(Spoilers up until the Demilich are fair game, but as I'm linking this to my players, please try not to spoil anything beyond that. Especially the Special Stuff about Serithiel, they're about to find that out next week.)
I've been running a group through Curse of the Crimson Throne for the last year and a half, maybe two years, and they're reaching the end of Skeletons of Scarwall. There was an encounter with Bishop Zev Ravenka, the Demilich, that I think must be shared.
I've been stalking the Paizo messageboards for a few years now hearing about how the demilich has wiped out entire parties in one or two rounds through use of Wail of the Banshee, and I've noticed all of the threads talking about how dangerous he is and how he's been a veritable Player Character Meatgrinder that has chewed up and spit out whole unaware parties. There's even a sidebar in the Skeletons of Scarwall book about how to weaken the demilich so that your party isn't utterly destroyed by him, so I figure this guy is a really tough cookie, right?
I actually overcompensated a little bit in the realm of anti-undead things that they received from my wandering "Varisian" trader Silviu (I'll have to start another thread all about him, that guy is fun), and I even allowed them to spend Harrow Points to end up at 1 HP away from death and stabilized instead of being slain outright, but in the end neither of those things ended up mattering.
Here's the scenario: The player characters (a Dwarven Cleric of Torag, a Half-Elven Swashbuckler, a Shoanti Ninja, a Human Monk, and a Human Shadow-Sorcerer) walk into the cathedral and everyone immediately OOC recognizes that it's a demilich, and IC a few of them make the Knw: Religion checks to know that disturbing the remains is a bad idea. I expected your typical preparations to take place; buffing spells, the Ninja and Swashbuckler flanking to get their sneak attacks off, etc. What I didn't expect was for the Cleric to stride right over to the remains, whip out his warhammer, and crack the skull for 2 damage over the head.
Everyone who isn't the cleric freaks out. They know what he just did, and they think they're toast. Two of the more rules-searchy players know that a Demilich can use Wail of the Banshee, and they're both figuring the party is screwed. Initiative is rolled, the demilich rolls highest and the cleric rolls right after him. Demiliches have to spend one round reforming their various dusty boney-bits into a serious threat, so it gets its one sluggish round off, and that's the only action it ever got to make. On his initiative count the Cleric figured he needed a way to weaken the Demilich and keep it from casting spells at them, so he uses his Protection Domain spell to cast Anti-Magic Field.
This turns the Demilich into a very angry, very shiny, very helpless Skull.
I looked through a Demiliches abilities to see what it could do in an Anti-Magic Field. It can't use spell, so Wail of the Banshee is out. It can't use Su Abilities, so there goes Devour Soul, Bestow Curse, Torpor, and Unholy Grace. Well it could just move out of the anti-magic field, right? Well... it's a Corporeal Undead that doesn't have wings, so that means it's 30 foot Fly speed is magical in nature. It's a Skull, skulls can't fly without magic. So there's that gone. It can't fly, it can't Wail, it can't absorb souls, it can't hurl people across the room, it can't even use its dust as a cloud. The Demilich retains it's Damage Reduction, and due to being in an Anti-Magic Field they can't use spells on it, but the thing has been reduced to a cursing skull that can do nothing but try to bite them if they get their fingers too close.
Initiative ends due to how long an AMF lasts and how utterly the demilich is dominated, and they proceed to draw a moustache and monocle on his skull, pry out his ruby eyes and ruby teeth, and then spend four straight minutes cracking him with a hammer in order to reduce him to a pile of demilich dust whose resurrection ability is...a Su, and he's in Scarwall, where souls are trapped in the building and bad things happen. So he's destroyed and I think that's the end of the matter, they loot his corpse and go about the rest of their merry way.
That isn't where it ends, but I'll make another post for the rest.