Miro and Zia live in Aurora, a fishing town nestled in the shadow of an ancient castle. Miro lives in his books; Zia is never without her camera. The day they meet, they uncover a secret. The fishing works, the castle, and the town council are all linked to an ill-fated 1930s Antarctic expedition. But the diary of that journey has been hidden, and the sea is stirring up unusual creatures. Something has a powerful hold over the town.