so in dungeon hunter im on the part where you get the key and unlock 3 doors to get to the portal but i cant find the third door. i get past the first two spikes then i go out of the building and it dead ends at a treasure chest. ive been running around for 30 minutes now trying to find something i missed before. can someone help me? i can post screen shots if i need to sorry if this is posted in the wrong place its my first post