I really should remember to ask more questions about a job before accepting, because I did not anticipate this, Léon thought as he gazed through his helmet at the rock wall before him.
From the job description, Léon had assumed that it meant they'd be be excavating around old stonework jutting out of the ground deep in the woods. As he looked at the cliff face, it dawned upon him just how inaccurate his impression of this job had been. Instead, the monastery had somehow ended up completely underground, something quite bewildering to Léon. He didn't think that the church would build a holy place underground where it'd be cut off from the sun and moon, so how did something like this end up down there? Perhaps a sinking foundation and centuries upon centuries worth of built-up forest detritus could push the ruin underground, but would it really sink so far as to be accessed by a hole in a rock wall? If this was from Orodrunn's time, it may very well have been magic that buried this place.
If the entire monastery was buried in a cavern, this meant it and the relics with could be much more well-preserved than if it had been half-buried on the surface, but it also meant a lot more dangers. Aside from the risk of cave-ins, there was always a chance that some left-over vestige of Orodrunn's evil could have survived within. Léon couldn't help but feel reluctant to enter the cave.
"If you want to lead the way, I'm fine with that," he replied to Neffy, "But it might be best if you don't get too far from the rest of the group, we don't know what's in there and we certainly don't want anyone to get separated in there." As a healer, Léon believed that prevention was the best medicine, but as a rather cautious adventurer, however, he was appreciative that someone else was willing to go first into that ominous cave.
"Now, I don't know how much all of you know about the background history of this place," he spoke to the rest of the group, "So for those of you who don't know, here's some background about this place. Long, long ago, Orodrunn was a divine servant of the Dark Lord Hidroroth. When his master was slain, Orodrunn took up the mantle of Dark Lord, rallied the remnants of Hidroroth's forces, and began his own dark crusade sought to subjugate the world and all who lived within it. Nations stood united against him, but his divine power was far too great to be stopped by mere mortal armies. When all seemed lost, the twin goddesses intervened, empowering their champion, the knight now known as Saint Lilianna, with the strength to shatter Orodrunn's black sword and strike him down. It was some time during this conflict that this monastery was lost. If it's been underground all this time, that'd explain why it took so long for it to be rediscovered."
"As for what's inside, I can't be sure," he continued. "It might be empty, inhabited by nothing more than spiders and bats, but I suppose there's always some possibility that some remnant of Orodrunn's evil from that time might survived within. I'd humbly suggest that we tread with care."
@Rune_Alchemist@Raineh Daze@Darner@Pyromania99@Zoey Boey 
