A locked room. A family built on secrets. A storm that won't let anyone leave until the truth does.
Four generations of the Whitlock family have called Amber Hollow Island home, a private barrier island off the Georgia coast, reachable only by a narrow causeway that the county closes the moment real weather threatens. When Hurricane Odette veers unexpectedly toward the coast, that causeway floods hours ahead of schedule, and seven people, family, staff, and one unlucky resort developer, find themselves trapped inside Hollow House for the night.
By the time the storm's eye passes and the second wall of wind arrives, patriarch Augustus Whitlock is dead in his study. The door is locked from the inside. The storm shutters are sealed tight. And no one can explain how anyone got in, or out.
As the family turns on each other, old grievances surface fast: a grandson drowning in secret debt, a granddaughter who benefits a little too neatly from a will that was never signed, a resort deal that was supposed to save the family and might have gotten someone killed instead.
But the real answer has been quietly serving this family's coffee for twenty-two years.
Deputy Callum Reyes has his own history with this island, one he hasn't let himself think about in decades, and when he finally crosses the flooded causeway to investigate, what he uncovers isn't just a locked-room murder. It's a twenty-four-year-old debt that this family has spent generations pretending it didn't owe.
Perfect for fans of Lucy Foley, Ruth Ware, and Alex Michaelides, The Last Causeway is a slow-burn, ensemble locked-room mystery about the price of silence, and what happens when a storm finally makes it impossible to keep paying it.