Charlotte's best friend thinks Charlotte is psychic. Her boyfriend thinks she might be cheating on him. But Charlotte knows what's really wrong: She is one of the Forgotten, a kind of angel on earth, who feels the Need - a powerful, uncontrollable draw to help someone, usually a stranger. At seventeen, Charlotte finds the Need has virtually taken over her life, and it's becoming harder and harder to hide these compulsions-if anyone knew about it, they would think she was crazy. There have been other Forgottens, but they're gone - disappeared in a burst of light and erased from the memories of everyone whose lives they touched. This is the fate that awaits Charlotte. As everyone important in her life slowly begins to forget her, Charlotte has to decide if she'll fight the Need in order to remain herself - no matter how dark the consequences.