This night he would be working alongside Feather Witch. She had visited him that one time, in his dream. Apart from that, he had had no occasion to speak with her. Nor, he suspected, was she likely to invite an exchange of words. Beyond the mundane impropriety established by their respective class, she had seen in him the blood of the Wyval – so she had claimed in the dream. Unless that was not her at all. Nothing more than a conjuration from my own mind, a reshaping of dust. He would, if possible, speak to her, whether invited or not.

Rugs had been dragged outside and laid across trestles. The thump of the clubs the slaves used to beat the dust from them was like distant hollow thunder.

A flitting thought, vague wondering where the shadow wraith had gone, then sleep took him.

He was without form, an insubstantial binding of senses. In ice. A blue, murky world, smeared with streaks of green, the grit of dirt and sand, the smell of cold. Distant groaning sounds, solid rivers sliding against each other. Lenses of sunlight delivering heat into the depths, where it built until a thundering snap shook the world.

Udinaas flowed through this frozen landscape, which to all eyes in the world beyond was locked motionless, timeless. And nothing of the pressures, the heaved weights and disparate forces, was revealed, until that final explosive moment when things broke .

There were shapes in the ice. Bodies lifted from the ground far below and held in awkward poses. Fleshed, eyes half open. Blossoms of blood suspended in motionless clouds around wounds. Flows of bile and waste. Udinaas found himself travelling through scenes of slaughter. Tiste Edur and darker-skinned kin. Enormous reptilian beasts, some with naught but blades for hands. In multitudes beyond counting.

He came to a place where the reptilian bodies formed a near-solid mass. Flowing among them, he suddenly recoiled. A vertical stream of melt water rose through the ice before him, threading up and out from the heaped corpses. The water was pink, mud-streaked, pulsing as it climbed upward, as if driven by some deep, subterranean heart. And that water was poison.

Udinaas found himself fleeing through the ice, clashing with corpses, rock-hard flesh. Then past, into fissure-twisted sweeps devoid of bodies. Down solid channels. Racing, ever faster, the gloom swallowing him.

Massive brown-furred creatures, trapped standing upright, green plants in their mouths. Herds held suspended above black earth. Ivory tusks and glittering eyes. Tufts of uprooted grasses. Long shapes – wolves, steep-shouldered and grey – caught in the act of leaping, running alongside an enormous horned beast. This was yet another scene of slaughter, lives stolen in an instant of catastrophic alteration – the world flung onto its side, the rush of seas, breathless cold that cut through flesh down to bone.

The world… the world itself betrays. Errant take us, how can this be?

Udinaas had known many for whom certainty was a god, the only god, no matter the cast of its features. And he had seen the manner in which such belief made the world simple, where all was divisible by the sharp cleaving of cold judgement, after which no mending was possible. He had seen such certainty, yet had never shared it.

But he had always believed the world itself was… unquestionable. Not static – never static – but capable of being understood. It was undoubtedly cruel at times, and deadly… but you could almost always see it coming . Creatures frozen in mid-leap. Frozen whilst standing, grasses hanging from their mouths. This was beyond comprehension. Sorcery. It must have been . Even then, the power seemed unimaginable, for it was a tenet that the world and all that lived on it possessed a natural resistance to magic. Self-evident, else mages and gods would have reshaped and probably destroyed the balance of all things long ago. Thus, the land would resist. The beasts that dwelt upon it would resist. The flow of air, the seep of water, the growing plants and the droning insects – all would resist.

Yet they failed.

Then, in the depths, a shape. Squatting on bedrock, a stone tower. A tall narrow slash suggested a doorway, and Udinaas found himself approaching it through solid ice.

Into that black portal.

Something shattered, and, suddenly corporeal, he stumbled onto his knees. The stone was cold enough to tear the skin from his knees and the palms of his hands. He staggered upright, and his shoulder struck something that tottered with the impact.

The cold made the air brutal, blinding him, shocking his lungs. Through freezing tears he saw, amidst a faint blue glow, a tall figure. Skin like bleached vellum, limbs too long and angular with too many joints. Black, frosted eyes, an expression of faint surprise on its narrow, arched features. The clothes it wore consisted of a harness of leather straps and nothing more. It was unarmed. A man, but anything but a man.