Carolyn Keene

Nancy sets off to find a long-lost engine that gets 200 miles to the gallon. The problem arises when they encounter a ghost that guards the machine.

A billionaire environmentalist has constructed bio-domes in River Heights to help save the planet, but, shortly after a gross green substance destroys one of the domes, creatures such as Sasquatch, Okala Kane, and the Abominable Snowman are seen lurking nearby. Nancy, Bess, and George investigate.

When an ancient artifact and a little boy go missing, Nancy and her friends are on the case. The artifact may prove that the Chinese discovered America prior to Columbus, but someone doesn't want that knowledge public and is out to stop Nancy, permanently.

When everyone in town suspects the new boy in town, Gregor, is a vampire, Nancy gets to the bottom of the mystery, but doing so could compromise her relationships with her friends.

When Nancy Drew and Ned Nickerson attempt to return a lost dog named "Togo" to its owner in the small town of Nevershare, they stumble onto a much bigger mystery--where did all the people go? The entire population of Nevershare is missing, except for one person, and she's mean and not very helpful.

When Nancy is pushed over a cliff while trying to find out who sabotaged a search for the rare tillybin plant, a potential cure for Alzheimer's, it is up to her friends Bess and George to save her and find the culprit.

Nancy's car is stolen! A rare copy of Edgar Allen Poe's first story has vanished! A girl has been kidnapped! All before this story even begins! To set things right and satisfy a crazed Poe fan, Nancy Drew must solve a sixty-year-old mystery that's daunted millions and discover the true identity of the person who visits Poe's grave every year, toasting the writer and leaving three roses. Fortunately, she has plenty of help as her two new pals, the...

"Nancy Drew travels to Turkey with her father, attorney Carson Drew, who plans to negotiate the sale of an ancestral estate belonging to one of his clients. When Nancy finds that mysterious artifacts have been disappearing from the estate, she turns her suspicions to Harland Severino, a rich man who desperately wants to purchase it. Nancy does some sleuthing that leads her beneath the property into an environment no one could've guessed what lay there:...

"In "The Fake Heir" Nancy, along with Bess and George, find the wreck of an old yacht with a safe inside full of jewelry worth a small fortune. Cousins of the Druthers owned the yacht and their will leaves everything to Mr. Druthers, but no one's seen him for ten years. The rumor is Mrs. Druthers murdered him! Things take a surprising turn when suddenly Mr. Druthers reappears! But then Mrs. Druthers disappears! Join Nancy Drew as she solves the mystery...

When Nancy, Bess, and George investigate a missing cat mystery, they run into escaped lions and tigers in the woods and a deadly cat and mouse game ensues.