The colony of Roanoke, founded in the late 16th century, vanished without a trace, leaving behind a cryptic clue carved into a tree: the word CROATOAN. When English settlers returned to the island years later, they found no sign of the inhabitants, only deserted homes and overgrown land. Theories abound—ranging from integration with Native tribes to devastating storms or even something more sinister. To this day, Roanoke remains one of history’s most haunting mysteries.