'I've been better, captain. But I'm still here. Nice work.' gasped Pelaur, obviously shaken by their close call.

  'Yes, real nice work. I should have known there could be active bio-weapons.'

  'We're still alive.' pointed out Pelaur.

  'Yes, I suppose we should be thankful.' said Morten, making the sign of the aquila and pressing his glove to the small shrine beside him. He could see Harlen's squadron paralleling his course. From the lumps of flesh drifting past his canopy, he could see that as well as shooting down the bio-weapon, Harlen's squadron had also vaporised the original target.

  He thumbed the vox and said, 'Nine-zero-two, we're allright here. A little shaken up, but other than that we're fine. By the way, thanks. That was nice shooting.'

  'Don't mention it, sir' said Harlen lightly. 'Hold still now. I'm going to give you a once over, see how bad you're hurt.'

  'Right. Holding steady.' replied Morten, which was easier said than done as the Fury fought his every attempt to hold her in a straight line.

  Harlen's craft slid below and round the stricken fighter and came to rest off Morten's port wing.

  'How bad is it?' he asked, almost afraid of the answer.

  'It's not good, that's for sure. You've taken a lot of hits on the engine vectors so she's going to be hell to steer. And it looks like you're losing fuel. Not much, but we better get you home to the Vincennes before you run dry.'

  Morten suddenly realised how close they had come to dying. If even one piece of the bio-weapon's chitin shrapnel

  had hit the centreline fuel tank, they'd have been incinerated in a raging fireball.

  'Thanks. Get your squadron home to the Vincennes and we'll be back as soon as we can. If we need help we'll let you know.' said Morten. 'And let the tactical officers know about these things. I have the feeling we'll be seeing more of them.'

  'Yes, sir. You sure you'll be allright?'

  'We'll be late, but we'll get there. Now get out of here before I have to order you.'

  'Yes, sir.' acknowledged Harlen as his three Furies accelerated to combat speed and were soon lost in the darkness.

  'You ready to go home, Kiell?' asked Captain Morten.

  'More than ever.'

  Captain Owen Morten gingerly rolled the limping Fury towards home and slowly fed power to the engines, grimacing as the vibrations on the twisted airframe increased.

  It was going to be a long ride home.

  FOUR

  The unknown artist had used the entire chamber as his canvas. A mosaic of enormous proportions covered the walls, the ceiling and even the floor. The workmanship was exquisite: none of the shards of coloured glass that made up the mosaic bigger than a thumbnail. Larger than the Chapel of Heroes on Macragge, the scale of such a work was breathtaking: the chamber stretched over two hundred metres long and its barrel-vaulted ceiling rose thirty metres or more above them.

  Uriel and the Ultramarines walked in rapture around the perimeter of the long room, speechless in wonder at the magnificent sight, any faded expectations of Tarsis Ultra swept aside by the spectacular mosaic. Pastoral images of a rugged land of primal beauty stretched before them, the colours wondrously bright and vivid, the skill of the artist perfectly capturing the wild majesty of his subject. Glass mountains soared above glass seas of glittering azure, vibrant emerald fields teemed with proud animals.

  Uriel reached out and touched the wall, half expecting to reach within the mosaic and feel the sea. Breeze scudding

  across the foaming waves that broke on cliffs of dazzling white. Atop the mountains, he recognised a majestic marble fortress with columns and golden domes that made his heart ache with longing. The Fortress of Hera, rendered in such loving detail that he could almost taste the salt of Macragge's seas and smell the sweet sap of its highland firs in his memory.

  He could see the mosaic was having the same effect on Pasanius and Learchus, their faces alight with joy. Uriel craned his neck upwards, seeing a host of glass warriors at the hunt, mounted on horseback and wearing blue chitons, the loose, knee-length woollen tunics worn by men and women of Macragge in ancient times.

  Leading the hunt was a giant of a man with golden curls and alabaster skin, his face alive with love and strength, carrying a long spear and oval shield. Uriel froze before this image, overcome by emotion, as he recognised Roboute Guilliman. Many times had he gazed upon the pallid, dead face of his primarch in the Temple of Correction on Macragge, where his lifeless body was held immobile in a sepulchral stasis tomb, but seeing him portrayed like this, with so much life and animation, filled Uriel with a terrible ache of sorrow for his passing. Until this moment, Uriel had never given any credence to the tales that the primarch's wounds were slowly healing, and that he would one day arise from his deathly slumber, but seeing this sight, he could now understand why people needed to believe that such a mighty warrior could return from the void.

  Further along were scenes of battle, images of war from a bygone age when heroes stood as tall as mountains and could topple the earth with their strength. Here, magnificent and noble, Roboute Guilliman fought the armies of evil. Behind him, slinking from the shadows, an unseen champion of evil poised to deliver a treacherous deathblow. As Uriel's eye travelled further along the fresco he saw a warrior save Guilliman's life, masterfully rendered in chips of sapphire and glass as he thrust his bayoneted rifle deep into the enemy's belly. Sprays of rubies and garnet glittered from the wound.

  Another portion of this section of the ceiling showed Roboute Guilliman on bended knee, swearing his bond of brotherhood with the warrior people of Tarsis Ultra. To see such a display of humility from one so mighty as their primarch was a sharp reminder to Uriel of everything the Ultramarines fought to protect.

  Everywhere around the chamber there were new wonders and fresh visions of incredible beauty, but Uriel forced himself to tear his gaze away from the fantastical mosaic. Pasanius and Learchus stood by his side, similarly overwhelmed by this work of genius.

  'It's...' began Learchus, searching for words to do this masterpiece justice.

  Uriel nodded. 'I know. I have read of the Tarsis fresco, but had never believed it could be as magnificent as this.'

  Footsteps echoed through the chamber and the spell was broken. The mosaic was just a wall and the images upon it nothing more than glass shards. Uriel turned as Fabricator Montante, changed into more practical plain grey robes, led the council of war into the room. The senior officers of the regiments, each with an entourage of scribes, flunkies and adjutants trailing a respectful distance behind them, followed Montante towards the centre of the chamber.

  This portion of the room was sunken into the floor, where a number of marble benches and a long, low table were set, bearing clay jugs of mulled wine and wooden bowls of fresh fruit. Uriel stepped down into this sunken area and took a seat, examining his fellow commanders as they arrived.

  Montante was thin and seemed pathetically eager to please. His features were delicate and ascetic, though intense. He did not look like a warrior and Uriel wondered how he had achieved his position of authority here. Was the rule of Tarsis Ultra hereditary, democratic or did it still follow the primarch's meritocratic ideals? Was Montante capable of leading his people in time of war or would he need to be replaced? Was that decision even his to make? Montante busied himself pouring wine for everyone and Uriel politely shook his head when offered a goblet.

  Stagier had the look of a warrior. Uriel had heard tales of the Krieg Death Korp and how their colonels requested the most dangerous warzones for their regiments to fight in, the most lethal enemies to face. If Stagier conformed to type, then he had chosen a prime assignment for his soldiers. He sat raMisterod straight and appeared deeply irritated with Montante, also declining the wine.

  Rabelaq had the look of a man to whom soldiering was a way of life, though his ample gut told Uriel that the rigours of the battlefield were but a distant memory to the colonel of the Logres regiment. He enthusiastically accepted
a goblet of sweet wine and sipped appreciatively.

  Chaplain Astador accepted some wine and raised it in a toast.

  'May this brotherhood be united in its cause.' he said.

  'Hear, hear.' agreed Rabelaq draining his goblet and pouring himself another, but Astador was not finished with his salutation. 'And should any of you fall, I shall ensure that your skulls are granted a place of honour in our Gallery of Bone.'

  An awkward silence fell, until Montante said, 'Thank you, Chaplain Astador. That is most gratifying to know.'

  Uriel shared a glance with his sergeants as the last members of their group entered the chamber. Lord Inquisitor Kryptman limped towards their gathering, followed by a white robed acolyte wearing a cog-toothed medallion of bronze around his neck. Unusually for a member of the Adeptus Mechanicus, his hairless features were largely organic, save for the bionic attachment that covered his right eye. A number of hinged lenses of varying size protruded from the side of his skull, each capable of sliding forward to drop before his glowing red bionic eye.

  Kryptman stepped down to the benches with some difficulty and as his Adeptus Mechanicus companion joined him, Uriel was shocked to see that he moved on metallic caliper-like legs that protruded from the bottom of his robes. As the acolyte descended the steps to take his place behind Kryptman, his robe parted and instead of legs and torso, Uriel caught a glimpse of a thick, flexing brass tube connecting his chest to his artificial legs.

  The lord inquisitor eased himself down onto a bench, irritably shaking his head as Montante offered him some wine. He cast his gimlet gaze around the assembled company and grunted to himself, though Uriel could not tell whether it was in satisfaction or resignation.

  'This is a grand adventure.' said Montante, finally sitting down. 'Most of my time involves accounts, ledgers and all manner of boring logistical work for the factories. I don't think I've ever entertained such an esteemed group in the palace.'

  Kryptman gave Montante a withering stare. 'Fabricator Marshal, this is no adventure we are upon. It is a matter of the gravest urgency and most fearful nature. A tendril of hive fleet Leviathan approaches your world and you think it will be an adventure?'

  'Well, no, not an adventure in the traditional sense, you understand.' said Montante hurriedly, 'but it's certainly exciting, isn't it? I mean, it's not every day we get to fight a war, and I for one am looking forward immensely to giving these beasts a bloody nose.'

  'Then you are a fool, sir, and would do well to leave the defence of your world to those who understand the grave danger of a tyranid hive fleet.'

  'I object to your tone of voice, sir.' protested Montante. 'I am the planetary governor, after all.'

  'For the time being.' threatened Kryptman. 'Now, if we may continue? Let us be clear on one thing: I have seen, first hand, what it means to fight these aliens and it will not be an adventure, there will be no glory and little honour in their destruction. '

  'I declared their species Xenos Horrificus two hundred and fifty years ago and since that day I have studied, hunted and killed them, yet still know but the tiniest fraction of their xenology.'

  The inquisitor indicated the Mechanicus adept behind him.

  'To fight the tyranid you must first know it.' he said. 'This is Genetor Vianco Locard of the Magos Biologis, and he knows more about these xeno abominations than any man alive. He will be of great help to us. Magos, if you please?'

  Locard moved to stand before them and a brass rimmed monocle whirred into place over his red eye. As he laced his hands before him, in the manner of an academic, Uriel saw they were a smooth black metal.

  Without preamble, he launched into his discourse. 'The tyranids are a bio-eugenic race of xenomorphs from beyond the Emperor's light, first discovered in the 745th year of this current millennium by Magos Varnak of the Adeptus Mechanicus outpost of Tyran Primus in Ultima Segmentum, some 60,000 light years from holy Mars.'

  'Bio-eugenic? What does that mean?' interrupted Colonel Stagier.

  'It means that the tyranids are able to assimilate entire worlds and races, break them down into their constituent genetic building blocks and incorporate said constituents into their own physiology.' explained Locard.

  Seeing Stagler's, and everyone else's confusion, Kryptman said, 'Thank you, Magos Locard, but perhaps I should explain and keep things at a level everyone here can understand.'

  Uriel bristled at such a casual insult to his intelligence, and could see others frowning too, but Inquisitor Kryptman's notoriety preceded him and there were no objections as he continued: 'The tyranids are a monstrous nomadic race of predators from beyond our galaxy who ply the depths of space in vast hive fleets. Like locusts, they consume everything in their path, and as each foe is defeated it is assimilated, each future generation of tyranids becoming better adapted to hunt their prey. When they attack, they attack in their millions, swarming across a world like a plague and just as destructively. Everything, every blade of grass, every indigenous creature is engulfed by the teeming hordes. Millions of years of evolution is destroyed and uncounted millennia of hard-won development and growth are annihilated by the tyranids' insatiable hunger. The world's oceans are drunk dry, its skies boiled away and digested until nothing remains, save a barren rock, stripped bare of every living thing.'

  'But can they be defeated?' asked Stagier simply.

  Kryptman laughed humourlessly. 'Oh yes, Colonel Stagier, they can be defeated, but only at terrible cost.'

  'The cost is irrelevant.' said Stagier brusquely. 'All that matters is that we can defeat them, yes?'

  Inquisitor Kryptman arched an eyebrow before inclining his head towards Uriel saying, 'Colonel Stagier has a point. Perhaps Captain Ventris would favour us by recounting the tale of Hive Fleet Behemoth and the Battle of Macragge?'

  'It would be my pleasure, lord inquisitor.' said Uriel proudly, standing and clasping his hands behind his back.

  'Hive fleet Behemoth came from beyond the halo stars of the eastern fringe, its numbers too vast to count. Their alien ships descended upon Macragge, but the noble Lord Calgar, forewarned by Lord Kryptman here, had assembled a powerful fleet to defend the holy soil of our homeworld. Fearsome battle raged in space until Lord Calgar pulled back, drawing

  the hive fleet onto the guns of Macragge. Whilst the aliens were spread out and vulnerable, he turned and struck, his vessels crippling one of their accursed hive ships and fatally disrupting their fleet.'

  'I don't understand, Captain Ventris.' said Colonel Rabelaq. 'How could the loss of one ship cause so much damage to their fleet?'

  'I will answer that.' put in Magos Locard. 'To understand the motivational imperatives of the tyranids, one must first understand the nature of their consciousness. A hive fleet is made up of billions upon billions of living organisms produced in the hive's reproductive chambers by the Norn Queen. Essentially, each ship is a living creature, every organism that makes up that ship existing only to serve the ship, and each ship functioning only as part of the fleet. A gestalt consciousness links every creature in the fleet, from the mightiest warrior beast to the tiniest, microscopic bacteria of the digestion pools, creating a vast psychic consciousness we call the overmind, that is capable of exerting a monstrous will and alien intelligence. Of course these creatures have no individuality of their own and exist simply to serve the hive mind. If one can disrupt the psychic link between them, the lower organisms become confused, often reverting to their basic, animalistic natures. It is the key to defeating them.'

  'Yes.' continued Uriel, 'when Lord Calgar's fleet destroyed the largest hive ship, they were able to reap a great tally in bio-ships as the aliens' attacks became increasingly uncoordinated and random. Their fleet was driven from Macragge, and though thousands of spores, each bearing a tyranid organism, had been released above the polar defence fortresses, Lord Calgar gave chase to the fleeing enemy.'

  'He left his world undefended?' asked Stagier, disapprovingly.

  'No, colonel, far fr
om it.' said Uriel. 'The polar defence fortresses were held by Terminators of the First company as well as brave warriors from the defence auxilia and Titans of the Legio Praetor. Lord Calgar was confident they could hold, and pursued the tyranid fleet to the ringed planet of Circe. Together with recently arrived ships from Battlefleet Tempestus, he destroyed the tyranid fleet in a great battle. We had defeated the tyranids, but at a grievous cost. Hundreds of

  thousands died, the flagship of the Tempestus fleet, the Dotninus Astra, was lost and our entire First company was killed, including my own ancestor, Lucian Ventris. Only now does it regain its full strength.'

  Uriel sat back on the bench as Kryptman picked up the tale.

  'Hive fleet Behemoth was no more, but the tyranids had learned from their defeat and when they returned at the head of a new hive fleet - which we named Kraken - less than a decade ago, it was on a much greater scale. Entire sectors in the eastern fringes have been swallowed by the psychic interference of the tyranid warp shadow, and yet there is worse to come. I have detected a pattern amongst a seemingly random series of attacks across Segmentum Tempestus, Ultima Segmentum and even Segmentum Solar that leads me to believe yet another hive fleet is attacking, this time from below the galactic plane. I have named it Leviathan and it appears that a splinter fleet from Leviathan threatens this world. We must stop the tyranids, gentlemen. Here and now. For if the Shadow in the Warp is allowed to smother the divine light of the Astronomican, then Humanity will surely perish. Ships will be unable to navigate the warp, communication across the galaxy will cease and the Imperium will collapse. Make no mistake, we are fighting for the future of our very race and I am willing to make any sacrifice to ensure its survival.'

  The assembled commanders were silent as they took in the scale of the coming conflict, the stakes and their part to play in it. Even Montante now seemed to appreciate the seriousness of the situation and nervously chewed his bottom lip.