There had been no sign that the metal was not all one piece, no cracks, no grooves, no mechanism, and yet the circles span, each at a different speed.

Click, click, click . . .

Faster now, and faster. Glokta felt dizzy. The innermost ring, with the largest letters, was still crawling. The outermost, the thinnest one, was flying round too fast for his eyes to follow.

. . . click, click, click, click, click . . .

Shapes formed in the markings as the symbols passed each other: lines, squares, triangles, unimaginably intricate, dancing before his eyes then vanishing as the wheels spun on . . .

Click.

And the circles were still, arranged in a new pattern. Bayaz reached up and pulled the key from the door. There was a soft hissing, barely audible, as of water far away, and a long crack appeared in the door. The two halves moved slowly, smoothly away from each other. The space between them grew steadily larger.

Click.

They slid into the walls, flush with the sides of the square archway. The door stood open.

'Now that,' said Bayaz softly, 'is craftsmanship.'

No fetid wind spilled out, no stench of rot or decay, no sign of long years passed, only a waft of cool, dry air. And yet the feeling is of opening a coffin.

Silence, but for the wind fumbling across the dark stones, the breath sighing in Glokta's dry throat, the distant lapping of the water far below. The unearthly terror was gone. He felt only a deep worry as he stared into the open archway. But no worse than when I wait outside the Arch Lector's office. Bayaz turned round, smiling.

'Long years have passed since I sealed this place, and in all that slow time no man has crossed the threshold. You three are truly honoured.' Glokta did not feel honoured. He felt ill. 'There are dangers within. Touch nothing, and go only where I lead you. Follow close behind me, for the ways are not always the same.'

'Not the same?' asked Glokta. 'How can that be?'

The old man shrugged. 'I am only the doorman,' he said as he slipped the key and its chain back inside his shirt, 'not the architect.' And he stepped into the shadows.

Jezal did not feel well, not well at all. It was not simply the vile nausea that the letters on the doors had somehow created, it was more. A lurch of sudden shock and disgust, like picking up a cup and drinking, expecting water, and finding something else inside. Piss perhaps, in this case. That same wave of ugly surprise, but stretching out over minutes, over hours. Things that he had dismissed as foolishness, or old stories, were suddenly revealed as facts before his eyes. The world was a different place than it had been the day before, a weird and unsettling place, and he had infinitely preferred it the way it was.

He could not understand why he had to be here. Jezal knew precious little about history. Kanedias, Juvens, Bayaz even, they were names from dusty books, heard as a child and holding no interest even then. It was just bad luck, bad luck was all. He had won the Contest, and here he was, wandering about in some strange old tower. That was all it was. A strange old tower.

'Welcome,' said Bayaz, 'to the House of the Maker.'

Jezal looked up from the floor and his jaw sagged open. The word 'house' did little to describe the vastness of the dim space in which he found himself. The Lords' Round itself could have fitted comfortably inside it, the entire building, with room to spare. The walls were made from rough stones, unfinished, unmortared, piled haphazardly, but rising endlessly upward, upward. Above the centre of the room, far above, something was suspended. A huge, fascinating something.

It put Jezal in mind of a navigator's instruments, rendered on an enormous scale. A system of gigantic metal rings, shining in the dim light, one about the other, with further, smaller rings running between them, inside them, around them. Hundreds of them perhaps, all told, scored with markings: writing maybe, or meaningless scratches. A large black ball hung in the centre.

Bayaz was already walking out into the vast circle of the floor, covered in intricate lines, set into the dark stone in bright metal, his footfalls echoing high above. Jezal crept after him. There was something frightening, something dizzying, about moving across a space so huge.

'This is Midderland,' said Bayaz.

'What?'

The old man pointed down. The squiggly lines of metal began to take on meaning. Coastlines, mountains, rivers, the land and the sea. The shape of Midderland, clear in Jezal's mind from a hundred maps, was laid out beneath his feet.

'The whole Circle of the World.' Bayaz gestured across the endless floor. 'That way is Angland, and beyond, the North. Gurkhul is over there. There is Starikland, and the Old Empire, and over here the City States of Styria, beyond them Suljuk and distant Thond. Kanedias observed that the lands of the known World form a circle, with its centre here, at his House, and its outer edge passing through the island of Shabulyan, far to the west, beyond the Old Empire.'

'The edge of the World,' muttered the Northman, nodding slowly to himself.

'Some arrogance,' snorted Glokta, 'to think of your home as the centre of everything.'

'Huh.' Bayaz looked about him at the vastness of the chamber. 'The Maker was never short on arrogance. Nor were his brothers.'

Jezal stared up gormlessly. The room was even higher than it was wide, its ceiling, if there was one, lost in shadow. An iron rail ran round the rough stone walls, a gallery perhaps twenty strides above. Beyond it, higher still, there was another, and another, and another, vague in the half light. Over all hung the strange device.

He gave a sudden start. It was moving! It was all moving! Slowly, smoothly, silently, the rings shifted, turned, revolved one about the other. He could not imagine how it was driven. Somehow, the key turning in the lock must have set it off . . . or could it have been turning all these years?

He felt dizzy. The whole mechanism now seemed to be spinning, revolving, faster and faster, the galleries too, shifting in opposite directions. Staring straight upwards was not helping with his sense of disorientation, and he fixed his aching eyes on the floor, on the map of Midderland beneath his feet. He gasped. That was even worse! Now the whole floor seemed to be turning! The entire chamber was revolving around him! The archways leading out were all identical, a dozen of them or more. He could not guess now through which one they had entered. He felt a wave of horrible panic. Only that distant black orb in the centre of the device was still. He fixed his watering eyes desperately on that, forced himself to breathe slow.

The feeling faded. The vast hall was still again, almost. The rings were still shifting, almost imperceptibly, inching ever onwards. He swallowed a mouthful of spit, hunched his shoulders, and hurried after the others with his head down.

'Not that way!' roared Bayaz suddenly, his voice exploding in the thick silence, ripping out and bouncing back, echoing a thousand times around the cavernous space.

'Not that way!'

'Not that way!'

Jezal jumped backwards. The archway, and the dim hall beyond, looked identical to the one down which the others had been walking, but he saw now that they were off to his right. He had got turned around somehow.

'Go only where I go, I said!' hissed the old man.

'Not that way.'

'Not that way.'

'I'm sorry,' stammered Jezal, his voice sounding pitifully small in the vast space, 'I thought . . . it all looks the same!'

Bayaz placed a reassuring hand on his shoulder and drew him smoothly away. 'I did not mean to scare you, my friend, but it would be a great shame if one so promising were taken from us quite so young.' Jezal swallowed and stared into the shadowy hallway, wondering what might have awaited him down there. His mind provided any number of unpleasant possibilities.

The echoes still whispered at him as he turned away. '. . . not that way, not that way, not that way . . .'

Logen hated this place. The stones were cold and dead, the air was still and dead, even the sounds they made as they moved fell muffled and lifeless. It wasn't cold and it wasn't hot, and yet his back trickled with sweat, his neck prickled with aimless fear. He'd jerk around every few steps, stung by the sudden feeling he was being watched, but there was never anyone behind him. Only the boy Luthar and the cripple Glokta, looking every bit as worried and confused as he was.

'We chased him through these very halls,' murmured Bayaz quietly. 'Eleven of us. All the Magi, together for the last time. All but Khalul. Zacharus, and Cawneil, they fought with the Maker here, and each was bested. They were fortunate to escape with their lives. Anselmi and Brokentooth had worse luck. Kanedias was the death of them. Two good friends, two brothers, I lost that day.'

They edged round a narrow balcony, lit by a pale curtain of light. On one side sheer stones rose smooth, on the other they dropped away and were lost in the darkness. A black pit, full of shadows, with no far side, no top, no bottom. Despite the vastness of the space there were no echoes. No air moved. There was not the tiniest breeze. The air was stale and close as a tomb.

'There should be water down there, surely,' muttered Glokta, frowning over the rail. 'There should be something, shouldn't there?' He squinted up. 'Where's the ceiling?'

'This place stinks,' whined Luthar, one hand clasped over his nose.

Logen agreed with him, for once. It was a smell he knew well, and his lips curled back with hatred at it. 'Smells like fucking Flatheads.'

'Oh yes,' said Bayaz, 'the Shanka are the Maker's work also.'

'His work?'

'Indeed. He took clay, and metal, and left-over flesh and he made them.'

Logen stared. 'He made them?'

'To fight in his war. Against us. Against the Magi. Against his brother Juvens. He bred the first Shanka here and let them loose upon the world to grow, and breed, and destroy. That was their purpose. For many years after Kanedias' death we hunted them, but we could not catch them all. We drove them into the darkest corners of the world, and there they have grown and bred again, and now come forth to grow, and breed, and destroy, as they were always meant to do.' Logen gawped at him.

'Shanka.' Luthar chuckled and shook his head.

Flatheads were no laughing matter. Logen turned suddenly, blocking the narrow balcony with his body, looming over Luthar in the half light. 'Something funny?'

'Well, I mean, everyone knows there's no such thing.'

'I've fought them with my own hands,' growled Logen, 'all my life. They killed my wife, my children, my friends. The North is swarming with fucking Flatheads.' He leaned down. 'So don't tell me there's no such thing.'

Luthar had turned pale. He looked to Glokta for support, but the Inquisitor had sagged against the wall, rubbing at his leg, thin lips tight shut, hollow face beaded with sweat. 'I don't care a shit either way!' he snapped.

'There's plenty of Shanka in the world,' hissed Logen, sticking his face right up close to Luthar's. 'Maybe one day you'll meet some.' He turned and stalked off after Bayaz, already disappearing through an archway at the far end of the balcony. He had no wish to be left behind in this place.

Yet another hall. An enormous one, lined with a silent forest of columns on either side, peopled with a multitude of shadows. Light cut down in shafts from far above, etching strange patterns into the stone floor, shapes of light and dark, lines of black and white. Almost like writing. Is there a message here? For me? Glokta was trembling. If I looked, just for a moment longer, perhaps I could understand . . .

Luthar wandered past, his shadow fell across the floor, the lines were broken, the feeling was gone. Glokta shook himself. I am losing my reason in this cursed place. I must think clearly. Just the facts, Glokta, only the facts.

'Where does the light come from?' he asked.

Bayaz waved his hand. 'Above.'

'There are windows?'

'Perhaps.'

Glokta's cane tapped into the light, tapped into the dark, his left boot dragged along behind. 'Is there nothing but hallway? What's the point of it all?'

'Who can know the Maker's mind?' intoned Bayaz pompously, 'or fathom his great design?' He seemed almost to take pride in never giving straight answers.

The whole place was a colossal waste of effort as far as Glokta could see. 'How many lived here?'

'Long years ago, in happier times, many hundreds. All manner of people who served Kanedias, and helped him in his works. But the Maker was ever distrustful, and jealous of his secrets. Bit by bit he turned his followers out, into the Agriont, the University. Towards the end, only three lived here. Kanedias himself, his assistant Jaremias,' Bayaz paused for a moment, 'and his daughter Tolomei.'

'The Maker's daughter?'

'What of it?' snapped the old man.

'Nothing, nothing at all.' And yet the veneer slipped then, if only for an instant. It is strange that he knows the ways of this place so well. 'When did you live here?'

Bayaz frowned deep. 'There is such a thing as too many questions. '

Glokta watched him walk away. Sult was wrong. The Arch Lector, fallible after all. He underestimated this Bayaz, and it cost him. Who is this bald, irritable fool, who can make a sprawling idiot of the most powerful man in the Union? Standing here, deep within the bowels of this unearthly place, the answer did not seem so strange.

The First of the Magi.

'This is it.'

'What?' asked Logen. The hallway stretched out in either direction, curving gently, disappearing into the darkness, walls of huge stone blocks, unbroken on either side.

Bayaz did not answer. He was running his hands gently over the stones, looking for something. 'Yes. This is it.' Bayaz pulled the key out from his shirt. 'You might want to prepare yourselves. '

'For what?'

The Magus slid the key into an unseen hole. One of the blocks that made up the walls suddenly vanished, flying up into the ceiling with a thunderous crash. Logen reeled, shaking his head. He saw Luthar bent forward, hands clamped over his ears. The whole corridor seemed to hum with crashing echoes, on and on.

'Wait,' said Bayaz, though Logen could barely hear him over the ringing in his head. 'Touch nothing. Go nowhere.' He stepped through the opening, leaving the key lodged in the wall.

Logen peered after him. A glimmer of light shone down a narrow passageway, a rushing sound washed through like the trickling of a stream. Logen felt a strange curiosity picking at him. He glanced back at the other two. Perhaps Bayaz had meant only for them to stay? He ducked through the doorway.

And squinted up at a bright, round chamber. Light flooded in from high above, piercing light, almost painful to look at after the gloom of all the rest. The curving walls were perfect, clean white stone, running with trickling water, flowing down all around and collecting in a round pool below. The air was cool, damp on Logen's skin. A narrow bridge sprang out from the passage, steps leading upwards, ending at a tall white pillar, rising from the water. Bayaz was standing there, on top of it, staring down at something.

Logen crept up behind the Magus, breathing shallow. A block of white stone stood there. Water dripped onto its smooth, hard centre from above. A regular tap, tap, tap, always in the same spot. Two things lay in the thin layer of wet. The first was a square box, simply made from dark metal, big enough to hold a man's head, maybe. The other was altogether stranger.

A weapon perhaps, like an axe. A long shaft, made from tiny metal tubes, all twisted about each other like the stems of old vines. At one end there was a scored grip, at the other there was a flat piece of metal, pierced with small holes, a long, thin hook curving out from it. The light played over its many dark surfaces, glittering with beads of moisture. Strange, beautiful, fascinating. On the grip one letter glinted, silver in the dark metal. Logen recognised it from his sword. The mark of Kanedias. The work of the Master Maker.

'What is this?' he asked, reaching out for it.

'Don't touch it!' screamed Bayaz, slapping Logen's hand away. 'Did I not tell you to wait?'

Logen took an uncertain step back. He had never seen the Magus look so worried, but he couldn't keep his eyes off the strange thing on the slab. 'Is it a weapon?'

Bayaz breathed a long, slow breath. 'A most terrible one, my friend. A weapon against which no steel, no stone, no magic can protect you. Do not even tread near it, I warn you. There are dangers. The Divider, Kanedias called it, and with it he killed his brother Juvens, my master. He once told me it has two edges. One here, one on the Other Side.'

'What the hell does that mean?' muttered Logen. He couldn't even see one edge you could cut with.

Bayaz shrugged. 'If I knew that I suppose that I'd be the Master Maker, instead of merely the First of the Magi.' He reached forward and lifted the box, wincing as though it was a great weight. 'Could you help me with this?'

Logen hooked his hands under it, and gasped. It could hardly have weighed more if it was a block of solid iron. 'Heavy,' he grunted.

'Kanedias forged it to be strong. As strong as all his great skill could make it. Not to keep its contents safe from the World.' He leaned close and spoke softly. 'To keep the World safe from its contents.'

Logen frowned down. 'What's in it?'

'Nothing,' muttered Bayaz. 'Yet.'

Jezal was trying to think of three men in the world he hated more. Brint? He was simply a swollen-headed idiot. Gorst? He had merely done his meagre best to beat Jezal in a fencing match. Varuz? He was just a pompous old ass.

No. These three were at the top of his list. The arrogant old man with his idiotic prattle and his self-important air of mystery. The hulking savage with his ugly scars and his menacing frown. The patronising cripple with his smug little comments and his pretensions of knowing all about life. The three of them, combined with the stagnant air and perpetual gloom of this horrible place, were almost enough to make Jezal puke again. The only thing he could imagine worse than his present company was no company at all. He looked into the shadows all around, and shuddered at the thought.

Still, his spirits rose as they turned a corner. There was a small square of daylight up ahead. He hurried towards it, overtaking Glokta as he shambled along on his cane, mouth watering with anticipation at the thought of being back out under the sky.

Jezal closed his eyes with pleasure as he stepped into the open air. The cold wind stroked his face and he gasped in great lungfulls of it. The relief was terrific, as though he had been trapped down there in the darkness for weeks, as though fingers clamped around his throat had just now been released. He walked forward across a wide, open space, paved with stark, flat stones. Ninefingers and Bayaz stood side by side up ahead, behind a parapet, waist high, and beyond them . . .

The Agriont came into view below. A patchwork of white walls, grey roofs, glinting windows, green gardens. They were nowhere near the summit of the Maker's House, only on one of the lowest roofs, above the gate, but still terrifyingly high. Jezal recognised the crumbling University, the shining dome of the Lords Round, the squat mass of the House of Questions. He could see the Square of Marshals, a bowl of wooden seating in amongst the buildings, perhaps even the tiny yellow flash of the fencing circle in its centre. Beyond the citadel, surrounded by its white wall and twinkling moat, the city was a sprawling grey mass under the dirty grey sky, stretching all the way to the sea.