Battle for Grand Al'gul

The Battle for Grand Al'gul was a series of running battles against the Chaos Space Marine warband The Sactified by the Fire Angels Space Marine Chapter in the [[Cemetery World]s Grnad Al'gul System in 666.M41, at the behest of the the Holy Ordos. The Fire Angels acquiesced to their request and diverted from their course to intercept this powerful Chaos warband. During this long running series of battles against the Chaos Space Marines and their daemonic minions, the Fire Angels blocked their efforts to desecrate the resting places of the honoured dead and work hideous rituals in the ruins. These were fraught and brutal combats where not only the lives but the souls of the Space Marines were at stake. The Fire Angels succeeded in forcing their enemies to fight them in a series of assaults and counter assaults, with the Fire Angels maintaining disciplined order and using the cover provided by the marble forests of headstones and mazes of vaults to their advantage. The Sanctified responded with all the foul sorceries at their command, liquefying stone with their dark magicks and summoning roiling, chattering swarms of mindless daemonic beasts to harrow those that would dare to oppose them.

The Fire Angels Chapter paid a heavy price in the short but savage combat before victory was achieved, including the martyrdom of the Chapter Master Haran Stark in battle against a frost-rimed Greater Daemon of Tzeentch, known as a Lord of Change, while defending the sacred Narthex of Penitents, and the self-immolation of their Chief Librarian Mathias Dee in order to avoid Warp-possession. Eventually, their forces spent, the Sanctified were driven from the sacred sites and routed from the system; the planed apothesosis of the Sanctified's Arch-Sorcerer Ezrath cull to daemonhood utterly thwarted. Following the corrupted Chaos Space Marines force's defeat, Cull, a once-favoured Champion of Chaos was assassinated by his own apprentices in a brutal power struggle to control the shattered remains of his decimated warband as they fled Grand Al'gul.