He tried to explain and to convince. He knew, while he spoke, that it was useless, because his words sounded as if they were hitting a vacuum. There was no such person as Mrs. Wayne Wilmot; there was only a shell containing the opinions of her friends, the picture postcards she had seen, the novels of country squires she had read; it was this that he had to address, this immateriality which could not hear him or answer, deaf and impersonal like a wad of cotton.