He had the face of one who walks in his sleep, and for a wild moment the idea came to me that perhaps he was not normal, not altogether sane. There were people who had trances, I had surely heard of them, and they followed strange laws of which we could know nothing, they obeyed the tangled orders of their own sub-conscious minds. Perhaps he was one of them, and here we were within six feet of death.

Daphne du Maurier