Diamond's surprising onslaught was doing notable damage to the Grime Slime, not because the individual strikes were doing much, but because she was piling upon many attacks. The slime spilled some of the acid from it's mouth, staggering it just as Delmina slammed her shield into it. It too didn't do much damage, but thanks to Diamond's onslaught the drain attack pierced right through the Grime Slime and dispersed it into a harmless mass of purplish goo. Not long after the remains of the lost and the slime dispersed. It would be some time before they would reform, allowing the three a moment of respite.
Near the Grime Slime was the source of the faint red light. It appeared to be a some sort of digital key-card, covered in ash. A quick search of the room would reveal a smaller room containing a relatively fresh looking corpse of someone who might've been through here before. Some poor revenant, now turning lost, curled up underneath the counter. The body was unresponsive to any interaction, even killing it, but nearby the body was presumably his equipment. A standard issue government bayonet rifle, a few throwing daggers, and more chemical lights. Aside from this room there was another hall opposite of the one the group entered, which would lead further down into the tunnel's depths.
It was a disaster.
Courage, strength, and skill could not help you when the stupidity and cowardice of others acted far more hastily. Many of the other revenants who went with you in the first group were jaded and apathetic. They would ignore your calls to stick together or in a group and proceed into the darkness. Barely ten minutes out pass before disaster struck. Screams and gunfire could be heard as the revenant thralls were attacked by some sort of Lost. You could hear it loudly crashing through the walls, smashing things apart and killing the thralls. Worse still, the Lost had managed to strike the bomb on one of the thralls. It's ability to go off at tampering was not because it was a technological marvel, but due to it's unstable craftsman ship. Without the right know-how, even a blow from a lost was enough to trigger the explosion, turning the unfortunate revenant into ash as well as collapsing the tunnel. And if that wasn't bad enough, the resulting shockwave collapsed the floor as well, sending the first group of revenant deeper into the earth.
Despite the chaos, Ambrosio was somehow alive, but alone. He could barely make out the level which he fell from, only that he had somehow fallen into what appears to be the actual railroad tracks where trains and such would be. It was surprisingly somewhat lit here; there were dim red lights on the ceiling, perhaps some sort of emergency light from days gone past? Either way it put everything in a dark but visible red hue. So far there was no signs of Lost or the other revenants you were with. There was only forward. Immediately ahead of you was a subway train cart that sat still and lopsided due to time and erosion. In a tunnel to the left appears to be a small hall crossing leading to another set of railroad tracks, one that weren't quite as affected by the explosion upstairs.