The fighting hadn't lasted too long. The combination of everyone's exceptional strength and coordination gave them a clear edge during the battle.
The hordes of creatures fell and died in front of the immoveable wall of human determination.
When Sera joined the fray, the battle was already close to its end, and by the time Lilith came to her senses, only a few monsters stayed standing. These, too, died quickly, with a few strikes from Lucy's scythe.
After the battle, Sera walked up to Mary and James, who also finished with their job. He brought up a large holographic map of the floor's energy lines. It was pretty confusing for Sera, but the two scientists explained everything.
"There are multitudes of different energy lines running around in the walls and floor. There are electrical cables, pipes full of some scorching liquid, and even some strange radioactive energy."