Delightfully disgusting :D The worm walls of the map really help selling the vibe! The concept is really straightforward and delivers well on the theme. The rebirth mechanic is really interesting and goes hand-in-hand with what seems like a proportionately deadly dungeon. This module would be really interesting to fit in a campaign, having the surviving characters leaving the mountain with all of their boons and banes.
The last room and conclusion I felt a bit ambivalent about:
- On one hand, the worm-then-PvP aspect comes a bit as a surprise: It’s only telegraphed by the ancient motifs, but this is the room you fight the worm-thing (it’s not explicitly saying this, but I feel like I’m 99% sure on this) and there’s also the statues holding up the ceiling, so there’s a lot of information to present and process at once in this room and it might end up feeling like an anti-climatic rug-pull.
- On the other hand, the transformation depends on failing a wisdom save, so it’s never really a given that it would happen.
I think if running this, I would probably adjust this last room to make it totally clear that whoever deals the killing blow becomes the next worm-thing, and let the players figure out the consequences.