Skeletons don’t always lurk in cupboards, some of them hide under dance floors waiting for a particularly rousing party to dislodge them. Such is the story of one of Napoleon’s favourite generals, César Charles Étienne Gudin de La Sablonnière, whose missing remains were discovered under a dance floor in Smolensk in 2019, over 200 years after his death from a cannonball during the French invasion of Russia in 1812.