In a tense, divided court, a young princess watches her mother struggle to hold the throne. On a remote coastal estate, a scholar finds a child washed up on the shore. Anne. Henry. A Christian princess of the royal blood. A pagan bastard, groomed all his hidden, lonely life to make a grab for the crown. In this work of stunning imagination, Kit Whitfield has written a fictional history at once familiar and alien. Since the ninth century, when the deepsmen invaded Venice, an uneasy alliance has held between the people of the land and the sea. That alliance was brokered by the warrior queen, Angelica, half landsman, half deepsman, the mother of the royal houses of Europe.Now, centuries later, no navy can cross the seas without allies in the ocean - and without deepsmen guarding its shores, no nation can withstand invasion. The hybrid kings keep the treaty between both sides, protecting their people from the threat of war. The royal blood is the key to peace, and ferociously protected. The penalties for any landsman who tries to breed with a deepsman are severe; the fate of any 'bastard' child, born of such an illegitimate union, is terrible. But the royal house of England is staggering, collapsing under the weight of centuries of inbreeding. Anne prays for guidance, a way into the future without hatred or bloodshed. Henry holds with fierce certainty that only the strong survive. But if either of them is to outlive the coming conflict, they may need more than faith alone...