Another murder. Another mystery. The brand new thriller from the No. 1 Sunday Times bestselling author of The Hunting Party. On a remote island, guests gather for the wedding of the year the marriage of Jules Keegan and Will Slater. Old friends. Past grudges. Happy families. Hidden jealousies. Thirteen guests. The wedding cake has barely been cut when one of the guests is found dead. And as a storm unleashes its fury on the island, everyone is trapped. All have a secret. All have a motive.