Brinn Kiernan is an immortal living in a human body. The problem? She doesn't know it. She must find a cure to the symptoms that plague her before they end her life. She must also dodge attacks on her life by her estranged and immortal, identical twin sister. Meanwhile she is distracted by Jack and his electric touch as well as Seth and his hypnotizing, shimmering eyes. Will her human body give out on her before she finds the cure or in her distraction, will her sister get to her first?