The mutant white rat had grown and mated, creating off-spring in its own image. They dominated the others, the dark-furred ones, who foraged for food and brought it back to "The Lair". Now the dark rats were restless, tormented by a craving they could not satisfy. But the white slug like thing that ruled them knew. Its two heads weaved to and fro and a stickiness drooled from its mouth as it remembered the taste of human flesh ...'Not for the nervous' - "Daily Mirror".