She disappeared from a motel room. Three days later, the FBI found her beneath the Georgia countryside. And she was still alive. Barbara Mackle was just 20 years old when she was taken from a Decatur-area motel while recovering from the flu. The people responsible had planned something almost impossible to imagine. They placed Barbara inside a specially built wood-and-fiberglass box hidden underground. Inside were air tubes, a battery-powered fan, water, food and a light. Then the box was covered with earth. Their demand to her family: $500,000. While her father worked to deliver the ransom, Barbara had no way of knowing whether anyone would ever locate her. Hours became days. She couldn't stand up. She couldn't see what was happening above her. All she could do was conserve what she had and wait. After the ransom exchange, authorities received directions pointing them toward a wooded area outside Atlanta. FBI agents searched the red Georgia clay until they located the hidden box. About 83 hours after Barbara had been taken, they opened it. She emerged alive. The case still had one more remarkable twist. Gary Steven Krist was eventually captured, and his accomplice, Ruth Eisemann-Schier, went into hiding. She became the first woman ever placed on the FBI's Ten Most Wanted Fugitives list. She was eventually identified after submitting fingerprints while applying for a job in Oklahoma. Both were captured and imprisoned. Barbara later described her ordeal in a book with a title that says almost everything: 83 Hours 'Til Dawn. Sometimes the most unbelievable part of a survival story is simply that someone managed to keep going.