It's a dungeon and a spider cult, as promised - but there are loads of fun ideas in here that are really clever and keep it fresh. I love the cultist disguised as an abductee whose story immediately falls apart under any scrutiny or even mild observation of the surroundings. Things like that where players are very likely to overlook the obvious and then feel that any comeuppance is completely justified because the clues were so obvious in hindsight are so fun to play out.