Battlefleet Cadia - The Storm Breaks: A patrol group, delivering Cadian Kasrkin to the planet of Urthwart, were to make the discovery. They came upon Urthwart to find it already lost, enslaved utterly by Chaos. Nothing there could be saved, and the Kasrkin made ready towithdraw, perhaps suspecting they had arrived too late. In truth, the fact that they had arrived at all was the enemy's ultimate success. As the Cadians made ready to withdraw, the space around Urthwart was eclipsed by a Chaos fleetemerging from the Eye of Terror. At the centre of this armada of the Dark Gods, horrifying and incomprehensible, came the vast and terrible weapon known as the Planet Killer. In a matter of hours, Urthwart became a victim of the aptly-named Planet Killer -- the world and all it had ever contained committed instantly to history by this greatest of Abaddon's machineries. Like a herald of damnation, the arrival of the Planet Killer instantly announced to all that a new Black Crusade had well andtruly begun.As if answering some unspoken signal, the destruction of Urthwart coincided precisely with the emergence of Typhus' Plaguefleet, the fiend himself in command at the helm of his flagship, Terminus Est. The fleet was immense,accompanied most alarmingly by two Blackstone Fortresses (relics of Abaddon'sprevious incursions into the Gothic Sector) though now hideously altered so as to appear artefacts of Chaos rather than the ancient bastions they once were.If a stand was to be made, it was now. The Imperial fleet amassed at Ormantep, within the boundaries of a vast asteroid belt known as the Ilithrium Belt. It was here that the forces of the Imperium and those of the Dark Gods at last came face to face. The disruptive effect of the asteroid belt forced the fleets into brutally close range combat. Hordes of Chaos Attack Craft, and torpedoes unleashed at close range where their accuracy was highest, decimated the Imperial fleet. Even the fleet flagship, Honour and Duty, under the command of Admiral Pulaski, fellprey to the hungry guns of Chaos and exploded as its internal damage got the better of the ancient vessel. While strength of numbers and sheer firepower may have been advantages that lay squarely in the hands of Chaos, unbreakable faith and courage remained as ever the epitome of the Imperial Navy. If victory could not be gained at Ilithrium, defeat would at least be stalled.Captain Agenager, taking command of the fleet after Pulaski's demise, ordered the fleet into a cross formation, arranging their broadsides against the Chaos fleet where vessels could defend one another with massed firepower and turrets, fending off enemy Attack Craft and creating a vicious zone of crossfire to their port and starboard. The immobility of the formation left Agenager with little hope ofescape, but would at least stall the Chaos advance. With his decision made, Agenager and his fleet steeled themselves for the fight, praying only that their sacrifice would not be in vain.In the event, the sacrifice was not to be asked of them. As the Chaos fleet found itself stubbed by the unbreakable Imperial cross formation arrayed against them, its flanks first buckled then collapsed utterly as the mighty Battlefleet Agripinaa arrived to unleash its fury upon the Traitors. It was immediately apparent to Admiral Quarren, arriving at the head of the Battlefleet, that a final victory could not be achieved. Instead, his reinforcements could provide only respite andthe chance of escape to their comrades -- a chance which all the assembled Imperial Navy vessels gladly took, departing at once for the relative safety of port at Demios Binary.