A brilliant philosopher with a talent for self-destruction, Mason Ambrose gratefully accepts an offer no starving ethicist could refuse. He must travel to a private tropical island and tutor Londa Sabacthani, a beautiful, brilliant adolescent who has lost both her memory and her moral sense in a freak accident. Londa's soul is an empty vessel--and Mason's job will be to fill it. But all is not as it seems on Isla de Sangre. Londa's reclusive mother is secretly sheltering a second child whose conscience is a blank slate. Even as the mystery deepens, Mason confronts a frightening question: What will happen when Londa, her head crammed with lofty ideals and her bank account filled to bursting, ventures out to remake our fallen world in her own image?