When her husband is taken and a threat to her people emerges, Princess Gabrielle Montoya of the Nightbringer clan does not hesitate to take action. Gypsy singer turned vampire, she is married to the prince of the clan. While searching for her beloved Avi, Gabrielle stumbles across a prophecy that may crumble everything and a new enemy bent on destroying the preternatural community surrounding her. With her most trusted friends, Gabby sets off on a mission to not only save her people but all of the creatures she interacts with along the way. As the nature of the Order of the Circle becomes more clear, an alliance is formed, and soon the prophecy shall be fulfilled.