The oceans of the world have always been, and still are, wellsprings of seemingly infinite mysteries and the unknown. One very pervasive enigma of the sea is its habit of swallowing up people and things without a trace. History is steeped in tales of ships, planes, submersibles, and swimmers who have ventured out into this vast, churning place, only to slip over the horizon and out of existence without a clue as to what happened to them. Yet for as odd as all of the cases of these unexplained vanishings are
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