Tetrarch

F IFTY-EIGHT

Irisis was an early riser, normally up long before the scrutator. On going out Fyn-Mah's front door at sunrise a few days later, she was surprised to see Flydd in his chair, staring at a message sheet.

'You look horrible,' she said cheerfully. 'Should have stayed in bed.'

'I haven't been to bed yet.' He did not look up.

'Something else the matter?'

'Ha!' he said savagely.

'What is it?' He was like a barnacle in the mornings.

'Eiryn Muss can't find any way into Snizort. Therefore, I can't carry out my orders – to destroy this strange node-drainer.'

'What about a massed attack?'

'As soon as we begin, they would simply drain the field, stopping the clankers dead. I don't dare.'

'Well, Muss is the best spy there is. He may still find a way.'

'Not in time. Their great project is nearly complete; he knows that much. And the lyrinx are preparing for battle. We must attack now or lose what little advantage we have.'

'But without clankers…'

'We're doomed. So I have only one option left.'

'Oh no.'

'I'm afraid so. The node-drainer won't affect constructs since they don't rely on the weak field. I must go back to Vithis on my belly, agree to his demands and beg him for assistance. What price will he put on aid now? I can't bear to think. The scrutators will crucify me after this.'

'And yet you must pay the price,' she said, 'for even a small part of our world is better than none.'

'I must.' He had never looked more haggard or careworn. 'There's only one consolation and I'm sure you saw it too. The Aachim are like warring tribes, forced to unite though they hate each other. We may be able to make use of that, in time.'

'If we get the time.' Unfortunately the Aachim proved united and inflexible. Flydd had grovelled, a hideous sight; the Aachim had accepted his concessions.

Another four days had gone by before the preparations were complete. Now the battle was about to begin. Irisis was with Flydd at a command post on one of the flat-topped hills overlooking the battleground.

She surveyed the scene through the scrutator's spyglass. Snizort lay on a broad rise with lower, gently undulating land all around, grassland but with patches of scrubby forest, small, mostly boulder-topped hills and isolated clusters of sandstone boulders. The forest near the eastern wall had recently been cleared, the fallen trees forming barriers that clankers would find it difficult to cross. Inside the walls lay the Great Seep, a vast and bottomless mire of liquid tar surrounded by steaming, crystal-crusted vents and a number of pits, some large and deep, from which solidified tar had been mined for thousands of years. Smaller tar bogs and seeps littered the ground inside and outside the walls.

In ancient times, overflowing tar from the seeps had oozed down the low-lying areas, creating a series of black rivers that circled away from Snizort for as much as a league. These had long since dried out, and parts had also been mined, though much remained. Other, smaller seeps and bogs occurred here and there.

The Aachim had planned to attack the western and southern sides of Snizort with their constructs, while the human armies and their clankers struck at the eastern and northern walls, bombarding the land inside with flaming missiles in an attempt to set fire to the tar pits and even the Great Seep. It had not worked out that way. The lyrinx had come over the walls to fight the battle outside, preventing the clankers from getting close enough to fire over the walls.

'This is better than I'd hoped,' said General Tham on the first morning of the battle. 'They're fighting us on our ground in broad daylight and massed formations. We'll slaughter them.'

'Don't be a fool,' growled Flydd. 'They're working to a plan and so far it's going well.'

The struggle began slowly, with catapult barrages from either side, causing little damage, and skirmishes where small groups of soldiers attacked patrols of lyrinx. The lyrinx generally got the best of these encounters. In the afternoon the allies intensified their attacks, using flying wedges of clankers and constructs, though to Irisis the Aachim seemed to be holding back.

'There's a fire in the eastern battlefield,' she called. Irisis was one of many scribes writing orders for the messengers running in and out. 'And spreading fast.'

The scrutator ran his spyglass across the scene. Flames and black smoke were belching up along a line the best part of a league long. Other lines erupted as he watched.

'They've fired the ancient tar runs. Must have used spirits of tar to make it go up so quickly. I knew it could not be so easy.'

'The smoke will disadvantage them too.'

'Not so much as us, since it's blowing our way. And it buys them time. We can't cross the fires, even in clankers. They're like extra walls that will burn for days and then leave the ground impassable. They're breaking up our battle formations.'

'Can we put the fires out and break through?'

He shook his head. 'Even if we could spare the water, it won't put out a tar fire. The only way is to smother it with earth and pack it down hard. If you can find a way to do that in the middle of a battle…'

'Surely the constructs could cross the fires?'

'They probably could, but do you imagine Vithis will risk his people if we can't join them?'

The struggle continued. Irisis could only imagine the hell the battlefield must be. The black, stinking smoke, now rising along half a dozen curving lines, provided perfect cover and allowed the lyrinx to fight the way they preferred – from ambush. Being able to hold their breath for five minutes or more, they could take better advantage of it. The human casualties were mounting.

Late in the afternoon, Tham ordered three gigantic catapults to be wheeled up. Teams of brawny men loaded each with a boulder the size of a donkey, then turned capstans as big as cartwheels until the entire structure creaked with tension. The catapult master signalled to the command post. General Tham conferred with Flydd, who nodded. They signalled back.

The first catapult fired. The rock went only a hundred paces to slam into the side of a clanker and knock it onto its roof. The mechanical legs went back and forth in the air. Flydd cursed.

The catapult master ordered the second firer to take up the tension. The capstan was wound another turn but before the catapult could be fired the ropes snapped, scything through the soldiers like a sickle through wheat stalks.

'Order the last catapult to release the tension,' snapped Flydd. 'I thought you'd tested them,' he roared at General Tham.

Too late. The catapult had already fired, its gigantic ball soaring through the air right over the wall of Snizort, to slam into the ground inside. A few seconds later the ground shook, and sometime after that a ragged cheer was heard from the field.

'That's better,' said Flydd, 'but pull them right back for the night.'

As expected, the lyrinx attacked fiercely in the night, though the armies had also made use of fire. The bonfires surrounding their positions made it easy to pick out the enemy. The attack petered out some hours later and the rest of the night was quiet, though few people were able to sleep.

'It's almost as if they're playing for time,' said Flydd the next morning. 'They're not fighting hard at all, just keeping us away from the walls. I wonder what they're up to?'

It could not be called a battle yet. Periodically the ground shook from the impact of the giant missiles. The catapults could no longer get close enough to the walls to aim accurately, yet two lucky shots had broken through. Moreover, the field was constantly fluctuating, one minute allowing the clankers to move at near top speed, the next reducing them to a crawl.

'Is this their doing?' said Flydd, 'or are so many machines taking too much from the field.'

'I've no idea,' Irisis said. It was another worry.

On the third day of the siege the catapults began to use tar-coated missiles, hoping to set fire to the tar mires and pits inside the walls. It was hard to tell if they had succeeded, for there was smoke everywhere, but from the air Flydd's spotters had seen smoke issuing from one of the smaller pits. Flydd was busy in his tent and would not allow anyone in, though Irisis heard cursing from time to time.

Late in the afternoon of the fourth day, Irisis focussed on a convoy of clankers creeping along between the lines of blazing tar. A formation of soldiers, at least a thousand strong, marched behind.

'We're getting through!' she exulted.

The convoy approached an area of bare earth between the lines. The single file of clankers spread out, accelerating toward the waiting lyrinx.

'Now we'll see some action.' General Tham had come up behind them. Flydd was watching from his tent.

The racing clankers had gone out six abreast, firing their javelards in salvo. The lyrinx did not move. The pair of clankers in the middle stopped suddenly, front down as if they had run into a bog. The flanking ones now did the same. The clankers behind swung right and left to avoid them.

'What is it?' cried Tham. 'Spyglass, adjutant!'

He ran out with it. Tham snapped it open.

'Save yourself the trouble, Tham,' said Flydd wearily. 'It's a hidden tar bog covered up with earth. The clankers will never get out. The enemy will fire it, next.'

They watched the clankers' hopeless struggle to extricate themselves. The operators soon gave up, abandoning their machines and climbing back over them in desperate attempts to reach secure ground. Some made it. Many went into sticky tar and became as mired as their machines.

Behind them the rest of the force churned the dry soil to powder as they battled to escape the trap. The lyrinx rained missiles on them with catapults. Less than half the force escaped back into the smoke-wreathed lines.

Tham stalked away, grim-faced. Soon a messenger came running. 'Field's dropped suddenly, surr.' He passed Flydd a sealed packet. 'And there's this from Eiryn Muss.'

'I can see that,' Flydd said gloomily. 'They've divided and demoralised us, made us fear the solid ground beneath our feet. What now? All-out attack, or more of the same?'

'Depends what they want,' said Irisis, handing around mugs of black, sweet tea.

Flydd read the message, then drank the hot tea in a single gulp. 'According to Muss, they are determined to complete their secret project and then annihilate this army so they can move on all the eastern lands.' Flydd thrust the message into a nearby brazier. 'It's no good. They're taking too much from the field. Our clankers can barely go half-pace.'

'Even so, with the support of the Aachim…'

He spat on the ground. 'Vithis is only making a token effort, though his constructs have all the power they need. And I suspect…'

'What?'

'Once we look like losing he'll make a strategic withdrawal, unscathed, and still demand his share of the bargain. By then we really will be powerless to stop him. I've got to act now.'

'How?'

'It's all or nothing.'

'So you're saying -'

'We're going in to block the node-drainer. Tonight.'

'I thought you said there was no way to get in, secretly?'

'Muss has found one.' His meagre lips were compressed to purple. 'Through the front door, you might say. It requires a particular kind of scrutator magic.'

'I'm delighted to hear of it.'

'You shouldn't be.'

'Why not?'

'I haven't discovered any way of getting back out.'

'What did you mean, we? You can't be spared, Xervish.'

'The Council ordered me to. Besides, no one else could get you in there. We're going as soon as it's dark.'

He scribbled a new set of orders and sent them off. Irisis, Ullii and the scrutator were in the air-floater, hanging silently well above the thorn-covered southern wall of Snizort. It was a dark night with a heavy overcast. The new moon might bring some light when it rose, after midnight. They'd gone up at dusk. The army was supposed to make a diversion but it was nearly midnight and they were still waiting for it.

'I wish they'd get on with it,' said Irisis, looking over the side at the lines of tar fires, and camp fires beyond them.

'You won't once we begin.'

'You keep making these gloomy pronouncements. It quite puts me off my adventuring.'

'I won't dignify that with a response.'

'You used to be fun, Flydd. In a dark, twisted sort of a way.'

'There's no fun left in the world.'

Irisis gave up.

The onslaught began on the eastern side, evidenced by flares and screams. Ullii pressed in her earplugs and covered her eyes, but her face was screwed up in torment.

Irisis stirred. Not yet! Another battle began on the western perimeter. Still Flydd did not give the word. He was waiting for the third. Now it came with a cluster of blazing missiles arcing across the sky from the north.

'That's it,' whispered Irisis. 'And already people are dying to ease our way in.'

'A lot more will die if we fail.' He uttered words of power, scrutator magic she had no comprehension of. The air-floater and everything in it faded until just the faintest edge-shimmer betrayed it. In fog or mist, which they hoped for near to the ground, even that would be invisible.

Flydd gasped. 'Quick now. This is painful magic. I can't hold it long.'

The air-floater drifted high over the southern wall of Snizort, hanging in the dark. Lyrinx swarmed on the wall but did not see them. The battles on the other three sides were picked out by thousands of flares, the blazing tar fires and burning catapult balls, beautiful in the darkness.

'How are we going to find it, surr?' Irisis said.

'Ullii must get us there. You and I will block or destroy the node-drainer, if we can, and we'll try to get out again.'

'With the air-floater?'

He hesitated. 'Possibly.'

Irisis did not like the sound of that. It probably was a suicide mission. She said nothing about that to Ullii, who was curled up under the bench, as usual. Irisis felt guilty enough already. Ullii was not speaking to her or Flydd. The meeting with Nish at the Aachim camp had added injury to her previous feelings of betrayal.

The air-floater was now motionless in the still air, invisible in the mist. 'Come out, Ullii,' ordered Flydd. 'Show the pilot where to go.'

Ullii brushed past him, stormy-faced, and stood next to Hila. She said nothing, simply held her arm in the direction they had to go. The air-floater drifted that way. After a few minutes Ullii's arm swung straight down.

The machine dropped through the mist into clear air, settled and rocked gently on its skids. Outside it was as dark as the tar pits. The assault fires were just dull glows beyond the walls. The barrage of blazing balls had stopped.

Ullii moved two steps and disappeared.

'Seeker,' Flydd hissed. 'Stay with us.'

She came back. Ullii knew where they were. 'Hate you both,' she said audibly.

'I beg your pardon?' said Flydd.

She did not deign to reply.

Flydd clipped his cord to her belt. Irisis did the same to his. The air-floater lifted, its rotor just ticking over. They felt its wind but could not see it.

'No sound,' warned Flydd. 'They can still hear us.'

'And smell us too,' Irisis muttered. She could feel her heartbeat in her temples. They were going to be caught. They were going to be eaten.

'Lead the way, Ullii.' Flydd murmured words that took the spell off the air-floater, restricting it to them alone.

The seeker led them on a meandering route, like a snail trail across a brick path. Most lyrinx appeared in her lattice, so she knew how to avoid them. Most, but not all.

No one saw the lyrinx and of course it could not see them. It came running from the left, hit the cord between Irisis and Flydd, stumbled and fell. The impact sent them all flying. The creature sat up, a shadow that seemed to be feeling its ankle as it looked around in the dark. It had no idea what had happened.

Irisis held her breath. If she moved, it would hear her. She prayed that Ullii would not cry out. She could hear the creature sniffing, trying to work out what was wrong. She hoped it could not pick up their scent in the tar-laden air.

A knife shimmered as though moving by itself. It disappeared; the lyrinx gurgled; she smelt blood. It toppled forward.

'We need to keep a better watch,' said Flydd, wiping his blade on the corpse.

They crept across an open space, holding their staves in front to probe for pits and mires. Ullii's talent could not always pick out physical objects.

'Bog!' She stopped abruptly, extracting her little foot with a sucking sound.

Irisis caught a stronger whiff of tar. There were many tar bogs in this saturated ground. One step too far and it might take five minutes to get out again. If alone, you would never get out.

'What the hell's that?' hissed Flydd, staring back the way they had come.

'Looks like an attack on the southern wall,' said Irisis.

'That's not part of the plan.'

'Maybe it's the Aachim.'

'It had better not be. That'll ruin everything. Hurry, Ullii. I can't hold the cloaking spell much longer.' Irisis might as well have been blind again; in the next hour she saw nothing at all. Only Ullii knew where they were going, for she was navigating by her lattice. But knowing where they were going was not enough. She had to find a way to get there and that was harder than it seemed. Ullii's mind had a unique and tormented logic.

Fortunately, Flydd had an uncanny grasp of directions and had memorised all the maps they had of Snizort. 'We must go down,' he said as they crouched in the concealment of two spindly thornbushes. 'From the way Ullii's pointing, the location is deep underground.'

'We already knew that.'

'How do we get underground?'

'There are steps down into all the old tar pits,' said Irisis. 'And tunnels leading underground off them.'

'But which pit?' he mused. Flydd stood for a moment, then squatted again. His knees popped in the still night.

A light grew in the sky behind them. A flaming catapult ball swished overhead, to thump into the ground close enough that they felt the impact. Irisis held her breath but the flames went out.

'I thought you gave orders about not firing into Snizort tonight?' she said.

'I did. Bloody rabble. No wonder we're losing the war. Let's try the main pit. Can you find that, Ullii?'

'Yes,' she said almost inaudibly.

It was easy to forget she was with them. They skirted sucking bogs and the edges of pits that quaked like jelly underfoot. They walked trails of sticky tar before descending 741 steps into the biggest of the many pits on the map; they entered a cavern or tunnel that had an eye-stinging, bituminous reek. Irisis could feel the walls with her outstretched hands.

Flydd stopped just inside. 'I'd expect most of the lyrinx to be outside the walls, in the battle,' he whispered into the absolute dark. 'But not all. There will be guards within the tunnels, and other lyrinx moving about. Maybe hundreds. We have to be absolutely quiet.'

You're making all the noise, Irisis thought irritably. She was desperately afraid of this place.

'I'm having trouble holding the concealing glamour,' he went on. 'We'll have to be quick. If I lose it…'

They went forward. Most of the tunnels were unlit. Irisis had no idea where they were and she knew Flydd was just as lost.

Ullii saw clearly and moved steadily on. She saw the enemy too. Thrice she alerted them just in time and they huddled in a pungent crevice or dripping hollow while lyrinx hurried by. They wandered a maze of tunnels until Irisis, without touching her pliance, began to feel the field swirling all around her. She had never experienced that before. They had been underground well over an hour.

'How far, Ullii?' said Flydd.

She did not answer.

'Surely the place will be guarded,' Irisis said.

'From what? There are twenty-five thousand lyrinx outside. How could any intruder get this far?'

'We have! And we guard our precious things.'

'Lyrinx are not like us. They do not steal from each other; they do not sabotage or vandalise. Besides…'

She detected an ominous note. 'What is it, Flydd? What aren't you telling us?'

'You would not station guards close to a node-drainer. If they were there too long it would begin to… disrupt them.'

A memory flashed back. 'Like – the way it disrupted the rock of the mine at the manufactory?'

A long pause before he whispered, 'Precisely.'

'So this is going to kill us. It'll take our bodies apart.'

'Not if we're quick. Jal-Nish survived it, if you recall.'

She took him by the shoulders. 'How long before it disrupts us, Xervish?'

'How the blazes would I know?'

'Ten minutes? An hour? A day?'

'Maybe an hour. Maybe two. Depends how strong it is, and how close we have to get to it.'

She stood in the corridor, unmoving. 'Irisis?' said Flydd.

'So be it.' They continued, but shortly she stopped again, allowing the seeker to move around the corner out of hearing.

'What now?' he said irritably.

'What's it going to do to Ullii's baby?' she said in his ear.

'It will have to take its chances like the rest of us.'

'But it… Ullii… We've got to tell her. At least give her the choice.'

'We're all soldiers in a war, artisan,' he said harshly. 'You, me, Ullii and the child. If we fail, humanity is doomed and where is the child then? We must all follow orders. Is that clear?'

'Yes, scrutator.'

They hid from another guard. Flydd's glamour still held, for the lyrinx looked right at them without seeing anything. It peered around uneasily, sniffing the air, its skin patterning in the light of a distant lamp, before hurrying away.

'Glamour's failing!' Flydd was bent over, holding his belly. 'Barely… hold it.'

She helped him up and they hurried after Ullii who, no longer roped to them, had disappeared down the tunnel. Irisis was all knotted inside. This was going to go wrong, she knew it.

It began as the merest tickle across her shoulder blades, indicating that they were within the sphere of influence of the node-drainer. The sensation grew stronger. Soon the flesh beneath her skin was shuddering as it was tugged one way and another. Her stomach began to bubble like a brewing vat. Ullii gasped. Her body was racked by sinuous heaves. Flydd groaned and the cloaking spell vanished.

'Watcher!' hissed Ullii, sniffing the air like a dog.