Between the hammer and the anvil.

Great map! At first, I was stumbling around, taking a long time to get going, and eventually, after defeating the demons and reaching the surface, I didn't have the strength to continue because the neutral units were in overwhelming numbers due to the long playtime. On the second try, I finished in 171 days, playing as a Warrior with the "Shaman" emblem. BUT! Somehow, I destroyed both demon castles without fighting them; their armies had become incredibly large by that time. They just wandered around aimlessly until the end of the game. I tried to develop Dark Magic, but is it scripted? Only after the demon castle did I get the Berserker, and that was it. Not very interesting. And I still don't understand - what is the final boss? At the end, I only defeated the Gnome; is that the boss?