He ran his fingers along the paper strip, then joined the two ends together to make a circular loop.

  “Here I have a shape which is perfectly familiar to you—the section of a cylinder. I run my finger around the inside, so—and now along the outside. The two surfaces are quite distinct: you can go from one to the other only by moving through the thickness of the strip. Do you agree?”

  “Of course,” said Brayldon, still puzzled. “But what does it prove?”

  “Nothing,” said Grayle. “But now watch—”

  This sun, Shervane thought, was Trilorne’s identical twin. The darkness had now lifted completely, and there was no longer the sensation, which he would not try to understand of walking across an infinite plain.

  He was moving slowly now, for he had no desire to come too suddenly upon that vertiginous precipice. In a little while he could see a distant horizon of low hills, as bare and lifeless as those he had left behind him. This did not disappoint him unduly, for the first glimpse of his own land would be no more attractive than this.

  So he walked on: and when presently an icy hand fastened itself upon his heart, he did not pause as a man of lesser courage would have done. Without flinching, he watched that shockingly familiar landscape rise around him, until he could see the plain from which his journey had started, and the great stairway itself, and at last Brayldon’s anxious, waiting face.

  Again Grayle brought the two ends of the strip together, but now he had given it a half-twist so that the band was kinked. He held it out to Brayldon.

  “Run your finger around it now,” he said quietly.

  Brayldon did not do so: he could see the old man’s meaning.

  “I understand,” he said. “You no longer have two separate surfaces. It now forms a single continuous sheet—a one sided surface—something that at first sight seems utterly impossible.”

  “Yes,” replied Grayle very softly. “I thought you would understand. A one-sided surface. Perhaps you realize now why this symbol of the twisted loop is so common in the ancient religions, though its meaning has been completely lost. Of course, it is no more than a crude and simple analogy—an example in two dimensions of what must really occur in three. But it is as near as our minds can ever get to the truth.”

  There was a long, brooding silence. Then Grayle sighed deeply and turned to Brayldon as if he could still see his face.

  “Why did you come back before Shervane?” he asked, though he knew the answer well enough.

  “We had to do it,” said Brayldon sadly, “but I did not wish to see my work destroyed.”

  Grayle nodded in sympathy.

  “I understand,” he said.

  Shervane ran his eye up the long flight of steps on which no feet would ever tread again. He felt few regrets: he had striven, and no one could have done more. Such victory as was possible had been his.

  Slowly he raised his hand and gave the signal. The Wall swallowed the explosion as it had absorbed all other sounds, but the unhurried grace with which the long tiers of masonry curtsied and fell was something he would remember all his life. For a moment he had a sudden, inexpressibly poignant vision of another stairway, watched by another Shervane, falling in identical ruins on the far side of the Wall.

  But that, he realized, was a foolish thought: for none knew better than he that the Wall possessed no other side.

  Death and the Senator

  Washington had never looked lovelier in the spring; and this was the last spring, thought Senator Steelman bleakly, that he would ever see. Even now, despite all that Dr. Jordan had told him, he could not fully accept the truth. In the past there had always been a way of escape; no defeat had been final. When men had betrayed him, he had discarded them—even ruined them, as a warning to others. But now the betrayal was within himself; already, it seemed, he could feel the labored beating of the heart that would soon be stilled. No point in planning now for the Presidential election of 1976; he might not even live to see the nominations . . .

  It was an end of dreams and ambition, and he could not console himself with the knowledge that for all men these must end someday. For him it was too soon; he thought of Cecil Rhodes, who had always been one of his heroes, crying “So much to do—so little time to do it in!” as he died before his fiftieth birthday. He was already older than Rhodes, and had done far less.

  The car was taking him away from the Capitol; there was symbolism in that, and he tried not to dwell upon it. Now he was abreast of the New Smithsonian—that vast complex of museums he had never had time to visit, though he had watched it spread along the Mall throughout the years he had been in Washington. How much he had missed, he told himself bitterly, in his relentless pursuit of power. The whole universe of art and culture had remained almost closed to him, and that was only part of the price that he had paid. He had become a stranger to his family and to those who were once his friends. Love had been sacrificed on the altar of ambition, and the sacrifice had been in vain. Was there anyone in all the world who would weep at his departure?

  Yes, there was. The feeling of utter desolation relaxed its grip upon his soul. As he reached for the phone, he felt ashamed that he had to call the office to get this number, when his mind was cluttered with memories of so many less important things.

  (There was the White House, almost dazzling in the spring sunshine. For the first time in his life he did not give it a second glance. Already it belonged to another world—a world that would never concern him again.)

  The car circuit had no vision, but he did not need it to sense Irene’s mild surprise—and her still milder pleasure.

  “Hello, Renee—how are you all?”

  “Fine, Dad. When are we going to see you?”

  It was the polite formula his daughter always used on the rare occasions when he called. And invariably, except at Christmas or birthdays, his answer was a vague promise to drop around at some indefinite future date.

  “I was wondering,” he said slowly, almost apologetically, “if I could borrow the children for an afternoon. It’s a long time since I’ve taken them out, and I felt like getting away from the office.”

  “But of course,” Irene answered, her voice warming with pleasure. “They’ll love it. When would you like them?”

  “Tomorrow would be fine. I could call around twelve, and take them to the Zoo or the Smithsonian, or anywhere else they felt like visiting.”

  Now she was really startled, for she knew well enough that he was one of the busiest men in Washington, with a schedule planned weeks in advance. She would be wondering what had happened; he hoped she would not guess the truth. No reason why she should, for not even his secretary knew of the stabbing pains that had driven him to seek this long-overdue medical checkup.

  “That would be wonderful. They were talking about you only yesterday, asking when they’d see you again.”

  His eyes misted, and he was glad that Renee could not see him.

  “I’ll be there at noon,” he said hastily, trying to keep the emotion out of his voice. “My love to you all.” He switched off before she could answer, and relaxed against the upholstery with a sigh of relief. Almost upon impulse, without conscious planning, he had taken the first step in the reshaping of his life. Though his own children were lost to him, a bridge across the generations remained intact. If he did nothing else, he must guard and strengthen it in the months that were left.

  *

  Taking two lively and inquisitive children through the natural-history building was not what the doctor would have ordered, but it was what he wanted to do. Joey and Susan had grown so much since their last meeting, and it required both physical and mental alertness to keep up with them. No sooner had they entered the rotunda than they broke away from him, and scampered toward the enormous elephant dominating the marble hall.

  “What’s that?” cried Joey.

  “It’s an elephant, stupid,” answered Susan with all the crushing superiority of her seven years.

 
“I know it’s an effelant,” retorted Joey. “But what’s its name?”

  Senator Steelman scanned the label, but found no assistance there. This was one occasion when the risky adage “Sometimes wrong, never uncertain” was a safe guide to conduct.

  “He was called—er—Jumbo,” he said hastily. “Just look at those tusks!”

  “Did he ever get toothache?”

  “Oh no.”

  “Then how did he clean his teeth? Ma says that if I don’t clean mine . . .”

  Steelman saw where the logic of this was leading, and thought it best to change the subject.

  “There’s a lot more to see inside. Where do you want to start—birds, snakes, fish, mammals?”

  “Snakes!” clamored Susan. “I wanted to keep one in a box, but Daddy said no. Do you think he’d change his mind if you asked him?”

  “What’s a mammal?” asked Joey, before Steelman could work out an answer to that.

  “Come along,” he said firmly. “I’ll show you.”

  As they moved through the halls and galleries, the children darting from one exhibit to another, he felt at peace with the world. There was nothing like a museum for calming the mind, for putting the problems of everyday life in their true perspective. Here, surrounded by the infinite variety and wonder of Nature, he was reminded of truths he had forgotten. He was only one of a million million creatures that shared this planet Earth. The entire human race, with its hopes and fears, its triumphs and its follies, might be no more than an incident in the history of the world. As he stood before the monstrous bones of Diplodocus (the children for once awed and silent), he felt the winds of Eternity blowing through his soul. He could no longer take so seriously the gnawing of ambition, the belief that he was the man the nation needed. What nation, if it came to that? A mere two centuries ago this summer, the Declaration of Independence had been signed; but this old American had lain in the Utah rocks for a hundred million years . . .

  He was tired when they reached the Hall of Oceanic Life, with its dramatic reminder that Earth still possessed animals greater than any that the past could show. The ninety-foot blue whale plunging into the ocean, and all the other swift hunters of the sea, brought back memories of hours he had once spent on a tiny, glistening deck with a white sail billowing above him. That was another time when he had known contentment, listening to the swish of the water past the prow, and the sighing of the wind through the rigging. He had not sailed for thirty years; this was another of the world’s pleasures he had put aside.

  “I don’t like fish,” complained Susan. “When do we get to the snakes?”

  “Presently,” he said. “But what’s the hurry? There’s plenty of time.”

  The words slipped out before he realized it. He checked his step, while the children ran on ahead. Then he smiled, without bitterness. For in a sense, it was true enough. There was plenty of time. Each day, each hour could be a universe of experience, if one used it properly. In the last weeks of his life, he would begin to live.

  As yet, no one at the office suspected anything. Even his outing with the children had not caused much surprise; he had done such things before, suddenly cancelling his appointments and leaving his staff to pick up the pieces. The pattern of his behavior had not yet changed, but in a few days it would be obvious to all his associates that something had happened. He owed it to them—and to the party—to break the news as soon as possible; there were, however, many personal decisions he had to make first, which he wished to settle in his own mind before he began the vast unwinding of his affairs.

  There was another reason for his hesitancy. During his career, he had seldom lost a fight, and in the cut and thrust of political life he had given quarter to none. Now, facing his ultimate defeat, he dreaded the sympathy and the condolences that his many enemies would hasten to shower upon him. The attitude, he knew, was a foolish one—a remnant of his stubborn pride which was too much a part of his personality to vanish even under the shadow of death.

  He carried his secret from committee room to White House to Capitol, and through all the labyrinths of Washington society, for more than two weeks. It was the finest performance of his career, but there was no one to appreciate it. At the end of that time he had completed his plan for action; it remained only to dispatch a few letters he had written in his own hand, and to call his wife.

  The office located her, not without difficulty, in Rome. She was still beautiful, he thought, as her features swam on the screen; she would have made a fine First Lady, and that would have been some compensation for the lost years. As far as he knew, she had looked forward to the prospect; but had he ever really understood what she wanted?

  “Hello Martin,” she said, “I was expecting to hear from you. I suppose you want me to come back.”

  “Are you willing to?” he asked quietly. The gentleness of his voice obviously surprised her.

  “I’d be a fool to say no, wouldn’t I? But if they don’t elect you, I want to go my own way again. You must agree to that.”

  “They won’t elect me. They won’t even nominate me. You’re the first to know this, Diana. In six months, I shall be dead.”

  The directness was brutal, but it had a purpose. That fraction-of-a-second delay while the radio waves flashed up to the communication satellites and back again to Earth had never seemed so long. For once, he had broken through the beautiful mask. Her eyes widened with disbelief, her hand flew to her lips.

  “You’re joking!”

  “About this? It’s true enough. My heart’s worn out. Dr. Jordan told me, a couple of weeks ago. It’s my own fault, of course, but let’s not go into that.”

  “So that’s why you’ve been taking out the children: I wondered what had happened.”

  He might have guessed that Irene would have talked with her mother. It was a sad reflection on Martin Steelman, if so commonplace a fact as showing an interest in his own grandchildren could cause curiosity.

  “Yes,” he admitted frankly.”I’m afraid I left it a little late. Now I’m trying to make up for lost time. Nothing else seems very important.”

  In silence, they looked into each other’s eyes across the curve of the Earth, and across the empty desert of the dividing years. Then Diana answered, a little unsteadily, “I’ll start packing right away.”

  Now that the news was out, he felt a great sense of relief. Even the sympathy of his enemies was not as hard to accept as he had feared. For overnight, indeed, he had no enemies. Men who had not spoken to him in years, except with invective, sent messages whose sincerity could not be doubted. Ancient quarrels evaporated, or turned out to be founded on misunderstandings. It was a pity that one had to die to learn these things . . .

  He also learned that, for a man of affairs, dying was a full-time job. There were successors to appoint, legal and financial mazes to untangle, committee and state business to wind up. The work off an energetic lifetime could not be terminated suddenly, as one switches off an electric light. It was astonishing how many responsibilities he had acquired, and how difficult it was to divest himself of them. He had never found it easy to delegate power (a fatal flaw, many critics had said, in a man who hoped to be Chief Executive), but now he must do so, before it slipped forever from his hands.

  It was if a great clock was running down, and there was no one to rewind it. As he gave away his books, read and destroyed old letters, closed useless accounts and files, dictated final instructions, and wrote farewell notes, he sometimes felt a sense of complete unreality. There was no pain; he could never have guessed that he did not have years of active life ahead of him. Only a few lines on a cardiogram lay like a roadblock across his future—or like a curse, written in some strange language the doctors alone could read.

  Almost every day now Diana, Irene, or her husband brought the children to see him. In the past he had never felt at ease with Bill, but that, he knew, had been his own fault. You could not expect a son-in-law to replace a son, and it was unfair to blame B
ill because he had not been cast in the image of Martin Steelman, Jr. Bill was a person in his own right; he had looked after Irene, made her happy, and fathered her children. That he lacked ambition was a flaw—if flaw indeed it was—that the Senator could at last forgive.

  He could even think, without pain or bitterness, of his own son, who had traveled this road before him and now lay, one cross among many, in the United Nations cemetery at Capetown. He had never visited Martin’s grave; in the days when he had the time, white men were not popular in what was left of South Africa. Now he could go if he wished, but he was uncertain if it would be fair to harrow Diana with such a mission. His own memories would not trouble him much longer, but she would be left with hers.

  Yet he would like to go, and felt it was his duty. Moreover, it would be a last treat for the children. To them it would be only a holiday in a strange land, without any tinge of sorrow for an uncle they had never known. He had started to make the arrangements when, for the second time within a month, his whole world was turned upside down.

  Even now, a dozen or more visitors would be waiting for him each morning when he arrived at his office. Not as many as in the old days, but still a sizable crowd. He had never imagined, however, that Dr. Harkness would be among them.

  The sight of that thin, gangling figure made him momentarily break his stride. He felt his cheeks flush, his pulse quicken at the memory of ancient battles across committee-room tables, of angry exchanges that had reverberated along the myriad channels of the ether. Then he relaxed; as far as he was concerned, all that was over.

  Harkness rose to his feet, a little awkwardly, as he approached. Senator Steelman knew that initial embarrassment—he had seen it so often in the last few weeks. Everyone he now met was automatically at a disadvantage, always on the alert to avoid the one subject that was taboo.