. In her search for the chef with a taste for terror, Nancy knows she’ll have to watch her diet and watch her back. The kitchen is crammed with suspects, and tensions are fast coming to a boil. The knives are all sharp, the ingredients are all poison, and the final course—most likely fatal—has yet to be served!

Nancy, Bess, and George are heading up the youth campaign to save the recently fire-gutted River Heights recreation center. Nancy suspects foul play and discovers missing insurance payments. Then someone begins sabatoging the fundraising and threatening the campaign leader, Mary McGregor. As Nancy tries to figure out whose to blame for the suspicious fire, she discovers danger smoldering in the ashes.

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!

“No room at the inn” means someone wants Nancy to check out—permanently. There’s nothing like riding a horse across the beautiful English countryside, and Nancy has been looking forward to this vacation. But the danger begins even before she arrives at stately Moorsea Manor. Someone steals a road sign, sending Nancy down a dark, twisting road to nowhere. When she finally finds the inn, she’s almost killed by a bronze statue dropped from a second-story window. The owners tell her that there have been other “pranks” as well. And once someone gets hurt, the Moorsea Manor will be out of business. Now it’s up to Nancy to find the culprit—before the guest list becomes a casualty list.