Welcome to the Night Realm, one of the seven magical realms of Faery and home to the lunar fae... and to a human girl called Astora. Raised from infancy by the Folk, the Night Realm and faerie ways are all she has ever known. Until now... In an effort to strengthen the realm, the Night Queen has invited the vampires and werewolves to Faery to negotiate an alliance. And rumor has it that her son, the exiled Nightmare Prince, has returned to court for the negotiations. A blue moon has risen on the eve of their arrival, which can mean only one thing... Change is imminent.