If you're trying to complete Priory of the Nine, The Path of the Righteous is one of the quests that you'll need to wrap up first. It's the quest that'll lead you to the Mace of the Crusader, meaning ...

It's best to approach the Marshland Homestead from the south. There's an easy infiltration path on that side of the camp. Before getting too close, use your bow to take out the guard posted on the ...