Lindsay Fleming of Tacoma, Washington, has married Jo of Carinna, a world set in a distant galaxy, and the couple is attempting to carve out a life for themselves on Jo’s planet.
However, nesting will have to wait. Frala, the leader of the Carinnian people, asks the two young ladies to investigate the disappearance of planets in their galaxy. It seems that an ancient evil, the Well of Nevermore, has somehow been resurrected and is now devouring planets. He asks them to find out what they can.
Lindsay and Jo’s search takes them to the farthest point of the universe where they encounter a shape-shifting siren, a living computer, and an old enemy intent on destroying all light and life. In a desperate race against time, Lindsay fights for what is most important to her: Earth, and the woman she loves.