“I told you.” Judah spoke very quietly.

Can’t we get out of here? Cutter thought. I don’t want to talk in front of them. He looked up, breathing fast, saw Pomeroy and Elsie holding each other.

“In my letter, Cutter. You remember?” Judah held his gaze. “I told you I was going because of this.”

“We’re near the outskirts of Tesh lands,” Cutter said. “This don’t mean the militia are onto the Iron Council.”

“They’ve a base by the coast, from where they send these squads out. This… work… This is only half of what they do. They’re going north. They’re looking for the Council.”

Beyond the dead was open country. They knew that the militia that had done this to these runaways might be close, and they moved carefully. Cutter saw those patient dead when he closed his eyes. Drogon took them on a path through the sagebrush. On the hills ahead were scraps of farmland, of a half-wild, scrubby kind, from where the smoke came.

It was a day to the depredation. The air was clogged with smouldering. They entered the first little field with their guns drawn.

Through ridges of turned-over earth into what had been a copse of olives. They trod over the spread claws of roots where the little trees had been torn down. Drying olives scattered like animal pellets. There were craters, where stumps were made carbon sculptures. There were bodies cooked down to skeletons.

There had been huts, and they were burnt. On a plain of scrub and drying creeks were mounds of black rubbish that smoked like slag. A rank, meat and sweet smell. Cutter hacked through dried summer boscage.

For seconds he could not make sense of what he saw. The mounds were heaped-up carcasses, a charnel mass-blacked remnants of snouted ungulates, tusked, big and heavy as buffalo. They were encased in ash and crisped leaves. Roots spread out in their pebbled flesh.

“Vinhogs,” said Judah. “We’re in Galaggi. We’ve come so far.” The wind moved and hilltop dust and the burnings of olives, vines and vineleaves hurt their eyes. The dead animals rustled.

Pomeroy found a trench, where scores of men and women rotted. The decay of days had not yet disguised their crosshatched tattoos. Their pumice-colour skins were death-besmirched, stone jewels piercing them.

They were the wineherds. The clans, the Houses, nomads of this hot northern steppe, custodians of the vinhog coveys. They tracked them, protected them and, at harvest time, leapt in dangerous brilliant husbandry between the horns of the aggressive herbivores to prune the fruit that plumped on their flanks.

Cutter swallowed. They all swallowed, staring at the dead ragged with gunfire. Judah said, “Maybe this is House Predicus. Maybe it’s Charium or Gneura.” The vinhogs, the animal-hosts and their harvest, mouldered and burned away.

All day they walked swells of ruined land, through olive groves ground to nothing, and despoiled crop-herds, and great numbers of scorched cadavers from the winemaker tribes. A corral of the huge meat-birds gone to maggots. The soft spit of embers and the knock of dead wood surrounded them. On some corpses the specifics of murder were still clear. A woman, her skirt rucked up and stiff red; a big wineherd man, his belly flyblown, stabbed in both eyes. Rot made Cutter gag.

They found one vinhog alive, fallen in a stone basin. It shook with hunger and infection. It limped in circles and tried to paw the ground. Its skin was ridged with rootwork and a leaf-pelt from its symbiotic vines. Its lichen-grapes were wizened. Cutter shot it in pity.

“This is why the cactacae fought, down south,” said Pomeroy after a long silent time. “This is what they heard about. They saw the militia, thought this was what they’d get too.”

“Why this? Why this?” said Elsie. She struggled. “Galaggi ain’t Tesh land, it’s wild. These ain’t Tesh tribes.”

“No, but it’s Tesh they’re hurting,” Judah said. “Galaggi wine and oil goes through it. They aren’t strong enough yet to hit the city, but do this and you hit Tesh in the coffers.”

They were way beyond their mapped world. Tesh was there, two or three hundred miles south and west on the coastal plain. Cutter thought of it, though he did not know what it was he should picture. How should he think it? Tesh, City of the Crawling Liquid. Its moats and glass cats, and the Catoblepas Plain and merchant trawlers and tramp diplomats and the Crying Prince.

Thousands of sea miles from Iron Bay to the remote coast, to the foothold that New Crobuzon had established north of Tesh. The militia had to go past Shankell, past seas thick with piasa and pirates, through the Firewater Straits where the Witchocracy backed their Tesh neighbours. There were no land-routes across Rohagi’s wild interiors, no shortcuts. It was a desperately hard war to wage. New Crobuzon had to send ships across months of hostile waters. Cutter was awed at the brute vigour.

That night they ate unripe fruit they found unspoiled on a dead vinhog and made forlorn jokes about what a good vintage it was. Their second day on the vintners’ land they found wreckage of the marauders. The New Crobuzon militia had not had it all their way. It was the remains of a nashorn, a rhino ironclad and Remade into a veldt tank. Two storeys high, a raised arse-end gunnery, a piston-strengthened neck. Its horn was corkscrewed, a huge drillbit. The nashorn was burst and savaged with peasant weapons. Its gears and innards lay about it.

There were six militia dead. Cutter stared at the familiar uniforms in this unlikely place. The officers were killed with blades. There were wineherds’ sickles on the ground.

The land was full of scavengers. Dead-eating fox-things dug at the earth. That night Drogon woke the travellers with a shot. “Ghul,” he whispered to each in turn. They did not believe him, but in the morning its corpse was there: grave-pale and simian, its toothy mouth wide, blood drying on its eyeless forehead.

There was the start of a cooling as they went north, but only the very start. In the heat, among the ghuls and the dead and the dizzying smell of rotting fruit and the smoke, in a land become a torn-up memory of itself, Cutter felt as if he were walking in the outskirts of some hell.

In days through rugged transverse rises, a haze of forested hills became just visible to the north, and Judah was elated. “We’ve to go through that,” he said. “It’s the end of the veldt; it’s the far edge of Galaggi.”

Behind them the earth was broken by the tracks of militia. They had passed out of that crushed zone of husbandry and feral wine, those few score of miles once worth something. This was a wetter reach of hills all summered, copper and slick. It rained warm rain-virga that did not reach the ground.

They were in places only antique sages and adventurers had been. They had heard about these strange reaches-patches of ice in deep summer, the hives of dog-sized termites, clouds that fossilised into granite. On a Dustday, new smoke and a smell reached them. They climbed slopes of scree and breccia to see the scrubland all the miles to the forest, and something burning before them. One by one they let out sounds.

A few miles off. A chelona. Its titan legs were splayed, its plastron flattened to the ground. Its sides rose vastly, and from halfway up were gnarls of carapace-matter coaxed over generations into overhangs and towers, the walls of a keratin village. The great tortoise was more than a hundred yards long, and over the centuries of its life it had accreted on its back a many-layered jag township. Brittle outgrowths of its scute had been grown and carved into blocks, ziggurats and spires, their planes and lines imperfect, cut with windows, belfries connected by rope bridges, coursed with horny streets and tunnels; everything made, paved and walled in the mottlesome tortoiseshell. The chelona was dead and on fire.