"Vacationing in the Apostle Islands on Lake Superior, Mary Whitney and Michael Tanner discover a brass plate from a marine engine during a dive. Their idle curiosity about the submerged steamer and the mysterious cargo it may have carried turns dangerous when a series of seemingly unconnected accidents and murders find their point of focus at the site of the shipwreck. As the duo struggle to make sense of t ...Full description
"Vacationing in the Apostle Islands on Lake Superior, Mary Whitney and Michael Tanner discover a brass plate from a marine engine during a dive. Their idle curiosity about the submerged steamer and the mysterious cargo it may have carried turns dangerous when a series of seemingly unconnected accidents and murders find their point of focus at the site of the shipwreck. As the duo struggle to make sense of the clues, including a letter found in the archives of the Minnesota Historical Society that threatens to expose long-forgotten corruption in the shipping industry, descendants of the families involved are at work trying to make sure the discoveries Michael and Mary make never see the light of day."--Page 4 of cover.