Planet Killer - Gothic War: Abaddon entered the Gothic Sector in 143.M41, using the mysterious Chaos artefact known as the Hand of Darkness to capture the Blackstone Fortress at Rebo V. He then rendezvoused with the Planet Killer and took it as his flagship. His first target was the world of Savaven, populated by members of the Ecclesiarchy.Cardinal Klein ordered the world's Imperial Commander to refuse Abaddon's demand for unconditional surrender. The Despoiler used Savaven as a trial for the Planet Killer's Armageddon Gun, destroying the planet in less than a solar hour and killing fourteen billion souls.One standard year later, the Planet Killer arrived at Saviour, a highly populated star system in the Lysades Sub-sector. After revealing the existence of the Planet Killer, Abaddon demanded that Saviour's orbital docks begin producing warships for the Black Fleet. The commander of Saviour had little choice but to agree in order to save the lives of eleven billion people.With the threat of Abaddon's Planet Killer looming over them, many Imperial worlds chose to surrender without a fight. Multiple sub-sectors fell out of Imperial control and with them a number of shipyards and orbital docks. As the Imperium faced increasing difficulties in repairing its own vessels, building new ones became ever more unlikely. With its critical early strikes, Chaos might well have won the war before it had even started.Abbadon took the Planet Killer to Fularis, where the Blackstone Fortress I orbited the world of Fularis II. At first the Imperials were optimistic as Abaddon's fleet had attacked from the other side of Fularis II, which meant that they would have to dare the orbital and planetary defence systems of that world, in addition to Battlegroup Merlin, to reach Blackstone I. The Imperial forces had recently upgraded their weapons at Fularis II for just such an occurrence and they doubted that even with two Blackstone Fortresses in his possession the Despoiler would survive their assault.But Borgia's early optimism was to be cruelly shattered as once again, Abaddon rendered the Imperial Navy's defences woefully ineffective. The two Blackstones took up station some seventy-five thousand leagues from Fularis II, just out of range of the world's weapons platforms, except for the torpedo launchers.An energy surge was soon picked up between the two fortresses. Other recovered evidence pointed towards an energy beam being unleashed towards Fularis II. The battleship Vindictive was caught full-on, her shields overloaded instantly and her outer hull vaporised as the energy wave passed over the ship. Fularis II was later found with its atmosphere stripped off and the surface scoured to a rocky plain. Of Blackstone I, there was no sign.In 146.M41, the Planet Killer was spotted moving towards the Imperial world of Stranivar in Bhein Morr. Stranivar has been blockaded for two standard years, but still refused to surrender. Communications were lost with Stranivar and when an investigating fleet arrived to determine the planet's fate they discovered much to their horror that much of the Hive World had been devastated by meteors created by the destruction of all three of its moons.One standard year later, in 147.M41, an Imperial flotilla encountered the Planet Killer as it left Warpspace and was entering the Corain System. They attacked immediately before the rest of Abaddon's warfleet could arrive. After causing considerable damage, the Imperial fleet was driven off by the Planet Killer's immense arsenal.Abaddon's forces invaded Corain VI and took over its strategically important trikali crystal mines. Loyalist guerrilla fighters reported that considerable amounts of trikali crystal were shipped into orbit, where the Planet Killer was stationed. Trikali crystal is mainly used in the anti-magnetic containment fields of Warp generators and Plasma Reactors.Abaddon invaded the Drakulu System in 148.M41 and enslaved the two million inhabitants of the star system's main planet, an Agri-world. It is widely believed that many of these slaves ended up as ritual sacrifices for Zaraphiston's fell magics, the remainder being forced into service as crews on the Planet Killer and other Chaos vessels of the Black Fleet.By 150.M41, Zaraphiston predicted that the Warp Storms affecting the Gothic Sector would end soon. Abaddon quickly moved his fleet out of the Drakulu System and met with the Blackstone Fortresses under his control. At this time, news reached Abaddon of Imperial reinforcements gathering in the Tamahl Sector, ready to counter-attack into the Gothic Sector through the Tarantis Warp Jump point.Abaddon sent the Blackstone Fortresses to destroy the Tarantis star and thereby prevent his enemies from using the system's Mandeville Point, while he took the Planet Killer to the neighbouring Boetia System.Using the power of the Planet Killer, Abaddon eradicated the Adeptus Astra Telepathica facility in Boetia's asteroid belt, cutting off the navigational beacon that would have helped any Imperial warships daring to jump through the Warp Storms into the besieged Gothic Sector.