Mortal Attraction

Sapphire's only reminder of her best friend, Emmet, is a silver heart shaped necklace that he gave her as an apology after their first official fight. Emmet committed suicide, and after his death, Sapphire's mind has been plagued by a sinister voice that refuses to leave her alone. She can't recognize the voice, but what he says sends out a clear message. He wants her dead, too. Sapphire's world is turned into hell after she meets Zach, & he's apparently the only one who can save her. But is Zach really who he appears to be? Is Emmet really dead?