I gripped my right ear and twisted, which is how I tune out idiots. With Stevens' voice now far away, I looked out at the beautiful blue morning. The New London ferry was inbound and passed us off our left side, which I happen to know is called the port side. The one and a half miles of water between Orient Point and Plum Island is known as Plum Gut, another nautical term. There are a lot of nautical terms out here, and they give me a headache sometimes. I mean, what's wrong with regular English?

Anyway, I know that the Gut is a place where the currents get bad because the Long Island Sound and the open Atlantic sort of smack together in the Gut. I was with the Gordons once, in their speedboat, when we got into a situation right about here with the wind, the tide, and the currents slapping the boat around. I really don't need a day like that on the water, if you know what I mean.

But today was okay, and the Gut was calm and the boat was big. There was a little rocking, but I guess that can't be helped on the water, which is basically liquid and nowhere near as reliable as blacktop.

Well, it was a nice view from out here, and while Mr. Stevens was flapping his gums, I watched a big osprey circling. These things are weird, I mean totally crazy birds. I watched this guy circling, looking for breakfast, then he spotted it, and began this insane kamikaze dive into the water, shrieking like his balls were on fire, then he hit the water, disappeared, then shot up and out like he had a rocket up his ass. In his talons was a silver fish who'd been just paddling along down there, chomping minnows or something, and whoosh, he's airborne, about to slide down the gullet of this crazy bird. I mean, the silver fish maybe has a wife, kids, and whatever, and he goes out for a little breakfast and before he can bat an eye, he is breakfast. Survival of the fittest and all that. Awesome. Totally.

We were about a quarter mile from Plum Island when a strange but familiar noise caught our attention. Then we saw it-a big white helicopter with red Coast Guard markings passed us off our starboard side. The guy was going low and slow, and leaning out the door of the helicopter was a man, secured by straps or something. The man was wearing a uniform, a radio helmet, and was carrying a rifle.

Mr. Stevens commented, "That's the deer patrol." He explained, "As a purely precautionary measure, we look for deer that might swim to or from Plum Island."

No one spoke.

Mr. Stevens thought he should expand on that, and said, "Deer are incredibly strong swimmers, and they've been known to swim to Plum from Orient and even Gardiners Island, and Shelter Island, which is seven miles away. We discourage deer from taking up residence or even visiting Plum Island."

"Unless," I pointed out, "they sign the form."

Mr. Stevens smiled again. He liked me. He liked the Gordons, too, and look what happened to them.

Beth asked Mr. Stevens, "Why do you discourage deer from swimming to the island?"

"Well… we have what's called a 'Never Leave' policy. That is, whatever comes on the island may never leave unless it's decontaminated. That includes us when we leave later. Big items that can't be decontaminated, such as cars, trucks, lab equipment, construction debris, garbage, and so forth never leave the island."

Again, no one spoke.

Mr. Stevens, realizing he'd frightened the tourists, said, "I don't mean to suggest the island is contaminated."

"Fooled me," I admitted.

"Well, I should explain-there are five levels of biohazard on the island, or I should say, five zones. Level One or Zone One is the ambient air, all the places outside the biocontainment laboratories, which is safe. Zone Two is the shower area between the locker rooms and the laboratories and also some low-contagion workplaces. You'll see this later. Then Level Three is the biocontainment labs where they work with infectious diseases. Level Four is deeper into the building and includes the pens where diseased animals are held, and also where the incinerators and dissection rooms are." He looked at each of us to see if he had our attention, which he most certainly did, and continued, "Recently, we have added a Level Five capability, which is the highest biocontainment level. There are not many Level Five facilities in the world. We added this one because some of the organisms we were receiving from places such as Africa and the Amazon jungle were more virulent than suspected." He looked at each of us and said, sort of sotto voce, "In other words, we were getting blood and tissue samples infected with Ebola."

I said, "I think we can go back now."

Everyone smiled and tried to laugh. Ha, ha. Not funny.

Mr. Stevens continued, "The new laboratory is a state-of-the-art containment facility, but there was a time when we had the old post-World War Two facility, and that wasn't, unfortunately, as safe. So, at that time, we adopted the 'Never Leave' policy as a precaution against spreading infection to the mainland. The policy is still officially in effect, but it's somewhat relaxed. Still, we don't like things and people traveling too freely between the island and the mainland without being decontaminated. That, of course, includes deer."

Beth asked again, "But why?"

"Why? Because they might pick up something on the island."

"Like what?" I asked. "A bad attitude?"

Mr. Stevens smiled and replied, "Maybe a bad cold."

Beth asked, "Do you kill the deer?"

"Yes."

No one spoke for a long moment, then I asked, "How about birds?"

Mr. Stevens nodded and replied, "Birds could be a problem."

I asked my follow-up question, "And mosquitoes?"

"Oh, yes, mosquitoes could be a problem. But you must remember that all lab animals are kept indoors, and all experiments are done in negative air pressure biocontainment labs. Nothing can escape."

Max asked, "How do you know?"

Mr. Stevens replied, "Because you're still alive."

On that optimistic note, while Sylvester Maxwell contemplated being compared to a canary in a coal mine, Mr. Stevens said, "When we disembark, please stay with me at all times."

Hey, Paul, I wouldn't have it any other way.

As we approached the island, The Plum Runner slowed. I stood, went to the port side, and leaned against the rail. To my left, the old stone Plum Island Lighthouse came into view, and I recognized it because it was a favorite subject of bad watercolor artists around here. To the right of the lighthouse, down by the shore, was a big billboard-sized sign that said, "CAUTION! CABLE CROSSING! NO TRAWLING! NO DREDGING!"

So, if terrorists were interested in knocking out power and communications to Plum Island, the authorities gave them a little hint. On the other hand, to be fair, I assumed Plum had its own emergency generators plus cell phones and radios.

Anyway, The Plum Runner slipped through this narrow channel and into a small cove which looked artificial, as though it had been called into being, not by God Almighty, but by the Army Corps of Engineers, who liked to put the finishing touches on Creation.

There weren't many buildings around the cove, just a few tin warehouse-type structures, probably left over from the military days.

Beth came up beside me and said softly, "Before you got to the ferry, I saw-"

"I was there. I saw it. Thanks."

The ferry did a one-eighty and backed into the slip.

My colleagues were standing at the rail now, and Mr. Stevens said, "We'll wait until the employees disembark."

I asked him, "Is this an artificial harbor?" He replied, "Yes, it is. The Army constructed it when they built the artillery batteries here before the Spanish-American War."