Mysteries at the Museum Season 4 Episode 11 The Conqueror's Curse, Play-Doh, Poe Murder ( Air Date 2013-02-28 ) Genre Documentary category. Overview "Don Wildman examines a dress worn by the star of an infamous Hollywood movie with a cursed past, a lump of gray clay that spawned one of America’s most iconic toys, and a faded brown document from a murder case that inspired a chilling literary classic.".