This is a tale of murder and intrigue on the Great Lakes. The year is 1915, and Benjamin Corvet, founder of the ship-owning firm Corvet, Sherrill and Spearman, suddenly disappears, sparking events and questions that baffle even those who are close to him. Constance Sherrill, an attractive, sheltered young woman, feels strangely responsible for what may have happened to him - her father's best friend and coworker. Alan Conrad arrives in Chicago searching for his identity and an unknown benefactor and is swept into a maelstrom of mystery and intrigue that tests his intelligence and athleticism to the fullest. Henry Spearman, the firm's junior partner, is the most eligible bachelor along Chicago's Lake Shore Drive as a result of his catapult from ships' ranks to successful owner. When a ship sinks off the coast of Beaver Island in Michigan, the intertwining lives of these characters unlock the mystery of the disappearance of another ship twenty years earlier, in a riveting whodunit set on the stormy waters of the Great Lakes.