Death, more death, and undeath

Pox, the brave-but-not-so-wise rogue, was nursing a sprained ankle when the party moved down a narrow corridor to the south, and cautiously approached a room full of webbed objects. Not cautiously enough, however, as the barbarian(?) found herself trapped in a nearly invisible web outside of the doorway. Fortunately it was just a web. It would have been really icky if there had a been a big, hairy spider lurking nearby.

Oh yeah, there WAS a big, hairy spider, and it WAS lurking nearby. It dropped down and quickly incapacitated its victim with a well-placed bite. Someone got the bright idea that they could rush past a big arachnid with not 4, not 6, but EIGHT legs. I think they almost pulled it off, but ended up tangled on the ground with whoever it was that had been trying to occupy that space.

In the end, the poor, hungry spider was no match for the adventurers, who killed it dead. They searched the room and found an interesting pearl, but little else, so they went back up the narrow hallway to continue their adventure.

This time, they took a right and headed into a dark chamber with a large sarcophagus in the middle. They were eager to see what might be in a large sarcophagus, and probably not surprised to find that it was a large, dead thing. Mostly dead, at least. Undead, we'll call it. It rose from the grave and lumbered over to the party, who felled it.

During the combat, some other 'mostly dead' specimens joined the combat, and they, too, were re-killed by the party.

At the conclusion of the combat, the adventurers searched the sarcophagus and discovered an earthen ramp, of sorts, that descended deeper into the darkness.

Would they dare descend into the darkness?