"There's going to be the biggest bust since man began scratching marks on rocks, that's what! And we're getting ready for it! I'm getting ready for it! We've got the land and we've got the men to farm it, and we'll get our hospital and we'll do research in ways to keep our animals and our people alive, and when the world goes into a tailspin we'll be alive and when it starves we'll be eating."

Suddenly he stopped and studied David with his eyes narrowed. "I said you'd leave here convinced that we've all gone mad. But you'll be back, David, my boy. You'll be back before the dogwoods bloom, because you'll see the signs."

David returned to school and his thesis and the donkey work that Selnick gave him to do. Celia didn't write, and he had no address for her. In response to his questions his mother admitted that no one had heard from her. In February in retaliation for the food embargo, Japan passed trade restrictions that made further United States trade with her impossible. Japan and China signed a mutual aid treaty. In March, Japan seized the Philippines, with their fields of rice, and China resumed its long-dormant trusteeship over the Indochina peninsula, with the rice paddies of Cambodia and Vietnam.

Cholera struck in Rome, Los Angeles, Galveston, and Savannah. Saudi Arabia, Kuwait, Jordan, and other Arab-bloc nations issued an ultimatum: the United States must guarantee a yearly ration of wheat to the Arab bloc and discontinue all aid to the state of Israel or there would be no oil for the United States or Europe. They refused to believe the United States could not meet their demands. International travel restrictions were imposed immediately, and the government, by presidential decree, formed a new department with cabinet status: the Bureau of Information.

The redbuds were hazy blurs of pink against the clear, May-softened sky when David returned home. He stopped by his house only long enough to change his clothes and get rid of his boxes of college mementos before he drove out to the Sumner farm, where Walt was staying while he oversaw the construction of his hospital.

Walt had an office downstairs. It was a clutter of books, notebooks, blueprints, correspondence. He greeted David as if he hadn't been away at all. "Look," he said. "This research of Semple and Frerrer, what do you know about it? The first generation of cloned mice showed no deviation, no variation in viability or potency, nor did the second or third, but with the fourth the viability decreased sharply. And there was a steady, and irreversible, slide to extinction. Why?"

David sat down hard and stared at Walt. "How did you get that?"

"Vlasic," Walt said. "We went to med school together. He went on in one direction, I in another. We've corresponded all these years. I asked him."

"You know his work?"