He did not think They had succeeded. During the next seven years, as far as he knew, he escaped detection of the Ethicals. If the Renegade knew where he was, he did not let Burton know. Burton doubted that anyone did; he himself could not ascertain in what part of the Riverplanet he was, how far or how near the Tower headquarters. But he was going, going, going, always on the move. And one day he knew that he must have broken a record of some sort. Death had become second nature to him.

If his count was correct, he had made 777 trips on The suicide Express.

28

Sometimes Burton thought of himself as a planetary grasshopper, launching himself out into the darkness of death, landing, nibbling a little at the grass, with one eye cocked for the shadow that betrayed the downswoop of the shrike — the Ethicals. In this vast meadow of humanity, he had sampled many blades, tasted briefly, and then had gone on.

Other times he thought of himself as a net scooping up specimens here and there in the huge sea of mankind. He got a few big fish and many sardines, although there was as much, if not more, to be learned from the small fish as from the large ones.

He did not like the metaphor of the net, however, because it reminded him that there was a much larger net out for him.

Whatever metaphors or similes he used, he was a man who got around a lot, to use a twentieth-century Americanism. So much so that he several times came across the legend of Burton the Gypsy, or, in one English-speaking area, Richard the Rover, and, in another, the Loping Lazarus. This worried him somewhat, since the Ethicals might get a clue to his method of evasion and be able to take measures to trap him. Or They might even guess at his basic goal and set up guards near the headwaters.

At the end of seven years, through much observation of they daystars and through many conversations, he had formed a picture of the course of The River…

It was not an amphisbaena, a snake with two heads, headwaters at the north pole and mouth at the south pole. It was a Midgard Serpent, with the tail at the north pole, the body coiled around and around the planet and the tail in the serpent’s mouth. The River’s source stemmed from the north polar sea, " zigzagged back and forth across one hemisphere, circled the south pole and then zigzagged across the face of the other hemisphere, back and forth, ever working upward until the mouth opened into the hypothetical polar sea.

Nor was the large body of water so hypothetical. If the story of the Titanthrop, the subhuman who claimed to have seen the Misty Tower, was true, the Tower rose out of the fog-shrouded sea. Burton had heard the tale only at second-hand. But he had seen the Titanthrops near the beginning of The River on his fast "jump," and it seemed reasonable that one might actually have crossed the mountains and gotten close enough to get a glimpse of the polar sea. Where one man had gone, another could follow.

And how did The River flow uphill? Its rate of speed seemed to remain constant even where it should have slowed or refused to go further. From this he postulated localized gravitational fields that urged the mighty stream onward until it had regained an area where natural gravity would take over. Somewhere, perhaps buried under The River itself, were devices that did this work. Their fields must be very restricted, since the pull of the earth did not vary on human beings in these areas to any detectable degree.

There were too many questions. He must go on until he got to the place or to the beings Who could answer them. And seven years after his first death, he reached the desired area.

It was on his 777th "jump." He was convinced seven was a lucky number for him. Burton, despite the scoffings of his twentieth-century friends, believed steadfastly in most of the superstitions he had nourished on Earth. He often laughed at the superstitions of others, but he knew that some numbers held good fortune for him, that silver placed on his eyes would rejuvenate his body when it was tired and would help his second sight, the perception that warned him ahead of time of evil situations. True, there seemed to be no silver on this mineral poor world, but if there were, he could use it to advantage.

All that first day, he stayed at the edge of The River. He paid little attention to those who tried to talk to him, giving them a brief smile. Unlike people in most of the areas he had seen, these were not hostile. The sun moved along the eastern peaks, seemingly just clearing their tops. The flaming ball slid across the valley, lower than he had ever seen it before, except when he had landed among the grotesquely nosed Titanthrops. The sun flooded the valley for a while with light and warmth, and then began its circling just above the western mountains. The valley became shadowed, and the air became colder than it had been any other place, except, of course, on that fast jump. The sun continued to circle until it was again at the point where Burton bad first seen it on opening his eyes.

Weary from his twenty-four hour vigil, but happy, he turned to look for living quarters. He knew now that he was in the arctic area, but he was not at a point just below the headwaters. This time, he was at the other end, the mouth.

As he turned, he heard a voice, familiar but unidentifiable. (He had heard so many.)

"Dull soul aspire;

Thou art not the Earth.

Mount higher!

Heaven gave the spark;

to return the fire."

"John Collop! "Abdul ibn Harun! And they say there are no miracles! What has happened to you since last I saw you?"

"I died the same night you did," Burton said. "And several times since. There are many evil men in this world."

"Tis only natural. There were many on Earth. Yet I dare say their number has been cut down, for the Church has been able to do much good work, praise God. Especially in this area. But come with me, friend. I’ll introduce you to my hutmate. A lovely woman, faithful in a world that still seems to put little value on marital fidelity or, indeed, in virtue of any sort. She was born in the twentieth century A.D. and taught English most of her life. Verily, I sometimes think she loves me not so much for myself as for what. I can teach her of the speech, of my time."

He gave a curious nervous laugh, by which Burton knew he was joking. They crossed the plains toward the foothills where fires were burning on small stone platforms before each hat. Most of the men and women had fastened towels around them to form parkas, which shielded them from the chill of the shadows.

"A gloomy and shivering place," Burton said. "Why would anybody want to live here?"

"Most of these people be Finns or Swedes of the late twentieth century. They are used to the midnight sun. However, you should be happy you’re here. I remember your burning curiosity about the Polar Regions and your speculations anent. There have been others like you who have gone on down The River to seek their Ultima Thule, or if you will pardon me for so terming it, the fool’s gold at the end of the rainbow. But all have either failed to return or have come back, daunted by the forbidding obstacles."

"Which are what?" Burton said, grabbing Collop’s arm.

"Friend, you’re hurting me. Item, the grailstones cease, so that there is nothing wherewith they may recharge their grails with food. Item, the plains of the valley suddenly terminate, and The River pursues its course between the mountains themselves, through a chasm of icy shadows. Item, what lies beyond, I do not know, for no man has come back to tell me. But I fear they’ve met the end of all who commit the sin of hubris."

"How far away is this plunge of no return?"

"As the River winds, about 25,000 miles. You may get there with diligent sailing in a year or more. The Almighty Father alone knows how far you must then go before you arrive at the very end of The River. Belike you’d starve before then, because you’d have to take provisions on your boat after leaving the final grailstone!’