Petrucha, Stefan

Nancy, Bess, Ned, and George set out to find a little boy who suddenly turned up missing as well as locate a missing ancient Chinese artifact; but someone is determined to stop her.

With a government contract to mass-produce a new fuel-efficient car at stake, Nancy's enemies are determined to make sure she loses no matter what.

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

Nancy Drew faces double trouble when an ancient artifact and a little boy are missing.

Teenager and genius Harry Keller discovers an alternate dimension he calls "A-Time," in which he can see and affect events in the past, present, and future.

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, Bess, and George meet Louise and Jean Dana on a trip to Penfield where they join in a contest to see who can win the title of top girl detective.

Just when sixteen-year-old Devin's rock band, Torn, is on the verge of success, its members are stalked by a beast that is a ruthless killer.

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.