In Chapter 9, I am blocked in (as marked in the expertly-drawn yellow borders above ).  If I try to follow that road to next to the block by the river to the southwest, I get informed I must liberate 3 villages before we leave the valley.  I pasted in from the objectives log what the objectives are:  Help Dariun liberate the villages of Bruka, Ammarkan, and Kroyer's Hold.  I found and liberated Ammarkan and Kroyer's Hold, but cannot locate Bruka anywhere within the yellow area ... also, there's a mysterious treasure in one tile completely surrounded by blocked terrain in the upper left, what's that about?

Anyhow, unless I am missing something, this is literally gamebreaking, as it is impossible to continue the campaign without liberating a third village that does not seem to exist within the accessible area.