"Nancy and her father Carson find themselves in an ancient city long buried below a luxurious estate, the sale of which has brought them to Turkey. Thieves led by a mysterious rich man named Harold Severino search franti...
"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.  of cover.
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.
Someone is determined that Nancy loose the race to win a government contract to mass-produce a new fuel-efficient car.