"What in all the hells is that!?" Reese shouted while trying to stand in front of Isa. she and the others had met up as soon as they had retreated.
The rumbling and crashing sounds from the lower floors had prompted them to do the one thing that made sense, take the freed prisoners, and retreat. The soldiers had followed the same plan with the dwarf commander and the elf captain pulling their troops back as well.
The humans had gathered with intentions to mount another attack when the rumbling stopped. But now that some monster had torn through the entrance of the dungeon to make its way in to the open world, they had begun to retreat in formation.
Creation is hard, cheer me up!