Rinette's first memories are of waking up in the smoking crater of a massive asteroid impact. She is the product of a collision between an alien and a human, merged together at the point of death to make an entirely new life form. She may have some idea where she comes from, but where is she going? Who is she now? These are questions she'll have to find the answer to on her own. And she'd better hurry, because there are other forces converging upon her with questions of their own, and they'll stop at nothing to find the answers.