MacKayla Lane was just a child when she and her sister,Alina, were given up for adoption and banished from Ireland forever.

Twenty years later, Alina is dead and Mac has re-turned to the country that expelled them to hunt her sister's murderer. But after discovering that she descends from a bloodline both gifted and cursed, Mac is plunged into a secret history: an ancient conflict between humans and immortals who have lived concealed among us for thousands of years.