Kal Moonheart faces her greatest challenge yet. On a freezing winter night, Kal is dragged from her bed by a friend in need. Renowned pirate and smuggler Lula Pearl has been struck with a fearsome curse, and Kal must join her and set sail on a dangerous voyage. On the other side of the world, the Auspice Islands have been overrun by a horde of evil creatures, led by a man whose terrifying schemes threaten all life both under and above the waves—the almighty sorcerer known as Corus Sirensbane.