When evil knows your mind, fight it with your heart. Trapped for centuries inside mortal minds, a manipulative daeva with a grudge against humanity finally finds a host he can use to set himself free into the world. Sharon, the host's sister, works tirelessly to help her brother resist the daeva's influence, but by the time she fully understands the threat to mankind, she's become the key to the daeva's success. Her death will either empower the daeva or destroy him.