[Meta Thread] Pokerole Mystery Dungeon: Primal Shadows

[Dragonstrike]

For the rumble that is filling that tunnel: where is the discription of it first mentioned? Or can someone just tell me what's it's like? Because I need a jumping off point to brainstorm, and Exams and other stuff have fried my brain when it comes to being observant in the campaign atm...

The description of the rubble was mentioned when you first entered the room, right before Vilucard dropped from the ceiling.