New York Times bestselling author Romina Russell's epic sci-fi fantasy series ZODIAC reaches its breathtaking conclusion with THIRTEEN RISING, the highly anticipated fourth and final novel.

The master has been unmasked. Rho's world has been turned upside down. With her loved ones in peril and all the stars set against her, can the young Guardian from House Cancer muster the strength to keep fighting? Or has she finally found her match in a master whose ambition to rule knows no limits?