Alchymist

'What's the matter with your machine?' said Tiaan, ignoring the question.

'The node has gone dead and taken all the fields with it.' Tirior was watching Tiaan, head tipped to one side, no doubt wondering how the walker could still move. It would not take her long to work it out.

'Merryl' Tiaan said quietly. 'Order your people to take the Aachim, before they attack us.'

Tirior's hand darted for the pack she wore on her chest. Tiaan hurled the walker backwards, slamming painfully into the wall.

'Take them,' roared Merryl, throwing his handless arm across Tirior's throat and twisting her other arm up behind her back. The freed slaves did the same with Minis.

'Him as well' Tiaan shouted, pointing to Nish.

'You misjudge us' Tirior said softly, but under her breath she was muttering in an Aachim dialect Tiaan did not recognise.

Tiaan felt power flow from her controller and the walker's legs slowly splayed. Had Tirior not been exhausted from the mancery that had got her into Snizort, she might have succeeded.

'Stop her mouth!' Tiaan cried.

One of the slaves wound a strip of cloth three times around Tirior's head and pulled it tight. Tiaan felt the flow ease. Her heart was beating irregularly and she felt faint. So close.

'You taught me the value of your word, Tirior.' Tiaan wrenched open the pack, Tirior had been reaching for a small glass tube, capped in gold, with a scintillating powder inside. Tiaan tossed it into the tar and pressed it down with one of the walker's feet. 'Bind them, please. Merryl.'

Cord was found in a storeroom and the three prisoners' hands bound behind their backs.

'I'm not your enemy, Tiaan,' said Nish. I was wrong about you before. I'm sorry.'

He seemed different to the Nish Tiaan had known. He was more sure of himself, less angry, and made no attempt to fight those who held him. But Tiaan could not forgive so easily. 'Every time I've met you I've regretted it, Nish,' she said wearily.

'We were looking for you, to bring you out of here.'

Tiaan activated the walker and moved away. 'I have a plan,' she whispered to Merryl.

'I thought you must.'

'I think, with my crystal, that I may be able to operate the construct. If you can direct me to the way out, it will carry us through the fumes. For a while, at least.'

'I know every tunnel/ he said.

'Lift me into the construct and I'll see what I can do. The tar around it will have to be cleared away.'

'I'll have it done.'

Taking the amplimet from the walker, Tiaan put it in her pocket, undid the straps and lifted herself on her arms. Merryl carried her across. 'I'm not too heavy, am I?'

He smiled. 'You're no burden at all.'

He boosted her up the side and she slid her legs in. As her feet struck the floor Tiaan's knees buckled. Her muscles might have been made from cloth. Pulling out the operator's seat she sat down hurriedly.

The layout was much the same as in her thapter. She pressed the small recessed button and a hexagonal tube sprang out. Flipping the cap open, she removed the crystal, which was pale blue and striated down the sides. She had never seen one like it. Slipping it into her pocket, she put the amplimet in its place. In her own construct, or thapter as she had called it after learning how to make it fly, she'd made a special device to reduce power.

Tlaan hoped that would not he necessary here, since she was drawing from such a distant node. In any case, she had nothing to build it with.

She pressed the hexagonal tube in and closed the cap. After a long moment, a faint whine came from below, and a subtle tremor. It was working!

It took hours to remove the great gouts of sticky tar, and the work was so exhausting that the slaves had to rest after every few strokes. The job had just been completed when Merryl cried, Tiaan, look out!'

She got the hatch down just in time, as an even bigger clot buried the construct completely. By the time that had been removed, the air inside was stale. A day had gone by since her escape from the patterner.

The black miasma, which had advanced and retreated a number of times, was now flowing steadily across the floor. It would be up to their knees within minutes.

'Better bring the prisoners on board,' she said to Merryl, who was anxiously watching the fumes. Tiaan popped the amplimet out and pocketed it, just in case. There was no room for trust; the whole world seemed to be against her.

The prisoners were brought in and taken below. Minis gazed sorrowfully at her, like a dog that had been kicked. Nish, who looked as though he hadn't slept in days, simply lay down, pillowed his head on his arms and went to sleep. Tirior showed no expression at all. She was the one to watch.

Everyone came aboard save the two who were mattocking away at the sticky tar on the right-hand side. When the black fog was at the level of their thighs, Tiaan called them in. Should a sudden surge overwhelm the construct now, it would be impossible to get out.

Merryl set guards on the Aachim and Nish. The remaining slaves went below, leaving just her and Merryl in the operator's compartment. It would be very cramped down there, with nine passengers. Tiaan reinserted the amplimet and took hold of the trumpet-shaped lever. The whine rose in pitch but the construct did not move.

'It's still stuck in the tar,' said Merryl. ' I don't think -'

'I'll try to work it free.'

He peered anxiously ahead. A billow of black mist was rolling towards them. Tiaan pulled down the hatch and fastened it. It became dark inside, except for the subtle glow from the plate in front of her. The front panel thinned to transparency. The outside was dimly lit by glowing globes that shone intermittently through the fog.

She wiggled the lever back and forth, ever so gently. The whine rose and fell. With a delicate shudder the construct pulled free and rose in the air until its base was at the level of the black fog. Tiaan edged it forwards.

'Straight ahead or to the left?' she said, after they'd been travelling a while.

'The way out into the main pit is straight ahead, but we may not be able to get through that way…' Merryl was looking at her expectantly. 'Is something the matter?'

She realised that she was frowning. I originally came here looking for Gilhaelith. He's a strange, unlikeable fellow, but he was good to me.' Even though he'd cared more for the amplimet than about her safety, Tiaan had to know that he was safe.

'He's an important man,' said Merryl. 'Surely the lyrinx will have taken him with them.'

'I was important to them, yet they panicked and left me behind. They may have abandoned him as well. Do you know where Gilhaelith was working?'

'In a tunnel excavated into the Great Seep.'

A tunnel in liquid tar? How can that be?'

'They froze it first.'

'How?' said Tiaan curiously.

'One of their Arts.'

'If he was left behind, can he possibly still be alive?' she said to herself.

'Not if he's still in the seep.' He looked through the front. 'But, perhaps, in the tunnels near it… We can go that way. It's not much further.'

Merryl was a man of the same heart as Tiaan. She thanked him, silently. 'He treated me kindly. I have to know.'

'Then go straight on.'

They came to a high point in the tunnel where the heavy black mist had not reached. Merryl cracked the hatch open to let in fresh air, but it stank so badly that he quickly closed it again. The construct went down sharply, plunging into fumes which the globes could not penetrate. Tiaan had to creep along, and even then was continually bumping into the sticky, gritty walls.

They turned a sharp bend, then another that formed the other half of an 'S', and the black fog thinned. Ahead, two tunnels diverged at a shallow angle.

'Which way?' said Tiaan.

Merryl was staring blankly through the screen. 'I'm.., not sure. The fog has confused me. Have we missed an intersection?'

'We could have missed fifty for all I could see.'

'Take the left. I think:

After a few minutes, Tiaan felt the right-hand side scrape on the sandy wall. Shortly afterwards the other side did the same and the construct shuddered to a stop.