His grandson wheeled him away to his bedroom, but first he gave me his iPad and opened a photo stream for me. I looked at the pictures while he was gone, then I looked at them again, and I was still looking at them when Brad came back. Seventeen photos, all taken from videos on the Internet, all of Chet Ondowsky in his various

[Pause]

His various incarnations, I guess you’d say. And an eighteenth. The one of Philip Hannigan outside the Pulse nightclub four years ago. No mustache, blond hair instead of dark, younger than in the security camera photo of George in his fake delivery uniform, but it was him, all right. Same face underneath. Same fox face. But not the same as Ondowsky. No way was he.

Brad came back with a bottle and two more jelly glasses. “Grampa’s whiskey,” he said. “Maker’s Mark. Do you want a little?” When I said no, he poured quite a bit into one of the glasses. “Well, I need some,” he said. “Did Grampa tell you I was gay? Terribly gay?”

I said he had, and Brad smiled.

“That’s how he starts every conversation about me,” he said. “He wants to get it right out front, on the record, to show he doesn’t mind. But of course he does. He loves me, but he does.”

When I said I felt sort of the same way about my mother, he smiled and said that we had something in common. I guess we do.

He said his grandfather had always been interested in what he called “the second world.” Stories about telepathy, ghosts, strange disappearances, lights in the sky. He said, “Some people collect stamps. My grampa collects stories about the second world. I had my doubts about all that stuff until this.”

He pointed at the iPad, where the picture of George was still on the screen. George with his package full of explosives, waiting to be buzzed into the Macready School office.

Brad said, “Now I think I could believe in anything from flying saucers to killer clowns. Because there really is a second world. It exists because people refuse to believe it’s there.”

I know that’s true, Ralph. And so do you. It’s how the thing we killed in Texas survived as long as it did.

I asked Brad to explain why his grandfather waited so long, although by then I had a pretty good idea.

He said his grandfather thought it was basically harmless. A kind of exotic chameleon, and if not the last of its species, then one of the last. It lives off grief and pain, maybe not a nice thing, but not so different from maggots living off decaying flesh or buzzards and vultures living off roadkill.

“Coyotes and hyenas live that way, too,” Brad said. “They’re the janitors of the animal kingdom. And are we really any better? Don’t people slow down for a good long look at an accident on the turnpike? That’s roadkill, too.”

I said that I always looked away. And said a prayer that the people involved in the accident would be all right.

He said if that was true, I was an exception. He said that most people like pain, as long as it’s not theirs. Then he said, “I suppose you don’t watch horror movies, either?”

Well, I do, Ralph, but those movies are make-believe. When the director calls cut, the girl who had her throat slashed by Jason or Freddy gets up and grabs a cup of coffee. But still, after this I may not…

[Pause]

Never mind, I don’t have time to ramble off the subject. Brad said, “For every clip of killings or disasters that Grampa and I have collected, there are hundreds more. Maybe thousands. News people have a saying: If it bleeds, it leads. That’s because the stories people are most interested in are bad news stories. Murders. Explosions. Car crashes. Earthquakes. Tidal waves. People like that stuff, and they like it even more now that there’s cell phone video. The security footage recorded inside Pulse, when Omar Mateen was still rampaging? That has millions of hits. Millions.”

He said Mr. Bell thought this rare creature was only doing what all the people who watch the news do: feeding on tragedy. The monster—he didn’t call it an outsider—was just fortunate enough to live longer by doing it. Mr. Bell was content to watch and marvel until he saw the security camera still of the Macready School bomber. He has that memory for faces, and he knew he’d seen a version of that face at some act of violence, not that long ago. It took Brad less than an hour to isolate Philip Hannigan.

“I’ve found the Macready School bomber three more times so far,” Brad said, and showed me pictures of the fox-faced man—always different but always George underneath—doing three different stand-ups. Hurricane Katrina in 2005. Illinois tornadoes in 2004. And the World Trade Center in 2001. “I’m sure there are more, but I haven’t had time enough to hunt them out.”

“Maybe it’s a different man,” I said. “Or creature.” I was thinking that if there were two—Ondowsky, and the one we killed in Texas—there might be three. Or four. Or a dozen. I remembered a show I saw on PBS about endangered species. Only sixty black rhinos left in the world, only seventy Amur leopards, but that’s a lot more than three.

“No,” Brad said. “It’s the same guy.”

I asked him how he could be so sure.

“Grampa used to do sketches for the police,” he said. “I sometimes do court-ordered wiretaps for them, and a few times I’ve miked up UCs. You know what those are?”

I did, of course. Undercovers.

“No more mikes under shirts,” Brad said. “We use bogus cufflinks or shirt buttons these days. I once put a mike in the B logo of a Red Sox hat. B for bug, get it? But that’s only part of what I do. Watch this.”

He pulled his chair close to mine so we could both see his iPad. He opened an app called VocaKnow. There were several files inside it. One was labeled Paul Freeman. He was the version of Ondowsky who reported the plane crash in 1960, you remember.

Brad pushed PLAY, and I heard Freeman’s voice, only crisper and clearer. Brad said he had cleaned the audio and dropped out the background noise. He called that sweetening the track. The voice came from the iPad’s speaker. On the screen, I could see the voice, the way you can see soundwaves at the bottom of your phone or tablet when you tap the little microphone icon to send an audio text message. Brad called that a spectrogram voiceprint, and he claims to be a certified voiceprint examiner. Has given testimony in court.

Can you see that force we talked about at work here, Ralph? I can. Grandfather and grandson. One good with pictures, the other good with voices. Without both, this thing, their outsider, would still be wearing his different faces and hiding in plain sight. Some people would call it chance, or coincidence, like picking the winning numbers in a lottery, but I don’t believe it. I can’t, and I don’t want to.

Brad put Freeman’s plane-crash audio on repeat. Next he opened the sound file for Ondowsky, reporting from the Macready School, and also put that one on repeat. The two voices overlapped each other, turning everything into meaningless gabble. Brad muted the sound and used his finger to separate the two spectrograms, Freeman on the top half of his iPad and Ondowsky on the bottom half.

“You see, don’t you?” he asked, and of course I did. The same peaks and valleys were running across both, almost in sync. There were a few minor differences, but it was basically the same voice, although the recordings had been made sixty years apart. I asked Brad how the two wave-forms could look so similar when Freeman and Ondowsky were saying different things.