Send Kate to tell Fellshore "Good job, pleases stop with the human sacrifice right now." But in different words. also have them use 1-2 power collecting resources and stockpiling them. We rile up the town into an anti-witch fervor, slightly corrupting the mayor to assist us. Also, we corrupted the priest. If it didn't work, we ate him.
+1 but if we couldn't convert him. We wouldn't just ate him, we would have destroyed somehow his vocal cords and we just admired how he tries to call for help while hanged by some kind of hook on top of the temple while we did our "redecoration" in the temple, with runes carved in his flesh he slowly was drained of every drop of blood that was collected and drunk by us. Later, after his silent dispair vanishing, we ate him. Power not being used does what? nothing? if we use all the power they will still rest? if yes, then shall some continue to reinforce the temple, worship us and get some resources, make our smokewraiths continue the scouting around Nuulyd and other villagesHow about the other prisoners?
Say the guard that we could "Convert more criminals in a the new way of the church of redeeming and purifying the mans hearts"Corrupt even more the bored criminal, if he has career he should have a bit more of experience, and a bit less of scrupulous, see if he is willing to worship us even more, tempt him with power, promise that he will be never bored again, make him a wordbearer, and then make him say about having seen the wrong and stupidity of his oldways, and how things are gonna change from now on in the supervision of the church (or make him a smokewraith?)
(I am trying to repeat over the peoples minds the words "oldway" and "newway" maybe that could give us an kind of psychological help making our words enter easier in the peoples minds later)
Get the Brutewolves in the surrounding forests to breeding more, to see if it is possible. Have them attack travelers and after feasting on them steal their valuables. Their Den is the Temple in the Forest. Should they have too much food they are to bring it to the Temple - alive. Barely. So their pups learn how to kill.
+1 holyfuckyes, our trap is a small temple now. (But for the tunnels and stuff you said it is better wait for the town to be ours,we could repeat the process of the underground temple we did in fellshore and it could really connect the prison to the temple as smaller "forts" inside the city so in case the enemies invade our city we could succeed in guerrilla while trapped at our walls, hmmm you gave me a long-term idea hehehe)