Somehow, this strange "beast" or structure looked disgusting, as it was made up of hundreds or thousands of bats constantly moving from place to place.
They seemed to be intertwined by a strange energy that united them as a single body.
When they realized and understood what it was, that giant bat attacked them once again, forcing Louis to take up his gun and fire at the incoming attack. His bullet hit that huge wing and shattered numerous bats, but the damage done was rebounded in a matter of seconds, so the actual damage was minimal.
Still, he wasn't looking to hurt it. He was looking to reposition himself, and he succeeded.
Laura ran hard behind one of the rock pillars that "held up" the cave ceiling. She lunged to the ground, her gun pointed at the huge bat.
Without thinking, she pulled the trigger, aiming for the head.
The bullet completely shattered the head, but the damage was again minimal, as a bunch of bats soon recreated it.
The core was not there, unfortunately.