The Death Guard spilled through the breach and into the dome proper, figures in off-white armour

filling up the space inside. Decius saw hooded figures in black swarming like maddened ants through the smoke and dust, and beyond them... He blinked, drinking in the sight of the peculiar structure that dominated the dome. The briefing had told the Astartes to expect a standard Imperial sensor platform, perhaps with some recent modifications, but nothing more. Decius imagined they would penetrate the dome and find banks of cogi-tators, wave-monitors and the like. He could not have been more wrong.

Every tier of the dome's inner levels had been removed, making the entire space wide open. In the middle of the smoke-wreathed chamber there was a construct that seemed to be made of stone, but not the local variety of grey rock shot with mica. It was a rough-sided ziggurat hewn from different slabs of minerals in a panoply of colours. The stones could only have come from other worlds, that was obvious, but why? What possible reason could there have been for something like this, in a place this remote, where no one but a few hundred traitors would ever see it?

On the inside face of the dome there were patterns of lines and discs that seemed to go on forever, baffling the eye with illusions of depth and movement where there was none. Then there was the light and the sound, the same discordant noise he had heard on the headset. It was coming from the apex of the construction, rolling down the steep sides of the pyramid in slow, punishing waves. There was a figure up there, floating-Red lasers stitched the air around Decius's head, tearing his attention away from the ziggurat and back to the battle at hand. The Death Guard force

was large, but they had underestimated the number of turncoats clustering inside the main dome. He heard Rahl's voice on the vox, furious with tension. 'Encountering heavy resistance at objective!'

Decius slammed an enemy trooper to death, the blow sending the dead man into a ring of his comrades and in turn taking them off their feet. Captain Garro sliced through the Isstvanian lines with Libertas shining with gore, the bolter in his other hand banging with each kill-shot it released. Solun kept pace with his commander, gathering Rahl and Sendek to him. Hakur and his squad had the flanks as they pushed in towards the foot of the arcane construction. Decius laughed, the rush of the battle coursing through him, making a dozen more close-range kills with his bolter, blood flicking off his wargear. They were at the base of the ziggurat when a dull concussion rumbled through the dome and a set of blast doors caved in with an agonised creak. Muscled giants in purple and gold punched through the entrance and laid into the black hoods.

'Fulgrim's boys have decided to grace us with their presence/ said Garro, baring his teeth. 'Let's not let Eidolon say he made the peak before the Death Guard!' The moment of confusion in the defenders caused by the new arrivals was enough to give the men of the Seventh the opening they needed, and swiftly the battle-captain led the squad up the rough-hewn face of the pyramid.

Decius's gaze ranged up the steep, peculiar little mountain and found the apex again. Yes, he saw it clearly now. A woman was up there, and by some means she hovered, suspended in a cowl of glitter. Light popped and writhed around her shimmering

form, each tiny sun-bright flash accompanied by more sound, more shrieking, lethal noise that pounded into his eardrums.

'Blood's oath!' he shouted, barely loud enough for his words to carry over the horrific dissonance. 'What in the name of Terra is she?'

Garro threw a look over his shoulder and spat out a name. 'Warsinger.'

To the Brink

Triad of Skulls

New Orders

GARRO STOLE A glance down the sheer slope of the zig-gurat and saw the wild play of the battle spread out beneath him. All around the interior of the dome there was a churning sea of men engaged in the business of killing one another. Figures in black hoods swarmed at the white and purple shapes of the Astartes, laser fire flashing in chains of red lightning among the flares of yellow flame from bolter muzzles. Emperor's Children were scaling the pyramid beneath them, following the path his men were forging with every heavy boot step. Dust and stone fragments crackled with each footfall, the peculiar patchwork construct resonating with each tortured stanza of the Warsinger's song.

Garro pressed on, using the thick fingers of his gauntlets to dig handholds from the stonework and haul himself upward. He saw red granite, crumbly limestone and strange chunks of bifurcated statuary

as he climbed. The mess of bricks seemed to have no regularity in its design or purpose. They were close to the woman now, and the Astartes could vaguely sense voices on his vox, but the deafening operatic screams of the enemy champion flattened them under an indecipherable roar. The Warsinger was steady and unmoving, and strange etches of colour and light drifted around her, just as the lazy snowflakes had drifted out on the plains. She had her hands to her chest, her head back, throwing a keening dirge to the roof. The song was endless, without pause for breath or meter, each note locking to the next, cutting through Garro's attempts to think clearly. It was unearthly. No human throat should have been able to voice it, no human lungs able to give it breath. Some force about the razored melody was ripping and picking at the very air, cutting into the flesh of the real. The top of the dome rippled like water, warping.

Indolently, as if it were something done out of boredom rather than directed cruelty, the woman flicked her wrist and sent coils of shimmering aural force humming away down the lines of the pyramid. The waveforms caught around Pyr Rahl and hoisted him off the stone, flipping him over in mid-air. Ash came off him in wreaths, his armour puckering and bending in the wrong places. He released a strangled cry that ended in a crackle of bone as he imploded. The Death Guard's crushed remnants bounced away into the melee below. Garro snarled in anger at the casual manner of his battle-brother's death, charging upward.

Then, almost unexpectedly, he made the top, letting his bolter fall away around his hip on its sling. The battle-captain brought up Libertas in a firm, two-handed grip, and laid into the Warsinger. At his flank,

he was aware of Decius giving him covering fire, grimacing as the bolt rounds whined away in ricochets from the sheer energy of the wall of music.

The Warsinger turned her notice to Garro, resentment forming on her face as his attacks invaded her sensorium. He saw her shift and turn, the long streamers of her hair drifting past her screaming face. Holding on to the fury from the cold murder of his subordinate, his sword swept across and connected with her song-shield, the noise of the impact like a knife point drawn down a sheet of glass. Effortlessly, the enemy champion drew the sound in and threaded it into her cacophony, weaving it into the mad chorus.

In a flash of understanding, the nature of his foe was revealed to him. The Warsinger could not be brought down by the energy of light and heat. Only raw sound would be enough to kill her.

From the terrible mantra filling the dome space, the Warsinger teased out a single line of screaming clamour and spun it into a fist of glowing resonance. Garro saw the blow coming and shoved Decius aside, dodging away from her. She moved at the speed of sound, and with a sonic boom shocking the air into white rings of vapour, the Warsinger hit Garro with a hammer made of hymnals.

DEAFENED. FALLING. PAIN.

Decius's mind reeled with the edges of the impact, clinging to the simplest of reactions, barely able to process the sudden violence wrought upon him. The dome spun around and he felt the rough surface of the ziggurat rise up and strike him as he fell back along the slope of it. Decius's power fist slapped down flat and open palmed on a jutting piece of aged gargoyle and the fingers closed around it with a snap.