A prince is in River Heights. A prince! This is big news. A prince from a relatively minor royal Italian family has come to River Heights to deliver a painting to Mrs. Mahoney, a friend of the royal family. Everyone excited about the royal visit—so you can imagine how shocking it is when the prince is thrown into jail. His family thinks he stole the painting! Nancy and her dad have reason to believe that the prince is innoncent. But can they prove that to everyone else?

Unless Nancy can win the money in the Independence Day Rodeo, she?ll lose her beloved ranch. Before the rodeo, Tammy Calloway is thrown from her horse in what appears to Nancy to be a set-up. Determined to find out who wants Tammy out of the race, Nancy gets in deep?as the West gets even wilder.

On a winter vacation in Wisconsin, Nancy and her friends stay in a two-hundred-year-old castle where there is the rumor of a hidden treasure.

It's opening day at the Big Thrills amusement park, and that means excitement for everybody. Well, maybe not for Nancy and her friends--their free passes have just vanished!

How can a contest this sweet turn so sticky? Nancy and her friends think there is nothing more fun than ice cream in the summer. So when they find out that the owners of the local ice-cream factory are hosting a contest, the Clue Crew can't wait to enter! Contestants must come up with brand-new flavors. And they can use whatever ingredients they want! Nancy is sure that her entry -- Clue Berry -- will win! But when a friend's secret recipe goes missing, Nancy suspects that someone not-so-sweet is up to no good.

Best friends Nancy, Bess, and George choose ice cream as the subject of their group project, and when the best parlor in town starts serving yucky flavors, the young sleuth decides to save the day--and her grade.

Nancy is asked to solve a puzzling mystery then encounters a second case. The first concerns a valuable collection of rare books. Wealthy Mrs. Merriam has commissioned a supposedly reputable art dealer to sell it, but soon believes the man is a swindler. The second mystery involves the theft of a beautiful marble statue, rumored to whisper, has an uncanny resemblance to Nancy! As suddenly as it disappeared, the marble statue is returned and is discovered to be a reproduction! To solve both mysteries, Nancy adopts an alias and a disguise, becomes an employee of the suspicious dealer, gathering evidence against a clever ring of art thieves. This book is the revised text. The plot of the original story (©1937) is different.

A summer of love and mystery in the Hamptons draws to an end and Nancy will finally have to choose between Sasha, the handsome ballet star, and Ned, her longtime beau.

This camp is WILD! Nancy, George, and Bess are attending a three-day overnight camp at the local zoo. They'll get to spend lots of time with all of the animals and learn about them too. The best part is, they will be helping the zookeeper make toys for the animals -- just like real staffers! But when the toys the girls make by day are disappearing at night, it looks like everyone is a suspect! Can Nancy tame this wild case, or will the zoo animals be without anything fun to do?

After taking some items to an appraisal show, George discovers that inside his old recorder is a tape containing Lou Knight's last song, and when it is stolen, Nancy and Bess discover that other visitors to the show have been robbed also.

When the accountant of Riverview's hot new comedy club is sent to jail for embezzlement, Nancy is convinced that he has been framed, and she goes undercover at the club to catch the real crook.

In Case 61, Nancy and her pals have come to rustic Oakwood Inn to indulge in a chocolate festival fantasy. Add a dash of Brock Sawyer, celebrity taster and one of TV's hottest stars, and you have the makings of a perfect weekend. But the sweet dream turns sour when Brock is rushed to the hospital--poisoned! So Nancy sets to work to find out who would want Brock dead.

In a carnival of crime, Nancy finds nothing is what it seems . . . except the danger. Nancy has come to Riverfront amusement park at the invitation of famed illusionist Adriana Polidori. Having inherited the park after her uncle's tragic death, Adriana now finds herself on a roller-coaster ride of terror. For Riverfront has suddenly been transformed into a world of delusion, deception, and potential disaster! The danger begins with the sabotage of Adriana's magic act and quickly spreads throughout the complex. Squeals of joy turn to shrieks of fear as the park's rides spin out of control. To rescue Riverfront, Nancy knows she'll have to work some magic of her own. A dirty trickster is on the loose, bent on making Adriana disappear . . permanently!