Southwest Britain, AD 43.
For the people of Caer Cad, ‘skin’ is their totem, their greeting, their ancestors, their land.
Ailia does not have skin. Abandoned at birth, she serves the Tribequeen of her township. Ailia is not permitted to marry, excluded from tribal ceremonies and, most devastatingly, forbidden to learn. But the Mothers, the tribal ancestors, have chosen her for another path.
Lured by the beautiful and enigmatic Taliesin, Ailia embarks on an unsanctioned journey to attain the knowledge that will protect her people from the most terrifying invaders they have ever faced.