1In the days when the river cities were already old, a road ran out of them toward the sunrise. It climbed from the reed lands to the high dry country, and it went on past the salt desert to the mountains where the blue stone is dug. Men called it the road of the blue stone. Kings in the river cities wore that stone on their dead faces, and so the road was never empty.
2On that road walked a trader of Elam named Shutur, with nine donkeys and a clay pot of fire. He had lit the pot at a temple lamp in the river lands, and that lamp had been lit from an older lamp, and that from an older. He did not think about this. A trader needs fire at night, and it is easier to carry it than to make it.
3In the eleventh year of his trading a fever took him on the high plain, far from any wall. He lay down beside the road. The people who found him were herders, a clan of the grass, who lived in felt houses and counted their wealth in cattle. They gave him milk and a place by the fire, and he lived nine days.
4A girl of that clan named Suri sat with him, for she was twelve and her work was light. He could not speak to her, so he showed her things. He showed her how the pot was packed, with ash below and ash above, so that a coal could sleep three days. And he showed her a cord with knots in it, and by pointing at his donkeys and at the knots he made her understand: one knot, one beast. The cord remembered what the man might forget.
5On the ninth day he died. The clan kept his donkeys, as was fair, and Suri kept the pot and the cord. Her mother laughed at the cord. But Suri knotted a new one for her father's herd, one knot for each cow and a double knot for each bull, and she cut a small mark for the notch in the ear, for every clan of the grass notched its cattle its own way. Her clan cut the left ear twice.
6Now hear how the people of the grass lived, for it matters to all that follows.
7They had no walls and no writing. They had no king, only chiefs. What held one clan from the throat of another was the oath. Two chiefs would stand at a fire with water poured between them, and each would say what he would do and what he would not, and call on the fire to see it. After that a man could sleep. A herd could graze in a far valley with only boys to watch it. All of it stood on spoken words, and on nothing else.
8In Suri's fourteenth summer the rains failed. The grass came up thin and yellow, and the clans drew in toward the one river that still ran. Her clan came to it from the south. From the north came a clan under a chief named Kerena, a big smiling man with gold on his arms, who had more young men than he had grass to feed them.
9The two chiefs met at the river. Suri's chief was an old man named Aurva, slow and careful. They made a fire on the bank and poured the water, and they swore. The south bank to Aurva and the north bank to Kerena, until the rains came. No man to cross with a weapon. No beast to be taken. Kerena swore it in a loud glad voice, with his hand held out over the flame.
10Suri's brother Taxma was sixteen, and he was put to watch the herd on the south bank with two other boys. "Why only three?" Suri asked her father.
11"Because there is an oath," her father said. "We need the men for cutting reeds. That is what an oath is for."
12On the fourth night after the oath, Kerena's young men crossed the river in the dark.
13Suri woke to the dogs. Then she heard the cattle, and the sound of many hooves going the wrong way, and men shouting in the camp. She ran toward the bank with the others. The herd was gone. The reeds were trampled flat down to the water. Two of the boys were found alive in the morning, one with a broken arm. Her brother Taxma was found at the ford, and he would not wake again.
14She did not weep then. She stood at the ford and looked at the far bank, and at the grey mud all cut with hooves, and she thought: he swore. He held his hand over the fire and he smiled.
15Old Aurva gathered the men. They were forty, and Kerena had a hundred and more. "We cannot take them back by the spear," he said. "We will go to the clans of the east valley. Their chief Zairi is the elder of all the river clans. He will call the chiefs together, and an oath-breaker will be made to pay. That is the custom."
16But a man came into the camp at noon, a wandering smith who mended bronze for all the clans. He had come down from the east valley that morning.
17"You should know what is being said," the smith told them. "A rider of Kerena's came to Zairi's camp before sunrise. He said that Aurva's boys crossed the river three nights ago and drove off twenty cows from the north bank. He said that Kerena only took back what was his, and that one of your boys drew a knife and was struck down for it. Zairi's people believe it. They are saying your clan broke the oath."
18No one spoke for a while. Then Suri's father said, "He sent the rider before the raid was even finished."
19"Then he is a clever man," said the smith.
20Listen. The stolen cattle were a great loss, and the dead boy a greater. But the old chief, hearing the smith, went white for a different reason. He saw what the rider had done. If the east valley believed it, then no chief would sit in judgment. No one would trade with Aurva's clan, or send a daughter, or take one. They would be the oath-breakers.
21"I will go to Zairi and swear it is false," said Aurva.
22"He has already heard a man swear," said the smith. "Now he will hear a second. What makes your oath heavier than the first one? You are the one with the dead herd-boy and the reason to lie."
23That was the thing Kerena had understood, and it was a new thing on the grass. Where every word is believed, one man who will say anything is stronger than a hundred spears.
24Suri had been standing at the edge of the men with the cord in her hands. She had been turning it over and over since the ford, because it was all she had left of the herd. She said, "The cattle cannot swear."
25Her father told her to be quiet. But the old chief looked at her and said, "Say it, child."
26"Kerena's rider says he took back his own cows. Our cows are cut twice in the left ear. His are cut once in the right. Every clan on the river knows the cuts. If Zairi comes and looks at the herd on the north bank, he will see three hundred left ears cut twice. He does not have to believe us. He only has to look."
27"Kerena will hide them," said her father. "Or cut the ears again."
28"Then someone must bring Zairi before he can," said Suri. "And I have this." She held up the cord. "Three hundred and eleven knots. Eleven double knots for the bulls. The red thread is for the cow with the white face. I made it in the spring, before the oath, before any of this. The smith saw me make it. He laughed at me."
29"I did," said the smith slowly. "I remember the red thread."
30It was a day and a half on foot to the east valley, and there were no horses left; the raiders had taken those too. So it was the girl who went, with the smith, for he was known in every camp and no one struck a smith. She took the cord and she took the trader's pot with a live coal in it, for the nights were cold on the high ground.
31They walked through the day's heat and into the dark. On the first night they saw riders against the stars, going east along the ridge, and they lay in a dry stream bed with the pot covered until the hooves were gone. "Kerena's," the smith whispered. "He is sending more words ahead of us." Suri lay with her face in the gravel and thought of her brother, who had been teaching her to whistle through a blade of grass.
32They came to Zairi's camp at the second noon. The dogs were set on them. Already the story was in every mouth: the south clan, the oath-breakers. The smith shouted his own name until someone knew him, and they were brought before the elder.
33Zairi was a thin old man with a cough. He sat outside his house on a hide. Beside him stood two of Kerena's riders, fresh and fed, with gold on their arms like their chief. One of them smiled when he saw the girl, the same glad smile.
34"I have heard the matter," said Zairi. "I have heard it sworn by the fire. What have you brought me, child, that is stronger than a man's oath?"
35"Nothing stronger," said Suri. "I have brought something different." And she laid the cord on the hide in front of him.
36She told him what it was. She showed him the knots, and the double knots, and the red thread. The riders laughed out loud.
37"It is only a string," Suri said. Her voice shook and she made it stop. "It cannot swear. It cannot be frightened and it cannot be paid. So do not believe it. Do not believe me. Come to the north bank and count the left ears. If there are not three hundred and eleven cut twice, with eleven bulls, and one with a white face, then we are liars and you may do with us what is done with liars. But come today. Tomorrow the ears will be cut again."
38Zairi was quiet a long time. He looked at the riders. The one who had smiled was not smiling now.
39"Elder," said that rider, "will you ride a day in the sun to count ears, on the word of a girl? You have our chief's oath. Is his oath not enough for you?"
40And the old man said a thing that was remembered on the river for many lifetimes. He said, "Yesterday it was enough. Then you asked me that question."
41He called for his horse. He took twenty men, and he took Suri up behind his own grandson, and he made Kerena's two riders go in the middle where they could not gallop ahead. They rode through the afternoon and the night.
42They came down to the north bank at dawn. Kerena's men had been at work, but three hundred beasts are slow to cut, and they had begun with the far end of the herd. Zairi rode in among the cattle himself, coughing, with the cord in his hands, and counted aloud. Some had bleeding ears, new cut. Most did not. The white-faced cow stood by the water with her calf.
43Kerena came out smiling, with his arms wide. He began to speak, warmly and well. He was halfway through his first sentence when Zairi turned his horse away from him. The old man did not answer or argue. He turned his horse, and his twenty men turned theirs, and that turning was the judgment.
44By the next moon every clan on the river knew. No one fought Kerena; no one needed to. No one would swear with him. No one would graze beside him or sell him bronze or take his sons for their daughters. He had a hundred spears and gold on his arms, and within two winters he was a man shouting in an empty camp, for there was nothing left in his mouth that anyone could use.
45The cattle came back across the ford. Taxma did not. Suri's mother never laughed at the cord again; she asked to be taught it.
46But the river clans were changed, and not all for the better. Before Kerena, a man held his hand over the fire and was believed. After him, chiefs looked sideways at each other while they swore. One false oath had cost a boy his life and a clan its herd, and it had also cost every clan on the river something that had no name, something they had all been rich in without knowing.
47Suri saw this, and it troubled her more than she could say. In her old age she kept the fire for her clan, in the trader's pot and then in a hearth of stones that was never let die. Children asked her why the fire was to be honoured. She did not say that it was a god. She said, "It is what we swear by. It shows what is there. Put a thing near the fire and you see it as it is. That is why a liar does not like the light."
48She taught the knots to her daughters. She taught them the other thing as well, the harder one: that when two men swear against each other, you may get on your horse and go and look.
49Her clan moved east with the years, toward the country of the two rivers and the high snow. They carried the fire with them and did not let it go out. And many lifetimes after Suri, among the people who came from her people, in a house called Spitama, a boy was born who would ask why men lie, and would not stop asking until he had an answer.
50Now hear of him.