The source of incessant banging looks to come from two massive metal

doors leading down into places unknown. Something very big is pounding

from the other side, using such great force that the doors rattle as

if they are about to burst, but the many locks and bars in place seem

to keep it held. A great raging howl erupts from below, causing you to

jump back and giving form and vision to the mysterious thing beneath

you. A single key hole seems to be the only deterrent between you.