On Jan. 9, 2003, Australian officials found the Taiwanese ship High Aim 6 adrift off the West Australian coast. It had plenty of fuel, and the crew’s personal belongings were still aboard (including seven toothbrushes), but it was mysteriously empty, drawing comparisons to the Mary Celeste of 1872.

Authorities spent two days inspecting the vessel and conducted an aerial search of 7,300 square nautical miles, but they found no trace of the crew, who had last contacted the owners on Dec. 13 from the Marshall Islands, halfway between Papua New Guinea and Hawaii.

That’s all. The unwanted ship was finally sunk to serve as a fish habitat, but no one knows what happened to the crew.