In Grizzleheim behind the waterfall there is the door to Nidavillar. When I went inside with three boys, we went to the first door. Then when we were in one area with a tree thing and two dark sprites, we defeated the boss, but he reappeared. We had to battle him two more times. I know that you have to defeat the minions first, but after we got out of that tree guy's area, he dragged us in again! Please help!
