The women are the heroes. They are the ones called to serve the unicorns in their time of need. One a scholar, one a Lady of station, one a street rat, one a prostitute, and one an ascetic. All have been called by the first woman, Lilith, to save the life of the only creature to join her in her exile, the unicorn. Each have chosen to risk their lives and souls in their attempt to return to Eden where it was hidden at the dawn of time. There they hope to find the tree of life.