Light days, dark secrets. Spring on Whalsay: the wind sweeps over the old stone houses, and the days on the barren Shetland island are getting longer again. Archaeologist Hattie is glad to resume her excavations after the winter break. Until she discovers a skeleton on the land of the old Mima. Shortly after, Mima is dead, supposedly from a hunting accident. Detective Jimmy Perez isn't so sure about that. And soon after, another murder occurs. What secret is hidden in the small community of deep-sea fishermen in the far north? The third installment of the successful Shetland Quartet.