Changes

During the peak of the [[Horus_heresy#The_Siege_of_Terra_and_the_aftermath_of_the_Heresy|Siege of the Imperial Palace]], after the traitor forces broke through the Palace walls, the [[Imperial Fists]] and [[Rogal Dorn]] made used the Sky Fortress to make a massive move to reinforce the Palace defenses. They did so aboard after the traitor forces broke through the great Sky fortressPalace walls.

After facilitating the redeployment of Dorn and his forceImperial Fists, [[Titan| traitor Titans]] targeted the great ship, destroying it. The crew of the Sky Fortress piloted its final descent into [[Horus]]'s forces below. The impact detonated the ship's plasma reactors, creating a crater three kilometers across, inflicting heavy fatalities and searing eyes with the flash of its explosion.¹