and in return the bareheaded Astartes roared in assent, rejoining the fight.
'Magnificent,' breathed Decius, and Garro could sense the coiled need in the younger man, the yearning to run down the dune and press into Mortarion's company, to throw away all battlefield protocol just for the chance to fight within his master's aura. It was a difficult urge to resist. Garro felt it just as strongly, but he would not lower himself to duplicate the self-aggrandizing behavior of men like Gralgor.
Then the younger Astartes tore his gaze away and cast around. 'So this is the great creation of the xenos, eh? Not much to look at.'
'Human spacefarers once lived in cylinders such as this,' noted Sendek as he reloaded, 'in the deep past, before we mastered the force of gravity. They called them only colonies.'
Decius seemed unimpressed. 'I feel like a fly trapped in a bottle. What sort of inside-out world is this?' He gestured upward, to where the landscape curved away to meet itself kilometres over their heads. A thin bar of illuminators extended away down the axis of the cylinder, disappearing to the fore and aft in yellow clouds. Garro's eyes narrowed as he spied motes of dark green moving up there, shifting through the corridor of zero gravity at the world-ship's centre.
Hakur tensed at his side. 'I see them too, battle-captain, airborne reinforcements.'
Garro called out on the general vox channel. 'Look to the skies, Death Guard!'
On the blood-slicked sandbanks, Mortarion stabbed at the air with the blade of his scythe. 'The captain of the Seventh has keen vision! The xenos seek to distract us with easy kills, to keep our attention on the ground!'
The primarch gave Garro a curt nod and strode to the top of another shallow powder dune, ignoring the scatters of enemy needle-shot that whined off his brass armour. Mortarion let his hood roll back so he could turn his face to the caged sky. We must correct them.'
For a long second, Nathaniel found himself rooted to the spot by his master's casual acknowledgement, despite his best intention to make little of it. The favour of his primarch, of an Emperor's son, even for an instant was a heady thing indeed, and he found some understanding as to why men like Grulgor would go so far to court it. Then Garro shook it off and slammed a fresh sickle magazine into his weapon. 'Seventh, to arms!' he cried, bringing the bolter to his shoulder and sighting upward along its length.
The jorgall flyers came in numbers that dwarfed the ragged packs of land-based fighters the Death Guard met at the lake. Clad in a flickering green armour that wound about them in strips, the airborne xenos had sacrificed two of their limbs to their mechanical surgeons. In their stead were beating wings of sharp metal feathers, each edged like a razor. Feet had become balls of curved talons, and there were more of the lethal arc-throwers and needle-guns embedded in joints where they had keen fields of fire.
They came down whistling and hooting, met a wall of bolt shell and high-energy plasma and died, but this was only the first wave and more of them, green glitters in the sky, poured out of the gauzy yellow cloud.
Garro saw one of Hakur's men wreathed in humming glints of artificial lightning and smelled the stench of crisping human meat as a flight of the xenos flyers shocked the life from him. Nearby the dreadnought Huron-Fal deployed his missile packs and threw explosive death into the wheeling flocks, blasting dozens of them out of the air with the concussion. For his part, Garro moved carefully, low to the oxide sands, picking off the xenos in bursts of full-auto fire as they dropped in on swooping strikes. The attack pattern of the aliens was clear. They were attempting to push the Astartes back into the icy lake.
'Not today,' said the battle-captain to the air, clipping the wings of a large adult female. The creature spiraled headfirst into the sands and twitched.
He became aware that he had company. Garro