"It began here as Nancy Drew set off to find a long-lost engine that can get 200 miles per gallon! It ends here -- in a race to win a government contract to mass-produce a new fuel-efficient car. But someone isdetermined that Nancy must lose - at any cost!"--P. [4] of cover.

Nancy and friends investigate the disappearance of an eccentric woman's chimpanzee and the expensive diamond necklace he was wearing.

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.

"Join Nancy Drew, along with Bess and George, as they search for missing student filmmakers and discover the deadly secret behind the local urban myth know as "The Demon of River Heights""--P. [4] of cover.

When Nancy's new friend calls for help and the line goes dead, Nancy flies to India to save her despite risking the wrath of Sahadev the crime lord, who wants to sacrifice Nancy to Kali.

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.

A top-secret computer chip has been stolen from Rackham Industries and a mysterious charm bracelet is mailed to Nancy. And each charm represents a different crime. Can Nancy, with help from Bess and George, deal with River Heights' latest crime spree and her romantic crisis at the same time?

Nancy, George, and Bess volunteer for some work at the River Heights Animal Protection Center only to find themselves looking for escaped circus tigers.

After stealing a million in investment cash, a desperate robber commandeers a hot air balloon at the local exposition, only to be lost in a raging storm. The balloon was tracked to a high mountain area before going down. When Police Chief McGinnis refuses to take Nancy on the recovery effort, she and the girls stowaway with the investment bankers, also climbing the mountain, in an effort to recover their funds. Unfortunately, once the balloon is...