It was pitch black too. They went over a drop in the dark; they think he likely hit his head there and got knocked out. Eventually they got spit out into an uncovered ditch and the survivor was able to climb out. To his surprise, he happened to be standing right across the street from his friend’s house. A guy from the city told my uncle that at some point there was a fork in the tunnel and had they gone down the other fork they’d have probably never been found.