The shortage of food was not the only thing grinding spirits down. Sickness was prowling the town, picking off the youngest and the oldest, the weak and the wounded. The youth who had shared Iavin’s watch since the siege began had died just two nights gone. Firewood was running short. Families were burning their chairs, their bed frames and roof timbers in their hearths.

The hardships of the mind were just as severe as those of the body. More than a week ago, just out of bowshot but within clear sight of the walls, a company of Horin-Gyre warriors had erected two huge poles. Spiked atop them were two heads: the heads, if the shouts of the enemy were to be believed, of Croesan, Thane of the Lannis-Haig Blood, and his son Naradin. Iavin could not be certain if it was true – his eyesight was not sharp enough to recognise those crow-pecked features at such a distance – but most within Tanwrye were inclined to believe it. After all, if Croesan still lived, he would have brought an army to their relief by now.

Iavin brushed snowflakes from his collar. An old woman had given him gloves – gloves that had once belonged to the husband the Heart Fever took from her, as it had taken both of Iavin’s parents – and without them he suspected his hands would have been too cold to hold his spear. He rolled his shoulders, trying to loosen the stiff muscles.

A point of light where there should have been none caught his eye. To the north, high up and far out in the heart of the Vale of Stones, a torch was burning. All else in that direction was utter darkness. There was no moonlight on this cloud-bound night. The yellowish fragment of fire bobbed like a solitary bright moth. Iavin blinked, suspicious that his cold and exhausted eyes were playing tricks. But the light remained, and one by one others appeared.

Iavin heard a muffled call from somewhere along the wall, and answering shouts. He was not imagining it, then. Others were seeing the same thing. Even as he watched, any last vestiges of doubt were dispelled. A long tongue of fire was slowly winding its way over a saddle in the pass. Scores of torches, carried by scores of hands, were coming south through the falling snow.

Horns sounded to call Tanwrye’s captains to the walls. There were signs of movement amongst the besieging army, too. Figures passed to and fro in front of the campfires, orders were shouted. And the torches flowing out of the Vale of Stones were in the hundreds now. Iavin watched the fiery river in a kind of numb amazement. It was almost beautiful, this vision of light and fire in the winter’s night; it would have been beautiful, had it not told him that death was coming for him, and for everyone in Tanwrye.

At dawn, they were still coming. Thousand upon thousand, company after company, the Black Road was flooding through the Vale of Stones. The rocky, snow-covered ground around Tanwrye was already thick with tents and with seething crowds. A constant rumble of noise drifted up and over the besieged town, like a never-ending peal of distant thunder.

Every warrior who could still walk had come to the walls to witness this gigantic assembly of their foe. Iavin Helt should have been resting by now, his watch long done, but nobody expected any rest today, unless it was the final, unending kind offered by the Sleeping Dark. He glanced down the line of grim-faced men that stretched along the top of the wall. There were not nearly enough of them to withstand the coming storm.

It was not only the number of these newly arrived foes that had stilled any hope in the hearts of Tanwrye’s defenders, but their nature. Sometime in the night, amidst that river of blazing torches out of the Stone Vale, the Battle Inkall had arrived. So many of their great raven standards were now visible in the heart of the enemy camp that older, more experienced men than Iavin had shaken their heads in disbelief and despair. Tanwrye’s garrison included some of the finest warriors the Lannis-Haig Blood could muster; not one of them thought himself a match for the ravens of the Battle Inkall.

Iavin’s stomach was knotted and growling. He could not tell whether it was hunger or fear. His throat felt tight, his mouth dry. His mind had emptied itself of thoughts, as if it too had been numbed by the night’s awful cold. Hidden behind heavy clouds, the sun climbed the sky. The day grew no warmer, the light no less subdued. Eventually, in the late morning, surges of movement spread through the Black Road camp. Like some great beast bestirring itself, the army rumbled into motion.

The assault was controlled, precise and overwhelming. It rolled on through the afternoon. The few stretches of outlying wall and palisade that had still been held by Tanwrye’s defenders were stormed one after another. A few survivors made it back to the main town walls; most of their comrades died at their posts.

Without pause, the Black Road host pressed closer and closer to the town. Beneath a sheltering cloud of crossbow bolts and arrows and stones, ladders were brought to the walls. So thick and relentless were the flights of missiles that those on the battlements who were not struck at once could only hunch down and press themselves against the stone, trying to ignore the cries and pleas of the less fortunate. Iavin, crouched low atop the tower, clenched his eyes shut. A hand was gripping his ankle. He knew it was an old man called Hergal, who had risen from his sickbed to come to the wall just that morning. He was already dead.

“Get up, get up!” someone was shouting.

It took a great effort of will, but Iavin opened his eyes and looked around.

Men were surging past him, going to meet a black-haired woman who was vaulting over the parapet. Her jerkin and breeches were dark leather, studded with metal. Iavin rose to his feet. It seemed absurd and impossible that the Inkallim – the infamous ravens of the Black Road – were here, within a few paces of where he stood. Hergal’s dead hand fell away from his ankle.

The woman ducked inside the first warrior’s blow, then drove upwards. She clamped one hand on his throat, stabbing her short sword into his stomach with the other. In a single movement she heaved the dying man backwards, knocking another warrior aside. She wrenched her sword free and spun to kick someone in the groin.

Iavin lunged at her with his spear. Her flank was exposed. He would strike her in the stomach, on the left side. He could see it happening, see her dying, in his mind’s eye. Yet she rolled away and the spearpoint glanced off her hip bone. Somehow – Iavin could not understand how – she turned so quickly that she had hold of his spear before he could recover. She was far stronger than he had ever imagined a woman could be. He let go of the spear and fled as more dark-haired figures spilled over the wall.

He ran blindly down from the tower and into the town, without a single glance back. A captain he did not know was gathering men beside a well. He seized Iavin’s arm, arresting his flight so abruptly that both of them almost fell.

“Stand your ground!” he shouted in Iavin’s face. “Arm yourself!”

Iavin reeled, his mind still a blur of noise and images. Someone thrust a short sword into his hand and he stared down at it. There was blood already on the blade.

“With me,” the captain was crying now, and Iavin was caught up in the rush and carried back towards the walls.

There was fighting on one of the ramps that slanted up to the battlements. No sign of Inkallim here, Iavin vaguely recognised as he pushed up with the others to join the fray. He fought against men who wore the ordinary woollen clothes of farmers or artisans, half of them armed with nothing more than clubs or small axes. The ramp was narrow, without the room for skill or precision. Iavin pushed and stabbed at whatever body appeared before him, concentrated only on not losing his footing on the incline. Time drifted.