where you see that large boar being roasted for food (GROSS)! One of the monster guys has one on him. kill them all just to make sure and get it. also if you blow up the boar you get a peice of heart! Then the key will open that door. Inside there's a REALLY big Boboklin! Use spin attacks to kill his butt. Get up on that boar and smash thru the wall to the ARBITER'S GROUNDS!