By this time, everything and, though most did not know it, everyone in a broad vicinity surrounding the chaplain's home in Kenosha had been looked at, inspected, examined, and investigated by the most discerning and discriminating of advanced instruments and techniques: the food, the drinking water from wells and the reservoir, the air they breathed, the sewage, the garbage. Every flush of a toilet was logged for analysis, and every disposal by a home garbage disposal unit. There was no evidence yet of a contamination related however remotely to the one of which he himself was still uniquely the possessor. Nowhere in Kenosha was a molecule to be found of deuterium oxide, or, in plainer language, heavy water.

"It began as a urinary problem," Chaplain Albert Taylor Tappman repeated still one more time.

"I've had those too," revealed the psychiatrist, and emitted a sigh. "But not, of course, like yours. If I had, I suppose I would be in quarantine here with you. You really don't know how you do it, or what you did to start it?"

The chaplain said so again with an apologetic stammer. He sat with his soft fists resting on his thighs, and this doctor seemed to believe him. His doctor at home had sensed something not normal right away and had taken a second specimen.

"I don't know, Albert. It still feels funny to me, sort of heavy."

"What's it mean, Hector?"

"I'm not sure, but I don't think you're allowed to do what you're doing without a government license. Let's see what the laboratory says. They might have to report it."

In no time at all the government agents moved into his house and swarmed all through it; then came the chemists, the physicists, the radiologists and urologists, the endocrinologists and gastroenterologists. In short order he was plumbed medically by every conceivable kind of specialist and environmentalist in a determined and comprehensive effort to find out where that extra hydrogen neutron was coming from in every molecule of water he passed. It was not in his perspiration. That was clean, as were the fluids everywhere else inside him.

Then came the interrogations, mannerly at first, then abusive and filled with connotations of brutality. Had he been drinking liquid hydrogen? Not to his knowledge. Oh, he would know it if he had been. He'd be dead.

"Then why are you asking me?"

It was a trick question, they crowed, cackling. They all smoked cigarettes and their hands were yellow. Liquid oxygen? He wouldn't even know where to get it.

He would have to know in order to drink it.

He didn't even know what it was.

Then how could he be sure he had not been drinking it?

They put that one down for the record too. It was another trick question.

"And you fell for it, Chaplain. That was good, Ace. Right, Butch?"

"You said it, Slugger."

There were three, and they insisted on knowing whether he had friends, wives, or children in any of the countries formerly behind the iron curtain or had any now in the CIA.

"I don't have any in the CIA either," said the psychiatrist. "I don't know how I'd defend myself if I did."

Right off, they had confiscated his passport and tapped his telephone. His mail was intercepted, his bank accounts were frozen. His safe-deposit box was padlocked. Worst of all, they had taken away his Social Security number.

"No checks?" exclaimed the psychiatrist in horror.

The checks were continuing, but the Social Security number was gone. Without it, he had no identity.

The psychiatrist went ashen and trembled. "I can guess how you must feel," he commiserated. w"I couldn't live without mine. And you really can't tell them how you do it?"

The chemical physicists and physical chemists ruled out an insect bite. The entomologists agreed.

At the beginning, people on the whole tended to be kind and patronizing and to handle him considerately. The medical men approached him amiably as both a curiosity and opportunity. In short order, however, the sociability of all but the psychiatrist and the general grew strained and thinner. Accumulating frustration shortened tolerance. Tempers turned raw and the consultations turned adversarial. This was especially true with the intelligence agents. They were not from the FEU and not from the CIA but from someplace deeper under cover. His inability to illuminate insulted, and he was censured for an obstinate refusal to yield explanations that he did not possess.

"You are being willful," said the biggest of the bullying interrogators.

"The reports all agree," said the thin, mean-looking, swarthy one with a sharp, crooked nose, manic eyes that seemed ignited by hilarity, small, irregular teeth stained brown with nicotine, and almost no lips.

"Chaplain," said the chubby one, who smiled and winked a lot with no hint of merriment and always smelled sourly of beer. "About radiation. Have you been, before we brought you here- and we want the truth, buddy boy, we'd rather have nothing if we can't have the truth, got that?-had you been absorbing radiation illegally?"

"How would I know, sir? What is illegal radiation?"

"Radiation that you don't know about and we do."

"As opposed to what?"

"Radiation that you don't know about and we do."

"I'm confused. I don't hear a difference."

"It's implied, in the way we say it."

"And you missed it. Add that one to the list."

"You got him on that one. By the balls, I'd say."

"That's enough, Ace. We'll continue tomorrow."

"Sure, General."

There was palpable insolence in the manner in which Ace spoke to the general, and the chaplain was embarrassed.

The officer in overall charge of the Wisconsin Project was General Leslie R. Groves, of the earlier Manhattan Project, which had developed the first atom bombs in 1945, and he gave every indication of being genuinely solicitous, warmhearted, and shielding. By now the chaplain was comfortable with him. He had learned much from General Groves about the rationale warranting his despotic incarceration and ceaseless surveillance, as well as the differences between fission and fusion and the three states of hydrogen with which he appeared to be meddling, or which were meddling with him. After hydrogen 1, there was deuterium, with an extra neutron in each atom, which combined with oxygen to form heavy water. And then came tritium, the radioactive gas with two extra neutrons, which was used as paint in self-illuminating gauges and clock faces, including those of the new line of novelty pornographic bedroom clocks that overnight had captured the lustful fancy of the nation, and to boost the detonating process in thermonuclear devices like hydrogen bombs containing lithium deuteride, a deuterium compound. The earliest of these bombs, set off in 1952, had produced a destructive force one thousand times greater-one thousand times greater, emphasized General Groves -than the bombs dropped on Japan. And where did that deuterium come from? Heavy water.

And he'd been flushing his away.

"What have you been doing with mine?"

"Sending it out to be turned into tritium," answered General Groves.

"See what you've been pissing away, Chaplain?"

"That will do now, Ace."

With General Groves at his side, the chaplain had stepped down once from his pullman apartment onto a small playground with squares of white concrete in back of a blank-faced pebblestone building with a cross on top that looked like an ancient Italian church. There was a basketball hoop and backboard raised on a wooden beam whose dark varnish looked recent and the pattern of a shuffleboard court on the ground in paint of flat green. A soccer ball in black and white stitched sections that gave it the look of a large molecular model primed to explode lay in the center as though waiting to be kicked. In a corner was a sun-browned vendor at a souvenir stand featuring picture postcards, newspapers, and sailors' hats of ocean blue with white piping and white letters spelling the word VENEZIA, and the chaplain wondered aloud if they really were in Venice. The general said they were not but that it made a nice change to think so. Despite the illusion of sky and fresh air, they were still indoors, underground.