Something isn't right at Guardian Castle, and Aine can't figure out what. As Healer, she's supposed to be making things better, but there's a darkness that can't be brightened. And then Aine finds an injured Fomorian-winged, dark, blood-thirsty and inherently evil. Or is he? Because there's something about Tegan that Aine can't resist…and once they've shared blood, Aine realizes that everything she's always believed is going to be cast aside…

Torn between the possibilities… Fleeing her centaur clan's increasingly militant beliefs, Brighid Dhianna has begun to find peace and acceptance among the humans of Clan MacCallan. Still, she agrees to leave her newly formed friendships to guide her clan chieftain's grieving brother home. As she journeys, Brighid discovers that the long-dormant Shaman blood that runs so thickly in her veins will no longer be silenced. As seductive new powers begin to beckon, Brighid glimpses a future that is more impossible – and more magical – than any she could have dared to imagine. But when tragedy summons her back to the Centaur Plains, Brighid must make a decision that will affect not only her friendship with the humans, but the centaur herd and indeed the world. For the Great Goddess Epona has set her on a new path that demands everything she has to give. When the whole world is turning to her for help, healing the heart of a warrior doesn't sound so daunting…