During the 12th century, two children with green skin appeared in the English village of Woolpit. They were brother and sister, spoke a completely unknown language and only ate broad beans.

Eventually, they were coerced to eat other foods and learn English and they began to lose their green hue and explained that they were from Saint Martin’s Land; a subterranean community full of green people. The boy soon died and the girl became a servant in a household, but was shunned for her loose morals and wonton nature.

Normally, I’d say this is a tall tale, but plenty of writers have mentioned this story in separate accounts, with no link to each other. So, something funky must have happened in Woolpit.