On December 20, 1980, 19-year-old Jean Hilliard was driving home when her car skidded on an icy road and left her stranded. She found herself far from home, but since she knew someone who lived nearby, she decided to walk to the person’s house and ask for help. Jean was walking against the wind in freezing cold temperatures, soon she became really tired and collapsed. She was unconscious in the snow for six hours before she was found. The person who found her frozen body, took her to the hospital assuming she passed away, and described her face as “ghost-like.” But the story doesn’t end there. Watch the video and pay attention to the end, Jean became one of the most famous unsolved medical mysteries.