"What happened?" I croaked.

"While I was showing you around the basement at our retreat, there was a small tremor and a minor geyser broke through the floor. You were injured. I managed to surround you with a stasis field and bring you to the Med-Center here for treatment."

"I see. Was there much damage?" I asked carefully.

"Some minor works that had been sitting around for a long time fell into a crevice," she replied evenly.

I looked at her sharply. She met my gaze without flinching. The doctors murmured about tissue grafts. I asked, "Were all the works in that area destroyed?"

"Yes," she answered bluntly.

"You don't seem to be affected by the loss."

"Mr. Scalpel, when one is forced to confront one's feelings…it's been forty years since I stopped doing that kind of work. It was done by a different woman. I realized that I no longer had any feelings at all…for the works themselves. My anxieties were just residue that had been accumulating over the years. Now that the situation is resolved, I feel cleansed. and my stasis has been dispelled. Isn't that what you wanted?"

My mind was clearing a little from the adrenaline rush of the panic that for me was only a few seconds gone. I wondered how much real time had passed since the stasis field swallowed me. I wondered what had happened while I was silver-sleeping. I wondered if my abortive attempt at cutting open a chest had really killed all those children. "How do I know that all of the works fell into the crevice by accident?"

Vavash smiled without warmth. "If you are going to play the part of Art's barbarian, Mr. Scalpel, I don't think you can afford to worry about such niceties. Neither swords nor palette knives can indulge in the luxury of a conscience. Or are you just a spoiled young dilettante who talks about devotion to Art but runs crying at the first little harshness?"

There was a bright fire in her eyes, a fire like none I'd ever seen before; but like all fires, it was terrible and awesome, powerful and pitiless.

Dear Reader, many before me have written about the first cave-dweller to tame fire; but none, I think, have considered the man who next entered the tribal cave and saw the blaze leaping wildly toward the ceiling. That man had to choose on behalf of the human race: whether to praise the Fire-Tamer's vision or denounce it as madness, whether to put the fire out or gaze at it in wonder. In the end, perhaps he could only run to his fellows and tell what he had seen.

According to the Kerr-Newman model of a rotating black hole, there is a region just outside the event horizon where certain space and time vectors switch properties with each other. This is just mathematics, you understand, merely a quirk of the formulas—physically, nothing changes wildly until you get inside the black hole itself, and then who cares what happens? Double-deluxe chocolate-chip cookies could spontaneously spring into being and it wouldn't matter to the universe outside. Reality may break down inside a black hole, but the effects never percolate back into our familiar space.

Just outside the black hole, however, if it's rotating, if the model is correct, there is a region called the ergosphere where certain vector fields describing the flow of space and time do a flip-flop. When I was trying to understand what this meant, I told myself that places became moments and moments became places.

Think of that. Places became moments. Moments became places.

Years and years ago, I did my master's thesis on black holes. In those days, I could have explained the math to you…but now I've forgotten it all. I look at the book containing my thesis and the only thing I remember is how hard it was to type all those equations. The meaning of the equations has dribbled out of my understanding a grain at a time, and now all I hold is this: just outside a spinning black hole, in a region called the ergosphere, places become moments and moments become places.

Think of that.

Kent State University entered the ergosphere at 12:24 P.M. on Monday, May 4, 1970. That was the moment the Ohio State National Guard opened fire on demonstrators protesting American involvement in Vietnam and Cambodia. Four students were killed; nine others were wounded.

Kent State ceased to be a place and became a moment. Like Hiroshima. Like Chernobyl. Kent State fell off the map and became thirteen seconds of gunfire on a warm spring day. And maybe it kept dropping down the gravity well, from the ergosphere straight into the black hole.

Here is an ugly truth: back in 1970, when I heard the news about the Kent State killings, I felt smug.

I was fifteen years old. I was Canadian. It pleased me in a spiteful way that the U.S. had so blatantly screwed up.

I was fifteen. I was self-righteous. I had never been to a funeral.

The vectors that flip-flop in the ergosphere indicate symmetries in the gravitational field. One vector is timelike; it indicates that the laws of gravity don't change over time. The other vector is space-like; it describes the rotational symmetry of the black hole.

These vectors are called Killing vectors. Really. They're named after a Professor Wilhelm K. J. Killing of the University of Münster. He gave his name to such geometrical objects in 1892, many decades before Kerr and Newman used them in their model of a rotating black hole.

Killing vectors.

May 4, 1990, was a Friday, but all the local newspapers saved their Kent State retrospectives for the weekend editions. I bought three papers that Saturday—the Globe & Mail for its book reviews, the Kitchener-Waterloo Record for local movie listings, and the Toronto Star for Doonesbury.

I didn't realize it was the twentieth anniversary of Kent State until I saw a commemorative article in the first paper I read. That article was written by a Kent State journalism student who happened to be in the right place at the right time to get the greatest news story of his life. The reporter told about his day: the rumors that something bad had happened at the noon rally, his race to get his camera, his sneaking through bushes to reach the parking lot where the killings took place, many details about the aftermath…but strangely, the reporter omitted any information about the victims themselves. He didn't even give their names.

The article in the second paper talked about the effect of the killings on the American psyche. Was it really the turning point in the Vietnam War, the moment when public consciousness crossed some unerasable line? Or was it just another straw on the camel's bending back?

The victims weren't named in this article either. Just four dead students. Four dead in O-hi-o.

Kent State is about 270 kilometers from my living room. I've never been there; it feels like a very distant place.

My wife's parents live more than 450 kilometers away. We visit them several times a year.

It was only in the third paper that I found an actual list of who died. Four students, two women, two men:

Allison Krause

Jeff Miller

Sandy Lee Scheuer

Bill Schroeder

This was the only information given about the victims: just their names. The article in the third paper was about the backroom machinations that made sure no charges were successfully laid against the National Guard.

I sat in my living room, three thick newspapers on the floor around my chair, and I wondered why all three treated the victims as if they were irrelevant to the story. Certainly, the National Guard didn't specifically target those four students; the Guard could easily have killed four different people, or a dozen people, or none. But why should that matter? Randomness shouldn't mean irrelevance.