I didn't lose any towns or heroes; the only problem was: how do I get to the turquoise one? I figured out how to use the spell (I don't know much about Orcish buildings). There were almost no problems with the purple ones, except when I built a ship - they got nervous, poor things XD. Only one of them attacked (I repelled it), and the second one was already rushing at full speed; I barely managed to get there in time (because I had a sextant and boots of traveling). Logistics are important in this mission: with its help, you can move a little further and see more (especially with scouting). I enjoyed playing as Kujin.
My personal impressions.