After leaving the underground area of the castle, Irving took the time to seal it off completely. No matter if Elder Kent emerged victorious or if the numerous Dark Monsters triumphed, there was no way to enter the castle's underground area in the near future. This directly resulted in the interruption of Irving's previous plans.
Without thoroughly eliminating the dark forces within the castle, it was impossible for Irving to relocate the shelter to this side. Once he had secured the closure of the underground area, Irving returned to the castle's aboveground section. At this point, there was no longer any sound of battle echoing through the castle.
Members of the Night Blades had fled in a panic. They seemed to have realized that Elder Kent had met with ultimate destruction. In the aboveground section of the castle, only Aron and a few others remained to face him.