"He opened his mouth. The words were there. He was about to say them when a jolt of terror went through him, the terror of someone who, wandering in a mist, pauses only to realise that they have stopped inches from the edge of a gaping abyss. The way she was looking at him - she could read what was in his eyes, he realised. It must have been written plainly there, like words on the page of a book. There had been no time, no chance, to hide it.