When harsh winter weather brings flooding along the north Norfolk coast, bodies at the King's Lynn cemetery have to be moved to higher ground  disturbing a murder scene. Above the coffin of landlady Nora Tilden lies the body of a young black man, his skull shattered with a fisherman's billhook, dumped on the night Nora was buried, nearly three decades ago. At The Flask, the ancient former whaling pub now owned by Nora's daughter Lizzie, DI Peter Shaw and DS George Valentine discover that the murdered man was Pat Garrison, Lizzie's cousin  and the father of her son. And this is not the hostelry's only secret. Already uncomfortably bound by the ghosts of their own pasts, Shaw and Valentine begin to unravel Garrison's family links to a charismatic church and racist provocateurs, with all the simmering tribalism that created the febrile environment of his murder. But as soon as they have suspects in sight, Garrison gets company at the morgue. The third book into Kelly's Lynn-based series sees the author at the top of his game.