Swaying, dipping bridges of wood and rope were draped between many of the upper floors, linking rooms and buildings on opposite sides of streets. In many of the yards and on the tops of many buildings, low walls enclosed flat desert-gardens, with tiny patches of scrubby grass, a few low cactuses and undulating sand.
Little flocks of captive birds that had never found the shattered vents to the outside city swept low over the houses and called out in hunger. With a lurch of adrenalin and nostalgic shock, Yagharek recognized a bird-call from the Cymek. There were dune-eagles, he realized, perching on one or two roofs.
Rising around them on all sides, the dome refracted New Crobuzon like a dirty glass sky, rendering the surrounding houses a confusion of darkness and deflected light. The whole diorama below him thronged with cactus people. Yagharek scanned slowly, but he could not see another sapient race.
The simple bridges swung as cactacae passed over them in all directions. In the sand-gardens, Yagharek saw cactacae with big rakes and wooden paddles carefully sculpting the sastrugi that mimicked the rippling dunes made by the wind. Here in this tightly closed space, bounded on every side, there were no gusts to carve patterns, and the desert landscape had to be wrought by hand.
The streets and paths were tight crammed with cactacae buying and selling in the market, arguing gruffly too low for Yagharek to hear. They pulled wooden carts by hand, two working together if the vehicle or load was particularly large. There were no constructs in sight, no cabs, no animals of any sort beyond the birds and a few rock-rabbits Yagharek caught sight of on the ledges of buildings.
In the city outside, cactacae women wore great shapeless dresses like sheets. Here in the Glasshouse they wore only loincloths of white and beige and dun cloth, exactly like the men. Their breasts were somewhat larger than the men’s, and tipped with dark green nipples. In a few places, Yagharek could see a woman carrying a baby held tight to her chest, the child unworried by the pinprick wounds its mother’s spines inflicted. Boisterous little gangs of cactacae children played on corners, ignored or cuffed absently by passing adults.
On every part of the pyramid temple were cactacae elders, reading, gardening, smoking and talking. Some wore sashes of red or blue around their shoulders, that stood out strongly against their pale green skin.
Yagharek’s skin was prickling with sweat. Wafts of woodsmoke blurred his vision. They rose from a hundred chimneys at all different heights, trickling gently into the sky and eddying in slow mushrooming gusts. A few hazy threads found their way up and seeped from the cracks and holes in the glass sky. But with the wind kept out and the sun magnified by the vaulted translucent bubble, there were no breezes or bluster to dissipate the fumes. The underside of the glass, Yagharek saw, was coated in greasy soot.
There was still more than an hour to sundown. Yagharek glanced to his left and saw that the orb of glass atop the dome seemed to be bursting with light. It was sucking up every scrap of the sun’s emissions, concentrating them and sending them vividly into every nook of the Glasshouse, filling it with unforgiving light and heat. He saw that the metal casing which held it was wired for power, with cables snaking down the insides of the dome and disappearing from sight.
The flat sand-garden at the top of the layered tower at the Glasshouse’s centre was covered in complex machinery. Exactly below the swollen nugget of clear glass was a huge lensed machine, with fat pipes snaking out into vats around it. A cactacae with a coloured sash polished its copper workings.
Yagharek remembered rumours he had heard in Shankell, stories about a heliochymical engine of immense thaumaturgic power. He looked carefully at the glowing contraption, but its purpose was quite opaque.
As he watched, Yagharek became conscious of the large number of armed posses that were evident. He narrowed his eyes. He was gazing down at them like some god, seeing every surface of the little cactus town in the fierce light of the glass globe. He could see almost all the rooftop gardens, and it seemed to him that on at least half, a group of three or four cactus were stationed. They sat or stood, their expressions unreadable at such a distance, but the massive, weighty rivebows they carried were unmistakable. Hatchets dangled from their belts, curved poleaxes glowed in the reddening light.
There were more of the little patrols beside stalls in the sprawling market, sitting alert on the lowest level of the central temple, and walking the streets with a deliberate step, rivebows cocked and ready.
Yagharek saw the looks that the armed guards received, the nervous salutations and the frequent skyward glances of the populace.
He did not think that this situation was normal.
Something was making the cactus people uneasy. They could be truculent and taciturn, in his experience, but the subdued air of menace was like nothing he had experienced in Shankell. Perhaps, he reflected, these cactacae were different, a more sombre breed than their southern siblings. But he felt his skin prickle. The air was fraught.
Yagharek concentrated, and began to scan the inside of the dome with a hard, rigorous eye. He focused carefully, went into something of a hunter’s trance.
He started looking at the edges of the dome. He took in the whole inside circumference in one long, slow sweep, then spiralled his vision carefully towards the centre, examining and investigating the circle of houses and streets a little way in, and then further in again.
In this exacting, methodical way, he could cast his eye on every nook and cranny of the Glasshouse’s surfaces. His eyes stopped briefly, momentarily, on imperfections of the red stone, then moved on.
As the day came closer to its end, the nervousness of the cactus people seemed to increase.
Yagharek came to the end of his scanning sweep. There was nothing immediate, nothing clearly wrong that leapt out at him. He turned his attention to the inside of the roof immediately around him, looking for some purchase.
It would not be easy. Some way from him the girders coalesced around the heavy glass globe, but on the underside of the glass they were not as protuberant. He believed that with some effort he could climb them: as, probably, could Lemuel and perhaps Derkhan or one or two of the adventurers. But it was hard to imagine Isaac clinging so close and holding his bulk suspended, crawling hundreds of yards of dangerous metal piping to the earth.
The sun was low outside. Even with the languorous summer evenings, time was short.
He felt someone tap his back. Yagharek raised his head up, lifting it out of the inverted bowl into the air of New Crobuzon, air that felt suddenly chill.
Behind him, Shadrach was crouched on the glass. He wore a mirror-helm, and held out a similar piece cobbled together from plate iron towards Yagharek.
Shadrach’s helmet looked different. Yagharek’s was a rude piece of rescued metal. Shadrach’s was intricate, wired and valved with copper and brass. At the top was a socket, with holes to screw in some fitting. It was only the mirrors that seemed a makeshift addition.
“You forgot this,” Shadrach said in his gentle voice, waving the helmet. “No waved flag, no word from you for twenty minutes. I’m here to check you’re alive and all right.”
Yagharek showed him the girders inside the dome. He and Shadrach discussed the problem of Isaac in urgent whispered tones.
“You must go down,” said Yagharek. “You must go by the sewers, with Lemuel as your guide. You must find your way as fast as you can into the dome. Send some of the mechanical monkeys to me, to aid me if I am attacked. Look inside.”