The tall doctor stood up and walked to the window. "We don't know why it's happening, but it is. Something's on the march, something ghastly and evil among the people. Something that has to be stopped." He gave the cards a sharp riffle and tossed them onto the desk with a sigh. "We can't stop it until we know something about the human brain and how it works, and why it does what it does, and how. We don't even understand fully the structure of the nervous system, much less understand its function. And we've learned all we can from cats and dogs and monkeys. Any further study of a monkey's brain will give us great insight into the neuroses and complexes of monkeys, no doubt. But it won't teach us anything more about _men_." His voice was very soft. "You can see where this leads, I think." Jeff Meyer nodded slowly. "You need men," he said. "We need men. Men to study. Cruel as it may sound, men to experiment upon. We can't learn any more from any other variety of ... experimental animal. But there are problems. Toy around with a man's brain and he is likely to die, quite abruptly. Or he may be deranged, or he may go violently insane. Most of the work, however well planned, however certain we were of results, however safe it appeared, proved to be completely unpredictable. Much of the work and many of the results were quite horrible. But we're making progress, slow--but progress nonetheless. So the work continues. "It hasn't been very popular. No man in his right mind would volunteer for such a job. So we hired men. For the most truly altruistic work in the world, our workers come with the most mercenary of motives: we pay for their services and we pay well. A hundred thousand dollars is a small fee, on our scale. We have the government behind us. The sky is the limit, if we need a man for a job. The money is paid, when the work is completed, either to the man himself or to his heirs. You see why the name they've given themselves is so curious--Medical Mercenaries, the 'Mercy Men.' That's why a man must be desperate to come to us. That's why we must be so very careful who joins us, for what motives." Jeff Meyer stared at his hands and waited in the silence of the room. His eyes strayed once again to the curious cards, and the chill of fear went through him like a ghastly breeze. This was a port of last resort, a road that could end in horror and death. Ted Bahr had said it wasn't worth it--that Conroe would never escape alive--but he knew that Conroe could. And he knew Conroe well enough to know that he would.