In Trinity Hall, in particular, the sudden failure of all lights would have brought both parties to a sudden halt. But the lights stayed on. So 61 pensioners and 139 boys and girls between thirteen and nineteen died in Trinity Hall. Exacty two hundred. And that grisly piece of the disaster more than anything else, Miranda told me, was the thing which was going to make my name stink forever. I didn't attempt to interrupt as she told me what she knew, which was less than I'd have expected. The giants didn't really know everything; their remarkable knowledge which had so impressed me on severai occasions was merely a small collection of isolated bits of exact information. Miranda, who knew so much about me, hadn't known of the existence of Dina. Perhaps, in the world in which the giants played no part, Dina became worse, had to go into a home, and was not mentioned in any accounts that survived. Miranda did not, after all, have to do much explaining to show me how I could become the villain of the Shuteley fire. As she spoke, I oouid see this for myself. And I felt cold horror at the partial justice of it. I wasn't really a villain. I had done nothing stupid, immoral or illegal. And yet . . . FLAG was to all intents and purposes the only insurance company in Shuteley. Practically all pressure exerted on traders, farmers, firms, factories and ordinary householders to make fire less likely was exerted by FLAG -- by me. I didn't personally inspect anything, of course. But I was responsible. If there was blame, it was laid at my door. And there was going to be blame. After such a catastrophe, millions of people all over the world were going to feel that such a thing couldn't happen unless someone had been criminally irresponsible. There were fire prevention officers, too, but not one based in Shuteley. Anyway, Shuteley didn't have a bad fire record. Advice on fire prevention and official pressure for better standards usually followed incidents which showed the need for them. We were the people most responsible for fire prevention. And we were slack . . . FLAG head office was pleased with Shuteley. The directors liked having a town in their pocket, insurance-wise. As local manager, I was expected to carry on the good work. Shuteley made more money for the firm than any other town four times its size, simply because of the volume of business. And the claims record was highly satisfactory. The office ran smoothly. But after all, the directors liked Shuteley first and foremost became it was the one place where the company was supreme. Shuteley made them feel good. It was unique. There was no actual directive, but I was well aware that I must not lose business, must not allow any other insurance company a toehold. This meant that I wasn't supposed to be too hard to please. It would never do if we wouldn't insure a property and some other company would; if we insisted on certain fire safeguards and the other company waived them; if we set a higher premium than the other company. So, while our methods in Shuteley were not exactly bent, they had always been yielding. No doubt some of the town's smarter business men knew our position and cunningly took advantage of it. We wanted to insure them, and prestige mattered even more than profit. We could easily be maneuvered into giving a better deal than anyone else. We could also be persuaded to be satisfied with lower standards of safety than anyone else. No, I hadn't been careless, I hadn't been crooked. I had merely been more easily satisfied than any insurance manager anywhere else would have been, with full backing from my firm. But my firm's backing was going to fade away after this, after the staggering claims that would be made. FLAG would have to pay, in effect, the cost of the town, plus the insured value of the lives lost. Although the bill wouldn't kill the firm, it would make it very sick indeed. And instead of being the blue-eyed boy who kept a whole town in the company's pocket, I'd be the crass idiot whose incompetent methods were partly or even wholly responsible for the biggest pay-out ever made by any single insurance company in the world. Also the firm's backing would fade away the moment there was a hint of public concern about the branch's methods. Naturally the firm had known what I was doing, and approved. But that was before the Great Fire of Shuteley. Oh, I could see it all. People like to have someone to blame. And I was just sufficiently involved to be a perfect choice. "The most unfair bit," Miranda said quietly, "is the way Trinity Hall will be blamed on you. A fire officer called Christie inspected it a year ago and reported . . . " I groaned. I hadn't exactly forgotten the incident, I had merely failed to fit it in place. I knew what was coming. "You saw Christie and showed him your own inspector's report on Trinity Hall. This said that although the building wasn't up to the highest fire-prevention standards, and had a big proportion of wood in the structure, and old wood at that, although the situation left a great deal to be desired, all fire-safety conditions were fully met -- " "That's enough," I said. It was more than that: it was too much. I wanted to hear about other things, no longer that. "What happened to you?" I asked. "Greg hit hard," she said, "but not hard enough. I'm small, yet I'm pretty tough. I came to in the river, choking, and let it carry me almost to the blockage. Then I swam ashore. I had a suit hidden in some bushes as a safeguard -- it wasn't entirely a surprise to me, what Greg did." "What I can't understand," I began, and stopped. I'd been going to say I couldn't understand why Greg was allowed to sabotage everything that the others were trying to do, whatever that was, why Miranda and the rest of the giants had ever thought for a moment it was worth going ahead with their scheme while Greg was along with them, wrecking every move they made, and in the end trying to kill Miranda and failing only because in his vicious anger he preferred to lash out rather than make quite sure of her. But that was only one of the things I couldn't understand. The others rose up and silenced me, tongue-tying me because I couldn't make up my mind which to press first. Miranda, not surprisingly, was no longer immaculate. The two minute pink garments she wore were merely utilitarian, totally dissimilar from the subtle, carefully designed bikini she had worn that afternoon. It was probable that she and the giants had worn the briefs under their suits simply to avoid startling too much the Shuteley people who were to see them. She was scratched and bruised, apart from the huge discoloration where Greg had hit her. And seeing her as she was then reminded me of the impossible glossiness of all the giants. "You do come from the future," I said. "What you call the future," she agreed. "What we know is the present." "That's a play on words." "No. Time doesn't happen all at once. The moving finger writes, and having writ, moves on . . . The date is 2097." " Your date." "No. The date. At this moment, it's April 17, 2097 -- a Wednesday, if you care to check. What comes after April 17, 2097, is the future, completely inaccessible. Before 2097 is the partly accessible past." Her certainty irritated me. "This is what makes all you people cruel, inhuman -- the delusion that your own period is the only one that matters." She was as certain as the torturers of the Inquisition. "It's April 17, 2097." "Then I was born to no real existence? I live out my life in the shadows, dead from the moment I was born?" That made her pause for a moment. "The metaphysical problems," she said at last, "are far beyond me. Perhaps you lived out your life in the second half of the twentieth century . . . perhaps you're restored to play it out again at the end of the twenty-first. I can't tell you the truth from your angle. All I know is that the pointer of time stands at 2097 . . . " When I tried to argue, she went on: "Val, just think. I was born in 2067, and I'm here. Time must have reached . . . " So she was thirty. It was surprising, in a way disappointing. She could have been eighteen or eighty, from what I had known, guessed and imagined. Thirty seemed an indeterminate age for Miranda. It seemed an anticlimax. She went on trying to convince me that time had always reached a definite point, just as a clock had to register something, even if it had stopped. The date, the vital date, the only date that had any life or meaning, was April 17, 2097. Anything before that was the past, anything in front of it was the future. Presently she realized she was wasting her time trying to convince me, and abandoned the attempt. "It doesn't matter," she sighed, sitting down and leaning back against the stasis machine. "You want to know, but you don't want to know. You think you want the truth. All you want, of course, is what you want to hear." "I do want the truth," I retorted. "What is it? You're a history class? At a college?" Her eyes widened. "That's near enough true," she admitted. "I'm the teacher. The rest are pupils. But we're more than just a class. There are changes to be made." "Changes? You're committing suicide, then? Change the past -- your past, if you insist -- and you change everything." "No," she said patiently. "Time can't be changed, though bits of it can. Think of time as a river. It's an old idea, the river of time. But the analogy can be taken a good deal farther. Time is a river. And it's April 17, 2097 -- remember that, assume that, as a hypothesis, even if you're not convinced. Suppose we of 2097 interfere in the past, what happens?" "You cease to exist," I said. "You wink out as if you never were." "No," she said. "Remember the past is a river. Block a river, and what happens? Except in one case in a million, just what happened here. The river flows to the sea. Block it, and it takes another course. It still flows to the sea -- can you even imagine anything else? And except in the most unusual circumstances, the contour of the land forces the river to return to its original course rather quickly, and flow on as if it had never left it. Just think -- the very fact that a river exists means that gravity is forcing all the surplus water in the area to collect and flow in a certain direction. Stop the flow, and the water makes a detour, and then returns to the original direction, the original bed." What she said made sense, but only in a limited way. Arguing by analogy proved nothing. She was saying, in effect, that because a river would act in a certain way, time must act in the same way. I said so. She agreed. "It doesn't always happen. A river flows one side of a hill. Divert it even a few yards at a certain point, and it must flow the other side of the hill. And then it's possible that it never gets back to the original course. Well, that can happen in time, too, but even more rarely than it does with a river. Make minor changes in the past, and your own time is certainly affected . . . but not in a catastrophic way. The river makes a detour, and returns to its original course." She paused and then said quietly: "I ought to know, because I've done it more than once." "You've done it? Changed the past?" She stood up and began to walk about. The flames were dying, I saw, for the firelight flickering on her skin, making it yellow and orange and red but mainly a deep bronze, was far less bright than it had been when Jota and I fought. "About twenty-five years ago it was discovered that it was possible to alter the past, for a purpose, without making vast, indiscriminate chaos of time. At this moment, all the force and life of time is in Wednesday, April 17, 2097. Any time diversion made anywhere has its effect, perhaps a vast effect on 2097, but in the changed world I still exist, I'm still a teacher, I still do the same things at the same time. "The paradoxes of time travel have always fascinated some people, but I'd never been one of them. I had assumed, as most people did, that if you somehow managed to change even the tiniest event in the past, the consequences which must result would multiply, square and cube themselves with every passing millisecond, producing even in a few years a totally different world. "If a girl were delayed ten seconds and consequently never met the man she would have married, never had the children, grandchildren, great-grandchildren she would have had, naturally the future must be quite different. Yet far tinier changes must, I had believed and still believed, be just as significant." "What sort of changes have you made?" I demanded. "And how do you know you've made them?" She smiled and sat down again. But she was very restless. Something was bothering her, something that to her was far more important than the Great Fire of Shuteley -- which, after all, was only history. "Anyone who moves in time," she said, "remembers everything. You were in a loop, so you know what happens. You experience and remember the entire loop -- the previous track, what happened, the return, the change in events, the consequence." Jota and I had entered the camp, fought, Jota had been killed and I had killed. Then we'd been pushed back a few minutes and lived through a different version of the incident. And we remembered everything. Miranda went on: "What have we changed? Sorry, Val, I can't tell you. It's better not -- they're all in your future. This is the farthest-back point where a change has been sanctioned -- " "So it's sanctioned, is it?" I demanded. "Your parliament or senate or whatever you've got calmly decides to monkey with -- " "Wait, please." She laid her hand on my arm. "Cool down. You know nearly enough now for me to tell you plainly and simply why we're here, what we intended to do, and how the operation is going." She was, however, in no hurry to start. And now that it had come to the point, I felt no urge to hurry her. We all like a safe, ordered world. Me more than most. The idea of people watching you, interfering with you, manipulating you makes the flesh creep. And yet, in this case, this very special case, if the giants had come to do the obvious thing and did it, if even now they could be persuaded to do it, I for one would have been delighted they came. Though afterwards, I wouldn't want any such interference again.