Max asked, " What catastrophe?"

Dr. Zollner continued walking and talking very breezily, I thought, considering the subject. He said, "Well, regarding animal diseases, an outbreak of foot-and-mouth disease, for instance, could wipe out much of this nation's livestock and ruin the livelihoods of millions of people. The cost of other foods would probably quadruple. The foot-and-mouth virus is perhaps the most contagious and virulent in nature, which is why the biological warfare people have always been fascinated by it. A good day for the bio-warfare gentlemen is a day when their scientists can genetically engineer the FMD virus to infect humans. But worse, I think, some of these viruses mutate on their own and become dangerous to people."

No one had a comment or question on that. We peeked in on more labs, and Zollner would always say a few encouraging words to the pale eggheads in white who labored in surroundings that made me nervous just looking at them. He'd say things like, "What have we learned today? Have we discovered anything new?" And so on. It appeared that he was well liked, or at least tolerated by his scientists.

As we turned down yet another in a series of seemingly endless corridors, Zollner continued his lecture. "In 1983, for instance, a highly contagious and deadly influenza broke out in Lancaster, Pennsylvania. There were seventeen million dead. Chickens, I mean. Poultry. But you see what I'm getting at. The last big deadly human influenza epidemic in the world was in 1918. There were about twenty million dead worldwide, including five hundred thousand in the United States. Based on our present population, the equivalent number of dead now would be approximately one and a half million people. Could you imagine such a thing today? And the 1918 virus wasn't particularly virulent, and of course, travel was much slower then and less frequent. Today, the highways and skyways can spread an infectious virus around the world in days. The good news about the deadliest viruses, such as Ebola, is that they kill so fast, they barely have time to leave an African village before everyone in it is dead."

I asked, "Is there a one o'clock ferry?"

Dr. Zollner laughed. "You are feeling somewhat nervous, yes? Nothing to fear here. We are very cautious. Very respectful of the little bugs in this building."

"Sounds like the 'my dog doesn't bite' crap."

Dr. Zollner ignored me and continued on, "It is the mission of the United States Department of Agriculture to prevent foreign animal pestilence from coming to these shores. We are the animal equivalent of the Centers for Disease Control in Atlanta. As you may imagine, we work closely with Atlanta because of these crossover diseases-animal to human, and vice versa. We have a huge quarantine complex in Newburgh, New York, where all animals coming into this country must stay in quarantine for a period of time. You know, it's like a Noah's Ark of animals arriving every day-foreign race horses, circus animals, zoo animals, breeding stock, exotic commercial animals such as ostriches and llamas, exotic pets such as Vietnamese potbellied pigs, and all sorts of birds from the jungle… Two and a half million animals each year." He looked at us and said, " Newburgh has been called the Ellis Island for the animal kingdom. Plum Island is the Alcatraz. No animal that comes to us from Newburgh or from anywhere leaves here alive. I must tell you, all these animals being imported into this country for recreation and amusement have caused us here a lot of work and much anxiety. It's only a matter of time…" He added, "You can extrapolate from the animal kingdom to the human population."

I certainly could.

He stayed silent a moment, then said, " Plum Island 's cannons once guarded the shores of this country, and now this facility does the same."

Rather poetic, I thought, for a scientist, then I recalled reading that line in one of the press releases that Donna handed me.

Zollner liked to talk, and my job is to listen, so, it was working out okay.

We walked into a room that Zollner said was an X-ray crystallography lab, and I wasn't about to argue with him.

A woman was bent over a microscope, and Zollner introduced her as Dr. Chen, a colleague and good friend of Tom and Judy. Dr. Chen was about thirty, and rather attractive, I thought, with a long shock of black hair, tied back with a sort of netting, suitable for close microscope work by day, I guess, and who knew what at night when the hair came down. Behave, Corey. This is a scientist, and she's a lot smarter than you are.

Dr. Chen greeted us, and she looked rather serious, I thought, but probably she was just upset and sad over the deaths of her friends.

Once again, Beth made sure that it was understood that I was a friend of the Gordons, and on that level, if no other, I was earning rny buck a week. I mean, people don't like a bunch of coppers hammering them with questions, but if one of the cops is a mutual friend of the deceased, then you have a little edge. Anyway, we all agreed that the Gordons' deaths were a tragedy, and we spoke well of the dead.

The subject shifted to Dr. Chen's work. She explained, in lay terms so that I sort of understood her, "I am able to X-ray virus crystals so that I can map their molecular structure. Once we do that, we can then attempt to alter the virus to make it unable to cause disease, but if we inject this altered virus into an animal, the animal may produce antibodies that we hope will attack the natural, disease-causing version of the virus."

Beth asked, "And this is what the Gordons were working on?"

"Yes."

"What specifically were they working on? What virus?"

Dr. Chen glanced at Dr. Zollner. I'm not happy when witnesses do that. I mean, it's like the pitcher gets the signal from the coach to throw a curve or a slider or whatever. Dr. Zollner must have signaled for a fast ball because Dr. Chen said straightforwardly, "Ebola."

No one said anything, then Dr. Zollner said, "Simian Ebola, of course. Monkey Ebola." He added, "I would have told you sooner, but I thought you'd want it explained more fully by one of the Gordons' colleagues." He nodded to Dr. Chen.

Dr. Chen continued, "The Gordons were trying to genetically alter a simian Ebola virus so that it would not cause disease, but would produce an immune response in the animal. There are many strains of the Ebola virus, and we're not even sure which strains can cross the species barrier-"

"You mean," Max asked, "infect people?"

"Yes, infect humans. But this is an important first step toward a human Ebola vaccine."

Dr. Zollner said, "Most of our work here has traditionally been done with what you'd call farm animals-food- and leather-producing animals. However, over the years, certain government agencies have underwritten other types of research."

I asked, "Such as the military doing biological warfare research?"

Dr. Zollner didn't answer directly, but said, "This island is a unique environment, isolated, but close to major transportation and communication centers, and also close to the best universities in the nation, and close to a highly educated pool of scientists. In addition, this facility is technically advanced. So, aside from the military, we work with other agencies, here and abroad, whenever something very unusual or potentially… dangerous to humans comes along. Such as Ebola."

"In other words," I said, "you sort of rent rooms here?"

"It's a big facility," he replied.

"Did the Gordons work for the U.S. Department of Agriculture?" I asked.

"I'm not at liberty to say."

"Where did their paychecks come from?"

"All paychecks are from the USDA."

"But not every scientist who gets a USDA paycheck is a USDA employee. Correct?"

"I don't intend to get into a semantic duel with you, Mr. Corey." He looked at Dr. Chen. "Please continue."