While vacationing at a lake, Nancy, Bess, and George have their eyes on first prize in the annual sand castle contest. They use special colored sand and carefully build the castle to look like the ones they researched at the library. If the girls win, they’ll get their picture in the local paper and all the ice cream they can eat. But before judging begins, someone wrecks the girls’ castle and writes a mean message in the sand. Nancy and her friends will have to dig deep to get back into the contest before it’s too late!

Blue bells will be singing horses! This strange message, attached to the leg of a wounded homing pigeon, involves Nancy Drew in a dangerous mission. Somewhere an elderly woman is being held prisoner in a mansion, and Nancy is determined to find and free her. Meanwhile, the young detective’s close friend, Helen, begs her to solve a second mystery. Helen’s grandparents, the Cornings, are frightened by a sinister wheel of blue fire that appears after dark in the woods outside their home at lonely Sylvan Lake. When Nancy discovers the significance of the eerie signal, she also learns that her two mysteries are connected.

Read the original Nancy Drew mystery! The Secret of the Old Clock is the mystery that began it all for America's favorite teenaged slueth. The accidental rescue of a little girl who lives with her two great-aunts leads to an adventurous search for a missing will.

When Nancy receives a letter informing her she’s heir to a fortune, she decides to track down the sender, as well as the other Nancy Drew.

Nancy takes her best friends, George and Bess, to the new spa in town. However, weird things keep happening that may drive business away, and Nancy is determined to find out who's responsible.

In the course of solving the mystery of an old man's disappearing fortune, Nancy both starts and ends a family feud and reveals the identity of an orphan of unknown parentage. The Sign of the Twisted Candles is the ninth volume in the Nancy Drew Mystery Stories series. As the second volume written by Walter Karig, it was originally published in 1933 under the pseudonym Carolyn Keene.

Nancy Drew returns to the Hamptons to investigate the disappearance of a local artist's paintings, and to continue her romance with Sasha, the Russian ballet star.