Confucius once said, "Before you embark on a journey of revenge, dig two graves." Confucius was wrong. A widower at just fifty years old, one lost, lonely, and increasingly obsessed man seemingly finds salvation in the ancient Scottish sport of curling, until it unexpectedly takes him down a much different and darker path. A path through present-day Belfast, Maine; 1880s Scotland; and to the remote, volcanic island of Ailsa Craig,...