In the tradition of Shadow Divers, this is the gripping true account of the search for German U-boat U-550, the last unfound, diveable wreck of a U-boat off the United States coast, and the battle in which it was sunk.On April 16, 1944, the SS Pan Pennsylvania was torpedoed and sunk by the German submarine U-550 off the coast of Nantucket, Massachusetts. In return the sub was driven to the surface with depth charges, and then sen...

The horrific burning and sinking of the Castle was caused by negligent, indecisive, and even borderline criminal behavior on the part of her captain, crew, and by the management of the operating cruise line