As Hunter and Jeni take a moment and get a closer look at the soldiers gathered around the mill, a strange pattern of behavior emerges. They're certainly not very effective. There are heaping piles of hay being set fire, but not very close to the walls. There are a few different piles, but it wouldn't be very hard to put them out, scattering their fuel, and the mill is in no real danger. The only real effect they are having is to send a tall pillar of smoke into the sky, and indeed the acolyte stops every so often to admire the smoke and glance back towards the keep, his gaze passing over your skulking forms easily.