**The dark tunnel continues to be dark. Assuming Jougo periodically casts fireworks he would notice that there was once a second layer of bars a few feat behind the first, forming a cage of sorts. There was a lever as well, but all of that has been replaced by holes in the wall/ceiling.
Eventually the group finds themselves in a large room that was mostly barren aside from the signs of several construction projects scattered about; anything of value appears to have already been taken. There were three other tunnels leading out of this room, a small sign next to each.
Left : Staging
There were some muted noises emanating from deep within the right tunnel.**
**The muted noise begins to get louder and clearer as the group approaches; it sounds like pickaxes with an undercurrent of chatter.
The group's path, however, is eventually blocked by bars of ice emerging from a 2' tall ice wall. There are several layers of bars, with each layer containing both vertical and horizontal lines. The inside of the bars appear to be filled with liquid water. Beyond the barricade lies several feet of ice-covered tunnel and far beyond that lies an opening into another room, this one lit by something out of sight. There is some sort of pile of dead, ice-covered.. ?Rhinoceros-Wargs? near the opening. Although it is hard to tell from this distance. Jougo can confirm, however, that they were basically Rhinocerwargs. That probably isn't natural. The ice privy in the hallway definitely isn't natural.
The ice is melting a little, even in this cool tunnel, but it'll be around awhile.**
**The ice turns out to be regular, highly breakable ice! That breaks easily! Anyone standing two close might have been splashed with some of the water that was within the bars. Some more of the liquid continues to leak out the bar edges lining the hole that is now in the barrier.
Jougo wastes no time and creates two more grenades as he runs towards the sounds of where pickaxes were. Is that maniacal laughter you hear? Maybe just a little. He is really trying not to start laughing yet...too much at least.