Originally posted by Honorable_D:

What biome is before Mistlands? Plains. What did the boss use to drop? Something obviously a work in progress.

Well, that work is completed now.

Actually at least for my seed the mist lands is in many places, past the plains, the swamps and some snow. I figured we had to defeat a boss in order to get an item for the "mist" to lift a little but it has been awhile since i have played the game and defeated the bosses, so i wanted to ask people on the forums! <3