The second dugoen in the 2nd village (1st is the character's home), the 2nd part of the dugeon, there is a door cannot open and there is a blue circle thing, maybe put something in it? I tried putting barrels...using blizzard on it, blizzara etc. How do I open that door? the next room i finished but there is a fog (green) blocking my path. If anyone knows how to pass these parts thanks.