So, here's the deal. I decided to change up things by having Nualia's plan be a little quicker to come to fruition. It's been about two weeks since the Swallowtail Festival and she's ready to launch the big raid on Sandpoint. The PCs attacked Thistletop. They kicked in the front door, killed all the goblins, killed the Tentamort, killed Bruthazmus, and then fled before Nualia and her henchmen. My call on the matter is that Nualia has decided she doesn't have time to continue hunting before the raid. She's going to take the reins of the Thistletop goblins that yet survive and gather the tribes. She's going to get them to attack Sandpoint. She'll give them her dark blessing and leave the battle to the chiefs.
After all, she doesn't care who wins. She just cares that it's bloody.
I'm thinking that it's going to be too much for Orik. The module mentions he's having reservations about this, so I've decided he only learned the full extent of the plan now and has decided to pack it in. Bodyguarding her and helping her make a transformation is one thing, but butchering the entire village of Sandpoint to make an army of monsters is causing him to flake. He's going to leave Nualia's group and head for Sandpoint post haste. Once there, he'll tell the players of Nualia's plan regarding the runewell. He has no idea how to use it himself, he doesn't care about such things. He also doesn't know how to disable it. He's just going to tell them that Nualia has no intentions of capturing the town and intends to destroy it. He'll hang around long enough to see if the town wants to hire him on to help defend them. If not, he's fleeing before the goblins arrive.
I'm going to be assembling a cheat sheet of the major NPCs in the town and rough class levels. The PCs are going to be put in charge of organizing the defense itself. They'll have full use of the town watch and Sheriff Hemlock to be certain. From there, they are going to have to gather allies. I'm looking at running this in two sessions. The first session will be making their plan and rallying the defenses. The second game session will be the battle for Sandpoint, since I expect that to take a while.
What I'm looking for is ways to spice this up. I want to make it more than the baddies line up over here and the goodies line up over there, and then they must fight. I'm looking for things the goblins will be doing. I'm looking for clever ideas the townsfolk will be putting forward. I'm looking for a couple of things the PCs can do to prepare for this, like perhaps something they could raid for supplies. I'm looking at making the bard in the group do some talking to try and convince locals to help with the defense, but other than diplomacy checks I'm not sure what to do on that yet.
The goblin pencent for songs means their army is most certainly going to use a war song or war chant of some sort. I'm thinking perhaps the goblins will surround the village and then send forth some of their 'heroes' to put on a small display, like whirling some blades around or other such posturing. This display would be a distraction while they send some canoes around the coast to try and slip into town.