him.

'Do as you see fit, captain. I want to find out what that is.’ he said to Lucius, petulantly. He pointed. On the far side of the cleared space, three or four kilometres away, he could make out large white blobs in the far thickets.

'More trees.’ Lucius said.

Yes, but-'

'Oh, very well.’ Lucius conceded.

There were now just twenty-two warriors in the group led by Lucius and Tarvitz. They spread out in a loose line and began to cross the open space. The clearing, at least, afforded them time to see any megarachnid approach.

The storm above grew still more ferocious. Five more men were struck. One of them, Ulzoras, was actually knocked off his feet. They saw fused, glassy craters in the ground where lightning had earthed with the force of penetrator missiles. The shield-storm seemed to be pressing down on them, like a lid across the sky, pressurising the air, and squeezing them in an atmospheric vice.

When the megarachnid appeared, they showed themselves in ones or twos at first. Katz saw them initially, and called out. The grey things were milling in and out of the edges of the stalk forest. Then they began to emerge en masse and move across the open ground towards the Astartes war party.

Terra!' Lucius clucked. 'Now we have a battle.’

There were more than a hundred of the aliens. Cluttering, they closed on the Astartes from all sides, an accelerating ring of onrushing grey, closing faster and faster, a blur of scurrying limbs.

'Form a ring.’ Tarvitz instructed calmly. 'Bolters.’ He stuck his broadsword, tip down, into the red earth

beside him and unslung his firearm. Odiers did likewise. Tarvitz noticed that Lucius kept his grip on his paired blades.

The flood of megarachnid swallowed up the ground, and closed in a concentric ring around the circle of the Emperor's Children.

'Ready yourselves.’ Tarvitz called. Lucius, his swords raised by his sides, was evidently happy for Tarvitz to command the action.

They could hear the dry, febrile chittering as it came closer. The drumming of four hundred rapid legs.

Tarvitz nodded to Bulle, who was the best marksman in the troop. The order is yours.’ he said.

Thank you, sir.’ Bulle raised his bolter and yelled, 'At ten metres! Shoot till you're dry!'

Then blades!' Tarvitz bellowed.

When the tightening wave of megarachnid warriors was ten and a half metres away Bulle yelled, 'Fire!' and the firm circle of Astartes opened up.

Their weapons made a huge, rolling noise, despite the storm. All around them, the front ranks of the enemy buckled and toppled, some splintering apart, some bursting. Pieces of thorny, zinc-grey metal spun away into the air.

As Bulle had instructed, the Astartes fired until their weapons were spent, and then hefted their blades up in time to meet the onrushing foe. The megarachnid broke around them like a wave around a rock. There was a flurried, multiplied din of metal-on-metal impacts as human and alien blades clashed. Tarvitz saw Lucius rush forwards at the last minute, swords swinging, meeting the megarachnid host head on, severing and hacking.

The battle lasted for three minutes. Its intensity should have been spread out across an hour or two. Five more Astartes died. Dozens of megarachnid things fell,

broken and rent, onto the red earth. Reflecting upon the encounter later, Tarvitz found he could not remember any single detail of the fight. He'd dropped his bolter and raised his broadsword, and then it had all become a smear of bewildering moments. He found himself, standing there, his limbs aching from effort, his sword and armour dripping with stringy, white matter. The megarachnid were falling back, pouring back, as rapidly as they had advanced.

'Regroup! Reload!' Tarvitz heard himself yelling.

'Look!' Katz called out. Tarvitz looked.

There was something in the sky, objects sweeping down out of the molten, fracturing air above them.

The megarachnid had more than one biological form.

The flying things descended on long, glassy wings that beat so furiously they were just flickering blurs that made a strident thrumming noise. Their bodies were glossy black, their abdomens much fuller and longer than those of their land-bound cousins. Their slender black legs were pulled up beneath them, like wrought-iron undercarriages.

The winged dades took men from the air, dropping sharply and seizing armoured forms in the hooked embrace of their dark limbs. Men fought back, straggled, fired their weapons, but within seconds four or five warriors had been snatched up and borne away into the tumultuous sky, writhing and shouting.

Unit cohesion broke. The men scattered, trying to evade the things swooping out of the air. Tarvitz yelled for order, but knew it was futile. He was forced to duck as a winged shape rushed over him, making a reverber-ative, chopping drone. He caught a glimpse of a head crest formed into a long, dark, malevolent hook.

Another passed close by. Boltguns were pumping. Tarvitz lashed out with his sword, striking high, trying to drive the creature back. The thrumming of its wings

was distressingly loud and made his diaphragm quiver. He jabbed and thrust with his blade, and the thing bobbed backwards across the soil, effortless and light. With a sharp, sudden movement, it turned away, took hold of another man, and lifted him into the sky.

Another of the winged things had seized Lucius. It had him by the back and was taking him off the ground. Lucius, twisting like a maniac, was trying to stab his swords up behind himself, to no avail.

Tarvitz sprang forwards and grabbed hold of Lucius as he left the ground. Tarvitz thrust up past him with his broadsword, but a hooked black leg struck him, and his broadsword tumbled away out of his hand. He held on to Lucius.

'Drop! Drop!' Lucius yelled.

Tarvitz could see that the thing held Lucius by the shield strapped to his back. Swinging, he wrenched out his combat knife, and hacked at the straps. They sheared away, and Lucius and Tarvitz fell from the thing's clutches, plummeting ten metres onto the red dust.

The flying clades made off, taking nine of the Astartes with them. They were heading in the direction of the white blobs in the far thickets. Tarvitz didn't need to give an order. The remaining warriors took off across the ground as fast as they could, chasing after the retreating dots.

They caught up with them at the far edge of the clearing. The white blobs had indeed been more trees, three of them, and now Lucius discovered they had a purpose after all.

The bodies of the taken Astartes were impaled upon the thorns of the trees, rammed onto the stone spikes, their armoured shapes skewered into place, allowing the winged megarachnid to feed upon them. The creatures, their wings now stilled and quiet and extended, long and slender, out behind their bodies like bars of

stained glass, were crawling over the stone trees, gnawing and biting, using their hooked head crests to break open thorn-pinned armour to get at the meat within.

Tarvitz and the others came to a halt and watched in sick dismay. Blood was dripping from the white thorns and streaming down the squat, chalky trunks.

Their brothers were not alone amongst the thorns. Other cadavers hung there, rotten and rendered down to bone and dry gristle. Pieces of red armour plate hung from the reduced bodies, or littered the ground at the foot of the trees.

At last, they had found out what had happened to the Blood Angels.