Just off the area where the Faithful to Maglubiyet is captive is a corner with three goblins and a rat. Have Wyll there to get a funny conversation, but prep for a fight (and it will pull the jailors in too, and at least one of them will try to run for help).
If you get into the ruined temple the hidden way, you get a Persuasion roll to get Shadowheart to reveal her deity. Not that that was a big secret to start out with, but it gets you more dialog options later.
