Book excerpt: Bess has landed a job at the Razor’s Edge dance club, and she’s invited Nancy to check it out. With a wild young crowd, crazy costumes, and a handsome DJ, it’s the kind of place where anything can happen—and soon does. When the lights go out and someone screams, no one knows what is happening. But as soon as the blackout is over, Nancy makes a shocking discovery: Bess has disappeared!