She goes by many names including Mary Worth, Mary Jane, Mary Lou, Mary Worthington, Mary Whales and Mary Johnson. But you probably know her by another, more fearsome name: Bloody Mary.
Some say that Mary was a witch who, at the height of the infamous Salem Witch Trials, was burned alive and her charred body buried not far from where you are now. Others claim she was a beautiful hitchhiker who was killed not by a hook-handed maniac but instead in a horrific car accident. Before she died - if indeed she did die - she was badly mutilated.
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Whatever her otherworldly disposition, in order to meet her you must perform a ritual. It's a group activity in which members dare each other to perform the ritual, usually alone while others stand guard. The Bloody Mary ritual is what folklorists call a "fear test," or what most people simply call a dare.
There are many versions of the story, and the details change depending on the location, culture and era of those searching for her.