When Steven Callahan's yacht sank six days into a transatlantic crossing, he found himself alone and adrift in a five foot inflatable raft facing storms, punishing heat, dehydration, hunger and sharks. It was over two months and 1800 miles later before his ordeal was to come to an end. Here, he presents a story of unimaginable horror and heroism - of a man staring a tortured death square in the face and surviving to tell the tale.