A Semi-Finalist for the 2022 Clue Book Awards for Suspense/Thrillers. A Coast Guard surfboat is found adrift in the Canadian waters of Lake Superior. The four-member crew is missing. The crew made no distress calls, and the boat's emergency distress beacon was not activated. Merchant freighters passing through the area reported nothing unusual. Facing other challenges from Congress and other nations, the Coast Guard's commandant summons a Coast Guard special agent to investigate the disappearance. The investigation uncovers a smuggling operation that threatens to disrupt a vital international shipping route through the Great Lakes.