Throughout much of the world, the summer of 1816 was colder and darker than usual due to a massive cloud of dust released from a volcano the year previous. Famine and depression became everyday affairs.
A group of friends vacationing on the shore of Lake Geneva, kept inside by the dreary weather, entertained themselves by coming up with scary stories, an excellent pastime for such situations. The group included the famous poets Lord Byron and Percy Shelley, but the best story came from Shelley’s 18-year-old lover (and soon-to-be wife): Mary.