OOC:
No worries! In the future, I'll move along something simple like that and do the rolls for you, so long as it isn't too dangerous.
The bottom of the slope drops you off into a web of caverns and tunnels. Each tunnel forks into two or three more, connecting at odd angles, with pits that lead ever deeper. Neph takes the lead here, guiding your group through a series of twists and turns. At some points you must descend, and at others you climb. The pixie moves with a practiced pace, and a purposeful gait. Obviously, it will not be easy to remember you own way back without her.
Neph slows her pace when one of the tunnels ends in a narrow, rocky tube traveling up and down. In the center of this tube, which is perhaps 5 feet wide, is a thick rope that reaches for dozens of feet (or more) upward and downward. Below, you hear the sounds of dripping water. Above, you hear a deep hum. Neph climbs into the column and with a powerful flapping of her wings, ascends upward.
It takes a bit of effort, but with the aid of your gear, the rope, and each other, you manage to the top as well. When your heads poke out of the column, you are met with a rocky cave. Two entrances, on opposite sides, adjoin this 30-foot-long room. These entrances are blocked by metal doors with no handles. On one side of the room, some of the wall appears to have been worn away. Rubble and stone little the ground beside the wall. Embedded in the rock is a section of thick, white material. Upon this material is carved a series of runes.