Orthedrin, maxiton and glutamic acid—they were the prescription that made him king of his world! SK540, the 27th son of two very ordinary white laboratory rats, surveyed his world. He was no more able than any other rat to possess articulate speech, or to use his paws as hands. All he had was a brain which, relative to its size, was superior to any rat's that had hitherto appeared on Earth. It was enough. In the first week of gestation his embryo had been removed to a more suitable receptacle th