The MV Sophia F. Janus was built, launched, and christened in 1977. It was among the first of 13 “thousand-footers” to sail the inland seas: 1013 feet long, 113 feet wide, 566 feet hull depth, containing 1,300 tons of oil for its four-story engine. It could carry more than 90,000 tons of cargo, with a crew of 23 souls. The ship was an innovative mixed-use tanker-bulk hauler, with three chemical tank holds and two bulk holds. It had a 250-foot discharge boom for the self-unloading of bulk cargo at a rate of 6,000 tons per hour. The vessel holds numerous cargo records. In the superstitious lore of the sailors, however, because a dock worker was crushed during launch, the Janus was considered cursed. Even the infinite dilution of the Great Lakes could not dissolve the stain of blood.

Communication was lost with the Janus in a storm in 1982, and it appeared to have sunk without a trace after leaving Duluth. No flotsam, oil slick, or fuel spill was discovered in the area of her last known location, which was the middle of Lake Superior.