There are frequent drips of liquid from whatever ceiling there is above them, lost in the darkness. What little light there is gets reflected off Yrael's eyes, glimmering like a cat's eyes in the darkness as they move silently through the tunnels.

From the layouts they had been given, there should be a major records storage facility somewhere up ahead.

As they approach another juncture of tunnels, there is the faint, gravelly sound of the bottom of someone's boot shifting against the muddy floor around the corner, causing Yrael to come to a sudden stop.