Storm Warning by Dinah McCall

The phone rings. She picks up, but no one is there. She hears music and the sound of thunder. She hangs up in a trance. Minutes later, she is dead.

Ginny Shapiro stares at the photograph of seven smiling schoolgirls from the exclusive Montgomery Academy. Six of them are dead. She is the only one still alive.
The phone rings. Ginny gets in her car and speeds away. Anywhere. Fast.
FBI agent Sullivan Dean has the photo, too — as well as information that came too late to save the others. Tracking Ginny down to an isolated cabin in Mississippi, he’s hell-bent on stopping her from becoming the final victim. What happened to those girls twenty years ago? The answer is locked deep in Ginny’s memory; the key is somewhere in the dangerous world of mind control, where a sound, a word, a voice, can trigger death. For Ginny and Sully, the world is closing in — and passion between them is exploding. But time is running out, and death is within arm’s reach…every time the phone rings.