Three days later, after some very difficult climbing and bad weather, the two men stood at the summit. Unfortunately, the weather was etting worse so they didn't stay long As they were going down a mountain ridge, a disaster happened. Simpson fell and broke his knee. Quickly, Yates tied a rope to himself and then to his friend He began lowering Simpson down the mountain and, for hours and hours, Yates helped Simpson get down the mountain They were getting close to the glacier at the bottom of the mountain when Simpson suddenly slipped. This time he went over the edge of a cliff. He was hanging in mid-air. Simpson shouted up to Yates, but the wind was blowing loudly and Yates couldn't hear him