On the gray edge of the Irish Sea, hospital chaplain Selina Amegashie is called after midnight to perform last rites for Eamon Barrow, the reclusive shipbreaking magnate who built Barrow-in-Furness on debt, steel, and a thousand quiet favors. In a curtained bay at Furness General, his mottled hand clamps her wrist, a cracked St. Christopher medal grinding into her palm as he rasps, "The altar is in the dry dock." By dawn he is gone, and the family—polished granddaughter Lottie, tight-lipped solicitor Maeve Kincaid, and watchful security chief Victor Preece—moves like a tide through the hospital corridors, all polite smiles and locked doors. Back on Roa Island, in a slate-roofed house filled with ship models and the smell of diesel and salt, the town’s myths calcify into warnings: the missing diver who mapped the estuary and never came home; the union steward who stopped talking; the chapel bell on Piel Island that rings even when the sea is still.
Selina can’t ignore Barrow’s last words. Clues surface in ledger fragments smuggled inside a hymn book, in a rusted buoy half-buried on the foreshore, in an old ferry timetable that doesn’t match the tide charts. They point to a wreck and a payout, to witnesses turned recluses, to a town built on an old disaster laundered as charity. But going to the police would mean handing over everything—including the one thing she’s kept buried: two years ago, to keep her post and her visa, Selina altered an incident log after a sedation error in Accra that left a family grieving. If that comes out, she loses her collar, her clearance, her life here. And someone else knows. Because the truth about Barrow isn’t only sunk in the channel; it’s patrolled by men who prefer the sea to do their cleaning. As a storm tears at Walney Channel and the dry dock empties like a vein, Selina must choose: protect herself, or ring the bell that will bring the whole harbor down—before she becomes the next voice swallowed by the tide.