There is a story about an ancient Egyptian princess, sometimes king, whose mummifed corpse continually changed hands, and was sent from Egypt to England, where the British Museum had it displyed for a while. Those who had either touched or been near the artifact, either died or suffered from near-fatal injuries. Apparently upon experiencing mysterious deaths of their own, the British Museum gave up displaying it and decided to ship it as far away as possible, and so sent it to New York... and the
Titanic took the artifact along on its maiden voyage. Obviously the artifact never arrived, but went down to the bottom of the ocean instead. This is just a rumour.
I first heard this story in Barbara Smith's
Canadian Ghost Stories, and from one search on google found many other versions of the tale as well. This is one of them:
http://www.catchpenny.org/titanic.html. Charles Pellegrino's account of the story, about half-way down, most closely resembles Barbara Smith's version, which is the one I mentioned above. Her's is an interesting one, as she includes another intriguing aspect, regarding author Morgan Robertson.