So I was sitting with Ned in a lecture, and then bam, Ned's in a three-piece suit, and I'm in a city hall meeting on how to get through the beginning of the Great Depression. As in the Depression, in the 1930s. What's more, there's a thief to track down. Someone's robbing local banks of what little money they have. Everyone's panicked about their money, so the thief could be just about anyone. But after spending just a little time in this odd place, I have a hunch there's more to it... Bad Times, Big Crimes

Nancy's Earth Day project turns into chimpanzee chaos in the nineteenth book in the interactive Nancy Drew Clue Book mystery series.Nancy, Bess, and George need to create an Earth Day project for school, and they've landed on the perfect idea: Chimpiñatas! These globe-shaped piñatas are enrichment toys made for the chimpanzees at the Hairy Hideaway animal sanctuary to enjoy. The girls have filled them with the chimps' favorite healthy snacks, like seeds and fruit, but when the chimps crack open the piñatas, they find that one of them is filled with candy! Who could have switched out the Chimpiñata, and why would they want to make the chimps go bananas? If anyone can find the schemer behind this sugar rush, it's the Clue Crew!

ON THE EXOTIC ISLAND OF ST. ANN, NANCY SEARCHES FOR SECRETS BURIED IN THE PAST! Swimming, sailing, and snorkeling are all that Nancy, Bess, and Ned expect when they visit old friends at their nineteenth-century plantation, Sugar Moon. But when a strange man appears, brandishing a cutlass, and Nancy discovers traces of intruders, her curiosity is aroused. Soon she comes across a faded love letter with clues to the hiding place of a long-dead pirate's precious gift — a fabulous emerald necklace. Many colorful island characters have a serious stake in finding the treasure, and Nancy barely escapes from their traps, on land and at sea. Then, just as Nancy locates the necklace, it's about to slip from her grasp forever!

CIRCUMSTANTIAL EVIDENCEDOESN'T PROVE THE IDENTITYOF CRAFTY THIEVES! Nancy's friend Bess has been hired by Special Effects, a River Heights company, to decorate Albemarle's department store for the holidays. When Bess discovers that her friend Ali Marie is now working at the store, she's thrilled -- the two of them can have lunch and try on clothes for fun! But when some dresses are swiped, Ali is accused of stealing, and the party's over. Sure of her friend's innocence, Bess calls in Nancy to help find the real thief. With all the suspects and misleading clues, Nancy and her friends are running in circles -- and the holiday shopping rush isn't helping! Can they figure out the identity of a clothes-hungry kleptomaniac before the holiday season turns sour?

Nancy investigates the kidnapping of Caterina Reigert by posing as the writer of the girl's father's autobiography.

An antique dealer's revelation about a former queen's priceless heirloom starts Nancy on a trail of exciting adventures. Madame Alexandra, now living incognito in River Heights, asks Nancy to find her missing grandson. With only one clue to go on -- a faded photograph of the prince at the age of four -- the young detective begins her search, which rapidly involves her in a series of dangerous and harrowing adventures. When Nancy needs help, she calls on Bess, George, Burt, Dave, and her special friend, Ned. How Nancy's discovery of the heirloom's secret unmasks a slick imposter and reunites the long-separated family climaxes this suspense-filled mystery story.

Bess, George, and I volunteered to go to Costa Rica for some R&R: rest and research. See, Corcovado Ecologica, a popular resort and preserve, isn't only a beautiful getaway; it's also a great place to study three species of monkeys. Or so we thought. When we arrived on the scene, we found the place in a shambles, and the monkeys were few and far between. And if the problem gets worse, the resort's going to be in trouble. Clearly my friends and I won't have much time for "monkeying around" on this trip — we've got a case to crack! Catch my next case: Secret of the Spa

In Treasure Trouble, Nancy, George, and Bess are headed to Barnacle Beach for a pirate-themed birthday party. But when the treasure chest filled with party favors disappears, playtime is over. With the help of a mysterious treasure map, the Clue Crew needs to reclaim the missing loot before the party’s completely ruined. In Double Take, the Clue Crew has competition—one of their classmates has started a rival sleuthing club! Can Nancy and the girls solve the latest case before the phony detectives do?

Nancy Drew and the Clue Crew are off on a spooky adventure when their prizewinning scarecrow goes missing. Nancy, Bess and George are thrilled when their class is asked to design a scarecrow for the town’s biggest department store’s window. And it gets even better when their design wins! But when the scarecrow is stolen from Bess’s porch, it’s up to the Clue Crew to save the day. The case is tough, especially with a shadowy figure running around town, a list of suspects that keeps growing, and Deirdre Shannon trying to get Bess in trouble. Can the girls find the scarecrow in time? Or will the store’s fall window be ruined?

Nancy enters a world of glamor and glitz where murder is all the rage While in San Francisco to visit Ned's cousin, whose husband works at one of the Coast's hottest talent agencies, Nancy and Ned rub elbows with some of the city's most beautiful people. But one of those beautiful people has met a blunt and ugly end. The agency's #1 model is out of the picture for good--found dead in a back alley! The urge to make it big in front of the camera is powerful and tempting. Even Ned has stars in his eyes, and Nancy's beginning to wonder if he's lost sight of her. But behind the spotlight, she finds that the climb to the top can prove slippery and dangerous. Greed, ambition, and deceit are the rules of the game...and murder has struck the final pose!

When Paula DeJagger, an exchange student staying with one of Nancy's friends, begins acting strangely, Nancy investigates and discovers that Paula and other exchange students are being blackmailed to commit crimes.

Further adventures of the popular girl detective, Nancy Drew.

Can Nancy solve this chilling mystery? Who wears a blue scarf and old rubber boots, and has broccoli for a nose? It's Sherlock -- Nancy, Bess, and George's snowman! The girls are thrilled to be on winter vacation and take part in all of the season's activities! Nancy's friend Deirdre has even transformed herself into Madame Chocolata, a fortune-teller who predicts the future by reading hot cocoa marshmallows! But the wintry days get a little too chilly after many of Deirdre's visions come true. Sherlock even goes missing -- just as predicted! Can the Clue Crew put a freeze on this mystery before it snowballs out of control?