Taking responsibility for Pasang—stranded without an axe, on the deadliest pitch of K2, on a moonless night, without a rope, beneath crumbling seracs—wasn’t rational. But Chhiring never doubted that it was the right thing to do. Sonam, the Buddhist concept of virtue, is nonnegotiable, particularly on K2, so near a goddess who could influence his next reincarnation. She was watching and expected him to show compassion. He expected it of himself.