On Nov. 25, 1809, British diplomat Benjamin Bathurst was preparing to leave the small German town of Perleberg. He stood outside the inn, watching his portmanteau being loaded onto the carriage, stepped out of the light, and was never seen again.

A nearby river was dragged, and outbuildings, woods, ditches, and marshes were searched, but no trace of Bathurst was ever found. A reward was offered for information, but none came forth.

Bathurst had been urging Austria into war against the French, but Napoleon swore on his honor that he had played no part in the disappearance. The mystery has never been solved.