Player's Necromancer on his way to being a powerful Dictator, advice?

[Hellmuffin]

I am currently running RotRL, and I recently made a post about how the events of this will cross over into the Age of Worms game I shall be running next. I have always wanted one giant universe where all my players' actions affect the world they play in, regardless of characters. However, something happened this game that makes me excited to see how it will change the game world, and equally scared to see how the repercussions will play out.

The party is comprised of gestalt characters, and features:
CG Human Cleric/Fighter of Desna
CG (with CN tendencies) Dwarf Titan Mauler Barbarian/Fighter
LE Human Necromancer Wizard/Magus

This is a spoiler for Fortress of the Stone Giants, so keep that in mind.

Spoiler:

The party has just defeated Mokmurian, and accessed the library within Jorgenfist. The necromancer's goal in life is to create an army and become a Dictator, and now he is well on his way. He found out how to use the Runeslave Cauldron, and this got the gears turning in his head. Once they defeated Mokmurian, they went up and found Conna, telling her the giants are free. She decided she was going to spread the news, but our necromancer had a better idea. He persuaded her that the giants that are still filled with greed are already lost causes, as well as the ogres and hill giant tribes. He convinced her that instead of letting them retreat which would just endanger the lands, it was better to rally the still true of heart giants, and slaughter the evil giants. The dwarf, hating giants, found no problem with this, and the cleric decided not to be a part of it. She reluctantly agreed, and a week long battle occurred outside of Jorgenfist. His true goal was to take the corpses of all the giants and make them Runeslaves. After the battle, he told the other players to go off to Magnimar to sell their considerable amount of loot, while he studied the library about Karzoug and Xin Shalast. Once they left, his first order of business was to chuck Mokmurian in the Cauldron, and have him help take the corpses and make them all Runeslaves, and clean of Jorgenfist to make it a respectable base for the team. My questions are as follows:

1) Rules Question: Would Mokmurian as a Runeslave still be a powerful wizard, but be completely subservient to the necromancer now?

2) Story Question: What kind of effects would the influx of slain giants do for Karzoug's Runewell of Greed and his return due to the Sihedron runes marked on all the giants?

3) Players Perspective: How would you hide this new found army of mindless giants from the other players?

4) GM Perspective: How would YOU handle this if you were in this position as a GM?

Keep in mind, I feel this is awesome and I'm glad my players are having fun with this out of character, and I in no way want to inhibit this story arc. Again, it will be a history changing event if he pulls this all off, and it will echo throughout my Pathfinder games from here on out. But I love input from these message boards, and it helps me sculpt and form some crazy ideas for the future, so any opinion is welcome, good or bad.

[JohnHawkins]

1) Yes . However he gets an int penalty from the new template which will slightly reduce his power

2) Whatever you want. It is a stiry thing if you want Karzoug to escape he does. In this case I would certainly let the players know that all this carnage has increased the speed he will emerge from the runewell. This would have no effect on events unless they start taking time off for crafting/world conquest etc if they then wasted time I would consider having karzoug go free but that is really bad for the pc's

3) Not let them anywhere near my army of the dead as they will freak out and its party killing time. Rush them forwards to find and kill karzoug while keeping them away from here and then plan their murder as soon as Karzoug is dead. Alternativly sign on with Karzoug as his chief Lieutenant and murder my fellow pc's immediately. You need to use your Rune army ASAP as they decay so the alliance looks interesting , sign up with karzoug and then Conquer magnimar and Sandpoint as parts of his empire bring about his early rise. Alternatively ally with Korvosa and conquer magnimar for them giving you a strong position once the army starts wearing out.

4) You notice all options above involve killing the other pc's and becoming a bad guy suitable for another plot. That is where this is going the other 2 players will find out and then try to kill their former ally anything else would change alignment drastically. He is not just evil he is now a threat to the world. I don't think there is a good solution as a GM, I would consider congratulating the Necromancer PC and asking him to design a new character for the main plot while his evil character runs offstage following his plans for world domination so the mainline good pc's can stop him as that prevents immediate conflict

[Turin the Mad]

Keeping in mind the decaying nature of the undead, until the necromancer PC has the steady influx of funds to generate copious sihedron amulets for its constant gentle repose, I'd gently remind that player that he would do well to reconsider animating that army until he has income instead of adventuring loot. Said necromancer has a vested interest in the other characters being distracted/retired/deceased. He might have a spare sihedron amulet, so drape that on Mokmurion's zombified neck and use him as a scroll caddy/pet heavy hitter until he has a lot more downtime and squirreled away wealth to have something other than rotting meatbags for a retinue.

Presuming they're aware of Karzoug at this point - which they should be IIRC - the PC is going to recognize that if the Runelord gets out, he's a goner. Best to kill Karzoug, claim the hero's rewards ... then sneak off and build his army on the down-low.

[JohnHawkins]

Runeslave giants follow a different rule than normal undead, they get a DC15 Fortirude save each week and a stone giant has to fail 12 before it is destroyed so about 84 weeks minimum 12 weeks. Mokmurian would last much longer