Joe Simpson and Simon Yates were the first people to climb the West Face of the Siula Grande in the Andes Mountains. They reached the top 1 , but on their way back conditions were very 2 . Joe fell and broke his leg. They both knew that if Simon 3 alone, he would probably get back safely. But Simon decided to risk his 4 and try to lower Joe down the mountain on a rope.
As they went down, the weather got worse. Then another 5 occurred. They couldn't see or hear each other and, 6 , Simon lowered his friend over the edge of a precipice(峭壁). It was 7 for Joe to climb back or for Simon to pull him up. Joe's 8 was pulling Simon slowly towards the precipice. 9 , after more than an hour in the dark and the icy cold, Simon had to make a decision. In tears, he cut the rope. Joe 10 into a huge crevasse(裂缝) in the ice below. He had no food or water and he was in terrible pain. He couldn't walk, but he 11 to get out of the crevasse and started to 12 towards their camp, nearly ten kilometres away.
Simon had 13 the camp at the foot of the mountain. He thought that Joe must be 14 , but he didn't want to leave immediately. Three days later, in the middle of the night, he heard Joe's voice. He couldn't 15 it. Joe was there, a few metres from their tent, still alive.
