When the vampire Fenton discovers the hideout of the witches who kidnapped Skye's brother, the fae prince knows that he has to go with him to confront them. It will mean travelling into the unknown corners of the world, but with Fenton by his side, Skye knows that he'll be safe. Ash and his vampire lover Azrael have been safely returned to the Realm, but Ash quickly discovers that fae law forbids their relationship. Changing the law becomes an obsession, but even the king claims that it's unbreakable. The two brothers set off on separate journeys, both trying to do what they think is best for the Realm, but what they discover along the way will profoundly change them, and make them doubt everything that they thought they knew. Old alliances will falter, new enemies will emerge, and they will discover that there is good and bad on both sides. Ash learns that love against the odds isn't easy, and Skye fears that love alone might never be enough.