Selly has saltwater in her veins. So when her father leaves her high and dry in the port of Kirkpool, she has no intention of riding out the winter at home while he sails to adventure in the north seas. But any plans to follow him are dashed when a handsome stranger with tell-tale magician's marks on his arms commandeers her ship under cover of darkness: He is Prince Leander of Alinor, and he needs to cross the Crescent Sea without detection so he can complete a ritual on the sacred Isles of the Gods.