This week I'm concluding my Spooktober series by covering the story of the mysterious "ghost ship" Mary Celeste. The Mary Celeste was discovered adrift and unmanned around 400 nautical miles from the Azores Islands in December of 1872. The last recording in the ships log had been made some nine days before and it appeared that, since then, the ship had been sailing itself. But what happened to Captain Briggs, his wife Sarah, and their two year old daughter Sophia? What happened to the other s...