The party scouts for like a super long time before they find some drow hanging other drow up. That’s weird, let’s kill them.
After killing like a whole bunch they ask, “Hey, so, wtf?”
They’re like, “We’re the Broken! I’m Broken Priestess Sassandra. We hate Lolth and Lolth Drow, and those were some Lolth Drow. We’re on out way to Zauvir to fuck up some more Drow but got lost. That’s our magic statue Aganast that helps us travel the melted rock parts, please don’t take it. Also there are no more drow ahead I promise and the DM rolled a 20 deception and I can prove it, but they didn’t actually end up taking the path that lead to the other drow so I didn’t even get to be smug about it but whatevs.”
They find a wall of lava and say “fuck it” and stop there for the night.