Your only source of information was Broken-Shell, so you have no real idea. Though Sparrow would hazard a guess that they are either drawing troops together in Goldenfields to strike at Little River or splitting the gathering between Goldenfields and Great Hearth. The Chosen didn't sound as if he saw a great army gathering at Great Hearth.
That would carry a significant risk of them being charged and someone dying. Also, Great Hearth has a palisade, so the chances of no one of them dying if they are close enough to actually help are pretty slim.
Why do I always get that when I try to write competent people?