Wendy guided his hands across her body from her breasts to her stomach and pubis. Gently he caressed her as she lowered her face to his, moving her hips in slow deliberate cadence to the music. She hadn't been this romantically aggressive in years.

The scent of her perfume filled his head. He kissed her and felt himself flood with sensations that rose up from a distant time. Suddenly he was back in their cramped little apartment in Cambridge where they had settled after marriage. She had just gotten her masters in English at Tufts, and he had finished his postdoc at Harvard. Greener days, when their passion seemed endless, and the sun sat idle in the sky.

"You're not wearing a diaphragm."

"That's right."

"Is it safe?"

"No."

"Isn't that taking a big chance?"

"Yes." She took his face in her hands. "Let's have a baby."

"What?"

"You heard me."

"Wendy, a-are you sure, I mean…?"

She put a finger to his mouth. "Yes, I'm sure. Very."

"But we should maybe think about it, talk it over. I mean, we're forty-two. Aren't we a little long in the tooth?"

"But young at heart."

She was smiling and her eyes were radiant-as if a light had gone on inside of them, one long-extinguished. He wanted to ask what had brought on the change of heart, what magical snap of the fingers had ended the dark spell. Maybe it was four days of Abigail in the house.

"I want another baby. I do. Really."

His mind raced to catch hold of any objections but found none. For years he had wanted another child, but two miscarriages and Ricky's death had the effect of a long-acting poison. Wendy had refused to take another chance; he had complied, and had fallen into the mindset of remaining childless the rest of their lives.

She kissed him warmly and grinned. "What do you say?"

"Yeah, sure," he whispered.

"I love you."

He slipped himself into her and pulled her face to his. "I love you. Oh, do I ever!"

A moment later, they were in tight embrace and moving in rhythm to an all-but-forgotten love song.

"Christ!"

Quentin sat in his office hunched over the computer. Everybody else had gone for the day.

Three weeks ago he had wired Antoine $2.5 million for a single ton of apricot pits, and another two hundred thousand to Vince. He felt sick. He had juggled the books to disguise profits from a neuropeptide and other products sold to a Swiss firm. But his problems weren't over. In six months he'd have to pay another $2.5 million unless Chris Bacon's lab had some kind of breakthrough, which didn't seem likely. The only good news was that Ross's press on Reagan had paid off with the FDA giving top priority to expediting Veratox.

For nearly an hour Quentin had been studying financial records on the toxogen, nearly sick at how they had spent millions of research-and-development dollars for a compound too expensive to manufacture.

But as he scrolled the figures, something caught his eye that made no sense.

Over a six-year period, they had purchased some nine hundred mice from Jackson Labs in Maine -most for Chris Bacon's group. What bothered Quentin were the dates and prices. According to the catalogue he found in the office library, Jackson raised hundreds of different hybrid mice bred with any number of genetic mutations or biomedical conditions-diabetes, leukemia, hepatitis, etc.-including certain cancers.

There had to be some mistake. The average price for a mouse with malignant cancers was about four dollars-the price paid for some three hundred over the years. However, Darby's records showed that they had also ordered a breed listed as "special mutant" which at $170 each was the most expensive mouse in the catalogue by a factor of five. And over a six-year period they had purchased 582 of them, totaling nearly $99,000.

The signature on each was Christopher Bacon's.

But what held Quentin's attention was the catalogue notation: "Shortest-lived breed-Gerontology studies."

It was a quiet Friday morning a few weeks later when the envelope arrived. Chris had taken the day off because he was burned out. In seven months, sometimes working twelve hours a day, he had increased the yield of Veratox by a thousandth of a percent. The synthesis could not be done-not with the science he and his team knew. Wendy was seeing her doctor. She had missed her period, but she wanted to be sure because drugstore kits were not foolproof.

The envelope, whose postmark said Canton, Ohio, contained a small card and a newspaper clipping dated last month.

Canton, Ohio. Medical authorities are baffled by the unexplainable death of a former Ohio man, Dexter Quinn, who died while eating at the Casa Loma restaurant.

According to eyewitnesses, Quinn, 62, a recent retiree from a pharmaceutical company in Massachusetts, was just finishing dinner when he apparently experienced convulsions. Patrons and staff tried to aid the man, but Quinn appeared to rapidly age. "When it was over, he looked ninety years old, all wrinkled and scrunched up," reported Virginia Lawrence, who had sat in a nearby booth. "It was horrible. He just shriveled up like that."

Even more bizarre, several witnesses say that before the strange affliction, Quinn looked considerably younger than his age. "I thought he was about forty," said waiter Nick Hoffman. Karen Kimball, proprietor of the Casa Loma, who had served Mr. Quinn was too distraught to take questions.

According to George Megrich, the medical examiner who performed the autopsy, "no unusual chemicals signatures" were found in Quinn's system. But he did say that his internal organs resembled those of the elderly. "His prostate gland was greatly enlarged, and his liver and kidneys had the color and density associated with dysfunctions of older people."

Baffled, Megrich speculated that Quinn had died of some virulent form of Werner's syndrome, a rare genetic disorder that causes victims to age abnormally fast. "Fifty years of aging can be compressed into fifteen years," Megrich said, "but not fifteen minutes. Frankly, I have no idea what happened to this man. It's very very weird…"

"A medical card in his wallet had your name on the back." The card was signed: "Karen Kimball, an old friend of Dexter's."

Chris felt himself grow faint. He thought about flying out to consult with the doctor and medical examiner. But he knew what had happened.

No virus, no plague, no known diseases.

It was tabulone. Dexter Quinn had tried it on himself.

Veratox was the lead story on the eleven o'clock news. With Wendy beside him, Chris tried to lose himself in the report, but his mind was elsewhere-stuck in a booth in a restaurant in Canton, Ohio. He had told her how he had just learned of Dexter's death, but did not show her the news clipping. He simply said it was a heart attack.

You want to know when you're old? When all that's left is the countdown.

Chris tried to convince himself that he just wanted to spare Wendy the horror. But deep down he knew the real reason. Wendy was dead set against the tabulone project. The truth would only confirm her revulsion.

What bothered him even more was how he had let his life split into a kind of dual existence-one open, the other hidden. Like Jekyll and Hyde.

The Channel 5 anchor announced that the FDA had approved a new and highly successful treatment for cancer called Veratox to be marketed by Lexington 's own Darby Pharmaceuticals. It went on to describe the unprecedented results with malignant tumors. The report jumped from supermarket shots of apricots to cancer patients at the Massachusetts General Hospital to an interview with the head of oncology holding forth on what a miracle compound Veratox was.