The Aqueduct

Chapter One: Before Dawn

Decimus Varro woke, as he always did, in the last hour of the dark, and lay for a moment listening to the city.

Antioch never truly slept, but at this hour it came close. He could hear the creak of a cart on the colonnaded street four floors below, the cough of a night porter, the far-off complaint of a donkey. Underneath all of it, faint but constant, ran the sound he listened for: water. It moved beneath the paving stones of the great street in lead pipes and terracotta channels, it fell into the basins of the public fountains, it slid down from the hills of Daphne through five miles of masonry channel and dropped, hissing, into the Nymphaeum at the Forum. That sound was the pulse of the third city of the empire, and Varro had spent eleven years learning to hear when it faltered.

This morning it was faltering.

He rose without lighting a lamp. His rooms above the water office were small and severe: a bed, a table, a chest, a shelf of scrolls and wax tablets, a bronze water-level and a set of surveying rods leaning in the corner like spears. There had once been more here. There had been a woman's comb and a woman's cloak and, for four months, a cradle. He did not look at the corner where the cradle had stood. He had trained himself out of looking at it the way a man trains himself out of favoring an injured leg, which is to say imperfectly, and with a limp that only he could feel.

He dressed, took his logbook and his stylus, and went down into the street.

June in Syria. Even at this hour the air held the day's heat the way a brick holds it, giving it back slowly. The great colonnade of Antioch ran two miles from the Daphne Gate to the Aleppo Gate, four hundred columns on each side, and in the daytime it was a river of humanity: Greeks and Syrians, Jews and Cappadocians, soldiers, sailors up from Seleucia, camel-drivers from the desert, priests of a dozen gods, and, lately, the endless grinding supply-trains of the emperor's Parthian war. Now it was nearly empty. Lamps guttered in the shopfront niches. A cat crossed ahead of him with something limp in its mouth.

He walked east toward the Forum, and the smell of the city came with him: dust and old bread, urine and cooking oil, cut cedar, the resinous smoke of the perfumers, and under it all the wet green breath of the Orontes.

The Nymphaeum stood at the corner of the Forum, a great marble face of niches and dolphins and marine gods, and it was the pride of the water office. On feast days the water came out of nine mouths at once and the noise of it filled the whole square. Varro came around the corner and stopped.

Seven of the nine mouths were running. The two highest had gone silent.

He stood there for a while in the dark, listening. Then he stepped up onto the basin rim, careful of the wet marble, and lowered his hand into the water. The level in the upper basin had dropped a finger's breadth and a little more since yesterday. He took out his stylus and, holding the tablet against his thigh, wrote the figure down.

It was not a catastrophe. It was the sort of thing that could be explained by a hundred harmless causes: a blocked screen at the intake, a settled deposit of lime in a pipe, a farmer at Daphne watering his melons out of turn. In eleven years he had chased down a thousand such discrepancies and nine hundred and ninety of them had been nothing.

But the flow should have been rising, not falling. The snowmelt from the hills was late this year and still feeding the springs. His tables said the flow ought to be at its June maximum, and instead it had been sliding downward for eleven days, a finger here, a finger there, patient as a thief.

A sound behind him. He turned.

"You'll fall in one of these mornings," said Philo, "and I'll have to write the report."

His deputy came across the square with his cloak bundled under one arm, hair standing up on one side of his head, a wax tablet already in hand. Philo was twenty-four, Alexandrian, and had the finest mathematical mind Varro had ever encountered, which he wasted on jokes. He had come to Antioch three years ago with a letter of introduction, a chest of Euclid, and no money at all, and Varro had hired him within an hour of meeting him because the young man had looked at a broken sluice gate and calculated, in his head, in less time than it takes to say it, how much water the city had lost since it broke.

"How did you know I was here?" Varro said.

"You're always here. Two mouths dry?"

"Two."

Philo climbed up beside him and looked at the silent niches with the frank curiosity of a man examining a wound. "Yesterday it was one."

"Yesterday at this hour it was one. By the sixth hour it was two, and it came back in the evening. It hasn't come back this time." Varro handed him the tablet. "Read me the eleven-day column."

Philo read it, and his face changed. He was not a man who took things seriously by choice, and it was always sobering to watch him do it.

"That's not silting," he said.

"No."

"Silting gives you a curve. That's a straight line. Something is taking a fixed amount." He looked up. "Every day. The same amount."

"That is what I think."

A pause. Somewhere behind the Forum a rooster began to argue with the dark.

"How much?" Philo said.

"Call it a tenth of the flow. Perhaps a little more."

Philo whistled. "That's not a farmer with a bucket."

"No. That is a pipe." Varro stepped down off the basin. "Go to Daphne. Take a mule and take Acco if you can find him — he can get into places you can't. Walk the channel from the diversion dam down to the second settling tank and look at every inspection shaft. Look at the ground, too. If someone has cut into the conduit they've had to dig, and you can bury a pipe but you can't bury the dirt you took out of the hole."

"And if I find it?"

"Measure it. Draw it. Don't touch it, and don't tell anyone you found it except me."

Philo's eyebrows went up. "That sounds political."

"Everything in this city is political," Varro said. "Water most of all. Go."

He watched the young man lope off across the Forum, cloak trailing, and then he stood alone in the greying dark with the seven mouths of the Nymphaeum whispering behind him, and he did what he always did when he did not like the shape of a problem. He went to look at the thing itself.

The main conduit entered the city under the southern wall, and there was an inspection shaft in an alley behind a fuller's shop where the smell of stale urine was strong enough to make the eyes run. Varro lifted the stone cover, hooked his lamp to his belt, and went down the iron rungs.

The channel below was a masonry tunnel a little taller than a man, lined with hard pink hydraulic mortar, and it ran with a low unbroken roar. Varro had first come down into a channel like this at the age of nine, holding his father's hand. His father had been a surveyor for the province, a careful, unimportant man who had spent thirty years running levels across Syria and had never been given credit for any of it, and who had scraped and borrowed to send his son to Rome to study with men who built things that were remembered. *Water goes downhill,* his father used to say, *and that is the whole of the art. Everything else is just being honest about how far downhill.*

Varro set his hand flat against the wall and read the tide-mark, the pale line of lime the water leaves at its usual height. The line was there, chalky and clean. The water now ran three fingers below it.

He stood in the roaring dark with his hand on the cold mortar and felt, for the first time, a small cold pressure under his ribs that was not quite fear.

Half a million people lived above his head. They drank from this. They washed in it, they filled their public baths with it, they flushed their latrines and watered their gardens and cooled their wine with it. The cisterns of Antioch held perhaps a dozen days' worth if the flow stopped entirely, and every day of the summer they held less, because every day the city drank more than the cisterns liked.

He climbed back up into the alley, replaced the cover, and went to work.

---

The water office of Antioch occupied three rooms and a yard on the second-best street in the Epiphania quarter. Two rooms were for records. In one of them, the older, there were four hundred years of them: Seleucid surveys on brittle papyrus, Roman ledgers on wooden tablets, and the great chained volumes of the pipe register in which every legal water connection in the city was listed with the diameter of its nozzle, the name of its owner, and the fee it paid.

Varro sat in the second room, the working room, and did what he had been doing for eleven days: he compared numbers.

On the left, the repair ledger, in his own hand and in his predecessor's. Every job done on the water system: date, location, materials, labor, cost. On the right, the treasury receipts issued by the office of the procurator, Tiberius Salvius, who administered the emperor's revenues in Syria and who signed for every coin the water office spent.

They did not agree.

They had never agreed, exactly — no two sets of accounts in the empire agreed exactly — but three years ago the disagreement had changed character. It had stopped being a scatter of small errors and become a pattern. The treasury had paid out, over thirty-eight months, for eleven thousand feet of new lead pipe, for the relining of three long sections of the Daphne conduit, for two hundred and forty days of masons' wages, for lime, for sand, for pozzolana shipped from Italy at ruinous cost.

Varro had walked every foot of the water system with his own boots. He knew where the new pipe was. There was, by his count, something under three thousand feet of it.

He had said nothing. He had told himself he was gathering evidence, but the honest truth was that he was afraid, and he knew what he was afraid of. He was the son of a nobody. He held his post because he was good at it, and for no other reason: he had no senator behind him, no patron, no cousin in the imperial secretariat. Tiberius Salvius was a procurator of the equestrian order, appointed by Caesar, and he had friends in every office from here to Rome.

A clerk put his head around the door. "There's a woman, sir, from the Epiphania fountain. Says her fountain's dry."

"Which one?"

"The one by the little synagogue."

Varro rubbed his eyes. "Tell her I'll come this morning."

"She says she's been telling us for three days."

"Has she." He stood. "Then I'll come now."

The fountain by the little synagogue was one of the hundred and thirty public basins that were the real water supply of Antioch — not the marble show-piece at the Forum but the plain stone troughs where the poor filled their jars. Varro found a crowd of thirty around it, mostly women, with children hanging on them and empty jars at their feet, and a lion-headed spout producing a thread of water no thicker than a finger.

They turned on him as one animal. He had expected it and he stood and let it come: the shouting, the complaints, the hands thrust out, the small furious woman who had walked to the water office three times and been told to wait. He let it run for a full minute, which he had learned was the right amount of time, and then he raised his hand.

"The fault is not here," he said, in Greek, loudly. "It is above the city. I am going up today to find it. Until it is fixed, this basin will run at night, from the second hour after dark. Come then and you will fill."

"And who says so?" said the small furious woman.

"I do. My name is Decimus Varro and I am the engineer of this water."

"And if it doesn't run?"

"Then come to the water office and shout at me," Varro said, "which is more than you'll get from anyone else in this city."

That produced, from somewhere in the crowd, a bark of laughter, and the mood turned by the width of a hair, and he got out with his skin. Walking away, he thought: *by the second hour after dark I will have to take that water from somewhere, and every basin I take it from will produce another crowd.* He had a hundred and thirty basins and one river of water and the river was getting smaller.

His route back took him along the edge of the Epiphania quarter, past a street of small shops with awnings out, and he found that his feet had slowed without asking him.

The shop had a blue-painted door and a sign with a mortar and pestle. Bundles of dried herbs hung in the window, and clay jars of resin sealed with wax, and a rack of little bronze scales. Above it was a single window with a shutter, and behind the shutter was a rented room, and in that room, for the last thirteen months, had lived his wife.

He did not stop. He never stopped. But he looked, and as he looked the blue door opened and a woman came out with a basket on her hip.

Berenice was thirty-four years old. She had grown up in the perfume trade in this quarter, the daughter of a Greek importer of gums and resins, and she had learned pharmacy from a physician who had taken money to teach her because her father had money to give. She was not beautiful in the way the poets meant. She had a wide, strong-boned face and a heavy fall of black hair that she wore pinned up and always escaping, and the calm, appraising, faintly impatient eyes of a woman who has spent her life being told she is wrong by men who are.

She saw him. There was a pause of perhaps two heartbeats.

Then she nodded, once, the way you nod at a neighbor, and turned up the street the other way.

Varro stood in the road. A boy went past with a tray of bread on his head. Somewhere a door slammed.

He had rehearsed a hundred versions of a conversation with her and he had never once said any of them. In each of them he explained. He explained that a canal inspection at Seleucia was three days' ride, that the message had taken a day and a half to reach him, that he had ridden through the night and killed a horse doing it, that when he came through the door the room had already been washed and the little body already wrapped and Berenice had already been sitting for eleven hours in the chair by the wall not moving. In each version he explained, and in each version she looked at him with those calm appraising eyes and said: *Yes. And where were you?*

There was no answer to that. She was right. That was the thing he could not get around, could not survey a route past, could not build over: she was right, and so was he, and both of those things being true at once had killed the marriage as surely as the fever had killed the child.

He went back to the water office.

---

Philo returned from Daphne at the tenth hour of the day, filthy to the thigh, with his tablet held out in front of him like a dish he was afraid of spilling.

"You were right," he said. "There's a tap."

Varro cleared the table with his forearm. "Show me."

Philo drew it as he talked, quick clean lines, the Alexandrian training showing. "Two and a half miles above the city. Where the channel runs along the shoulder of the ridge, below the old orchard terraces — you know the stretch, the covered section with the barrel vault. Sixth inspection shaft down from the dam. Someone has cut through the side wall of the conduit about a foot above the floor, set a lead pipe into the hole, and packed it round with mortar and rag. Then they've run the pipe down through the terraces, in a trench, and turfed it over."

"How big a pipe?"

"I measured the mouth. A little over three inches."

Varro sat back. Three inches, with the head of water in that channel — he did the arithmetic and did not like the answer. "That's your tenth," he said. "That's your straight line."

"That's fifteen percent, actually, at the pressures I estimate," said Philo, who could never leave a number alone. "And the work isn't old. The mortar's still bright. Three weeks, maybe five."

"Where does the pipe go?"

Philo hesitated. This, Varro saw, was the part he had been carrying up the road all afternoon.

"I followed it," he said. "You said not to, but I followed it. It runs down about six hundred paces through the terraces and comes out at a wall. Fine ashlar wall, new. There's a gate with a bronze bull's head on it, and behind the wall there's a garden, and in the garden there's a fish pond about forty feet long, and a bath house with a chimney going, and the sound of a fountain."

"Whose?"

"I asked a man with a goat," Philo said. "He said it belongs to the procurator. Tiberius Salvius."

The room was very quiet. Out in the yard a mule shifted its feet.

"Say that again," Varro said.

"Tiberius Salvius has cut a hole in the emperor's aqueduct," said Philo, "to fill his fish pond."

Varro looked at the drawing for a long moment. Then he took the tablet, closed it, and tied the cord.

"Did you tell the man with the goat who you were?"

"No."

"Good. Don't. Don't tell anyone. Not the clerks, not your landlady, not the girl at the wine shop."

"There is no girl at the wine shop," said Philo. "There is a girl at the bakery, and she can't understand a word I say." He was trying to make it light and it was not working; his hands were unsteady. "Decimus. What are you going to do?"

"I am going to go and see him," Varro said.

"That's insane."

"Probably." Varro stood and reached for his cloak. "But the water in that pipe belongs to a hundred and thirty public fountains, and there is a woman by the little synagogue who has walked to this office three times, and I told her I would find the fault today."

He stopped at the door.

"Write out your measurements fair," he said. "Two copies. Keep one somewhere that isn't here."