Corleonis

The massive fleet enters orbit of the planet. A line of ships spanning a continent sails slowly overhead, easily visible from the surface. A final transmission is sent. "Repent, for the Emperor protects."

Without further delay, the entirety of the fleet begins opening fire on Corleonis, indiscriminately bombarding the surface. The jungles are set aflame, human, animal, and xenos destroyed alike. The wall of flames reaches the city, and its tall towers are brought low by the cleansing fire of the Inquisition's orbital guns. Finally, the largest of the ships fires an Atmospheric Incinerator Torpedo. The skyscraper-sized bomb bursts into the sky, filling it with an almost beautiful array of blue red energy. Soon, however, the air begins to feel warm. And then, the entirety of Corleonis' atmosphere bursts into flames, obliterating the entire surface. A thousand screams seem to echo from the planet, as the remains of its populace are burned alive by the inescapable flames. Their lungs fill with the righteous conflagration, their skin melts and sloughs off, their bones blacken and crumble to dust beneath them. For a few minutes Corleonis seems to be a planet-sized fireball, but then the flames all but die down completely. The surface is glassed, and no life remains on Corleonis. It is utterly dead.