In 12th-century England, two children reportedly emerged from a pit near the village of Woolpit—strange visitors with green skin, unfamiliar speech, and a taste for food no one else would eat. Their story, known as the Green Children of Woolpit, has puzzled historians and mystery seekers for centuries. Were they lost travelers from a distant land, victims of illness and hardship, or something far more inexplicable? In this episode of Codename Unknown: Mysteries, Conspiracies & Legends, we trace the medieval accounts, examine the details that make the tale endure, and weigh grounded explanations against more extraordinary theories. Along the way, we ask how folklore, memory, and unanswered questions shape the stories we inherit. Join us for a curious, balanced exploration of one of medieval history’s strangest mysteries—and decide for yourself what might have happened in Woolpit.