Eventually, you chose the trap doors to seal up, and entered the trap door near the shrine to Iroas. The moment you all stepped into the underground area, you all felt a deep chill resonate up and down your spine. As it subsides, you all looked around. It was almost pitch black, and a stone path, likely carved by the Augustan builders of the castrum, extended out in front of you, into the darkness. Those with darkvision can barely make out that it curved left around 40 or so feet away from your current location. Empty sconces for torches or lamps dot the rock walls, most of them having rusted over, presumably from centuries of disuse.