Saying that the life forms are everywhere would ironically be an understatement.
Nodding to Kal, I draw in my arms, a feeble barrier to what lurks within these walls. I can sense them too, practically feel them, the cold chill of their bodies radiating off the walls, along with the slick, wet grunts of a creature long degraded. Hear the rustling of their bodies, the grizzly grating sound that echoes through the cavernous expanse, the sniff and grunt of creatures who lost all sense of reason eons ago. The only thing left in this maze is monsters, and even that is a generous assessment.
Perhaps even some of the walls are made up of the remaining debris of such creatures, fused into an amalgamation of wall and flesh, half alive and half dead, stinking with the putrid smell of rot and decay.