On a cold winter day Gillian Lennow almost dies...but she is saved by an angel. His hair is golden. His eyes are as violet as her own. And when Gillian comes back from her near-death experience, he comes to her. An invisible guardian that only Gillian can see, Angel whispers the secrets of popularity in her ear. Overnight, the once-shy Gillian becomes a sensation and David, the boy she has loved for years, finally notices her.

But then Angel begins to make bizarre demands, drawing Gillian into a world of risk and dark excitement. At last, she has to face the terrifying question: Who is Angel? What has he brought back from the Other Side? And can she and David find out his secret before it's too late?