One of the most unique crime series ever continues with a missing persons investigation. Cal McGill is the sea detective: an oceanographer and one-of-a-kind investigator who uses his knowledge of the waves to find where objects came from, or track where they've gone. For five years Priest's Island has guarded the mystery of Max Wheeler's disappearance. In this isolated township on the edge of the Atlantic, there are no secrets -- except what really happened to fourteen-year-old Max. Now Cal McGill has taken up the quest. A grieving father, a community riven by tragedy -- and resentful of the suspicion -- all make a powderkeg of secrets and vengeance ready to explode.