At first he couldn't find it - his hands were too cold. Then - yes! - it was beating.
For another five minutes he helped her breathe, until he was sure she could do it by herself. Then he began to shiver. The wind made his wet clothes clod on his body. He wondered what to do. Then he looked down, and saw that Christine's eyes were open.
'Chris,' he said. 'Are you all right?'
She said something, but very quietly and he could not hear it. He lay down, and put his arms around her, to keep her warm. He could feel her heart beating, and her body breathing under him. Simon began to cry.