The Dark Lord

Distantly, attenuated by the cold air, a drum boomed out a solitary deep note.

Frontius leaned on his knees, gasping for breath.

The drum boomed again and the eastern sky was suddenly filled with a black cloud, winking with silver. Sextus watched the arrows rise—so many! How could there be so many!—and then plunge down into the forward works. The sound of metal rattling on metal, raining down on wood and stone, reached across the distance. An abrupt roaring sound followed and Sextus saw a mangonel set behind the Roman lines wind back, pause, then release with a thrumming snap. Flaming pitch flew up, arcing into the sky, trailing smoke in a spiral. Thousands of tiny figures, red cloaks black in the poor light, rose up along the forward fighting wall, javelins, spears, bows at the ready.

A great shout rang back from the heavens. Flights of arrows plunged down. All along the Roman lines, mangonels and scorpions bucked and heaved, flinging burning stones, red-hot pitch, spears into the killing zone within the outer canal. Tiny figures of men toppled back from the wall. At this distance, Sextus could not see their wounds, but his memory supplied the bloody, crushed faces, the sightless eyes.

'Come on,' Frontius grabbed his shoulder. 'We've got to get to the signal tower.'

Dust began to puff up into the sky. The sun, huge and distorted, was over the horizon, blazing light slanting down, right into Sextus' eyes. Half-blinded, he turned away. They started jogging again.

—|—

Khalid slid down the side of the dry canal, dirt spilling away under his feet. Two dozen of his men crowded around him, shields raised. His boots sank into the soft, muddy soil at the bottom of the watercourse. He was in shadow, but the Roman fortification rising up a hundred feet away was bathed in lucidly clear morning sunlight. Thousands of Sahaba swarmed across the ditch. A huge shout belled out from every throat. Khalid joined them, slipping and sliding in the mud as he tried to run forward. His bodyguards struggled alongside.

Allau ak-bar! The men climbing the far slope struggled through bundles of thorny brush intertwined with sharpened stakes. In some places, the dried thorn was already on fire, belching white smoke into a perfectly clear sky. Arrows hissed past. Khalid heard a thunk and looked over to see the iron point of a Roman shaft sticking through the nearest shield.

'Forward!' he shouted, strong, clear voice ringing out over the canal. 'Forward!'

He ran on, cursing the sticky black mud clinging to his boots. Bodies littered the canal, splayed in the surprise of death, feathered with arrows or pinned by javelin bolts. A huge burning stone plunged out of the sky, spitting flame and smoke. It crashed into three of the Sahaba running ahead of Khalid. He threw himself down, shouting in alarm. The stone bounced up, splintering into hissing chunks of green flame and flew past over his head. Khalid threw aside a flame-wrapped cloak and struggled up. Most of the men around him were dead, or afire, screaming.

Gasping, he plowed onward, coated with heavy mud. His shield was gone, lost in the mire, but his right hand still clenched the blade of night in a death grip. The slope loomed above him and he stared up, seeing his men still clawing their way up the incline. More arrows spiraled down out of the sky, but most of the shafts were falling behind him. He looked back, face smeared with mud and spattered with the blood of the dead. The sky was streaked with smoke. Burning stones shrieked past overhead, plunging into the masses of men swarming down the side of the canal.

Sahaban arrows whickered past, lofted up by Arab archers crouched at the edge of the watercourse. Khalid forced himself upright, joining the great shout lifting up from hoarse throats.

Allau ak-bar! He climbed past a sharpened stake, the tip splintered and smeared with blood.

More of his guardsmen climbed behind him. Two scrambled past, spears in hand, shields slung over their backs. Khalid hacked at thornbush, clearing the dry brown thicket out of his path. The Roman fighting wall was only yards away. Men in tan cloaks struggled along the wall, hacking up at legionaries stabbing down with spears and javelins. The young Arab paused, drawing a deep breath.

'Allau ak-bar!' he screamed, sprinting up the last few yards. The words filled him with wild strength. A dying Sahaba fell back past him, throat torn out, blood spreading on his cloak. Khalid leapt onto a cockeyed siege ladder, then swarmed up the rungs, leading with the black-bladed sword. Spears jabbed at him, sliding between his legs. Frantic, he hacked down, the keen edge of the blade shearing through an oaken haft. The Roman soldier shouted in rage, flinging aside his ruined weapon.

Another spear slammed into his side and Khalid grunted as the metal rings of his armor took the blow. More Romans, faces obscured by plain iron helmets and cheek-guards, grabbed hold of the ladder and twisted sharply. Khalid shouted in dismay, then toppled back down the slope, crashing into four of his men climbing up behind him. All of them went down in a tangle, sliding into the thicket. Khalid's head smashed into the base of an angled stake and the world cartwheeled around. Stunned, he slid lower on the slope.

Men struggled above and more Sahaba fell, speared or shot at close range by Roman archers. Khalid blinked sweat and blood out of his eyes. The sun blazed down, blinding him. Nerveless, the young Arab groped for his sword. The blade of night was gone, lost somewhere on the slope. Groaning, Khalid rolled over, staring around wildly.

Hundreds of Arabs streamed back across the canal, their attack broken. Burning stones shrieked down out of the sky, crashing into the mud. Lakes of pitch burned furiously, filling the waterway with poisonous smoke. There were still knots of men fighting along the rampart, but they were dwindling in number. The legionaries concentrated their fire and rushed to shore up threatened parts of the wall.

'No,' Khalid choked, barely able to speak. He felt sick, throat filled with bile. 'No!'

Someone shouted above him. 'There's a live one!'

Khalid froze, shoulder blades itching.

Out of the corner of his eye, something enormous moved in the sky.

—|—

'Hades!' Aurelian looked up in surprise, a wall of Praetorians in gleaming silver armor circling him. The priest Nephet was almost lost among their grim faces and muscle-bound arms, a thin, dry brown hawk in a plain robe. Black lightning flickered in a clear sky, reflecting in the prince's stunned eyes. The air above the forward wall shimmered and rippled with heat, revealing intermittent reflections of the earth below. The bulk of the bastion blocked Aurelian's view, but he could hear the sudden, strident din of battle. 'Priest! What is happening?'

Nephet's thin old face grew grim, his eyes half-lidded. 'The Persian magi, my lord, they are attacking the outer barrier.' He leaned on his staff, attention far away. The prince saw the old man's arteries throb at the side of his throat. 'Something is coming!'

Nephet's eyes flickered open, blazing with alarm. The hidden world was in upheaval, a vast, dark shape rushing towards him from the east. 'To arms, my lord! The enemy is here!'

—|—

Zoe swept through the air, a hundred feet above the canal. Below her feet, she caught a glimpse of archers arrayed in ranks on the hard-packed earth. The Arabs were plucking arrows—thrust point-first into the sand—and fitting them to the bow. In the brief moment she perceived them, a thousand men fit fletching to thumb, lifted their bowstaves, then loosed. Iron-tipped, gray-fletched shafts snapped out across the canal, lofting high into the smoky, dust-filled air.

Before the Arabs could react to the apparition towering over them, Zoe had to look away, searching for the enemy. Dahak's will gripped her in steel fingers while she, Odenathus and Arad rushed through the air in a tight triangle. The sensation of flight was dizzying. Around them a dark haze swirled and shifted, a formidable ward radiating out from the jackal. The Lord of the Ten Serpents laughed to see their paltry shield of Athena.

You are my hounds, his thought crashed into hers. I will defend, you will attack, bright teeth deep in the Roman neck!

A vast shadow fell across the Roman fortification, mightier than the towers, spilling across the rampart, the fighting step, the crowds of legionaries staring up, eyes wide in fear, faces a sea of white ovals. Ahead, the golden wall shimmered and rippled, sheets of ghostly light falling in a slow wave down the face of the barrier. Zoe recognized the pattern—an interlocking matrix of thaumaturgic will, dozens of layers deep, constantly shifting, in endless motion to deny an enemy purchase—the battle-projection of a Roman thaumaturgic cohort. She felt the serpent's will move the colossal arm of the shadow and Zoe answered, summoning the power in the earth, invoking the flat blue shades of water, the living flame of reeds and trees. There was no stone here, not save the