Right where you start, take a left at the first fork in the path...go into the room and leave it via the opposite side of that room...then...another fork in the path....you should see some Axe Lords standing around

There is a stone wall right near an Axe Sub Weapon item (To your left side of the fork in this path)...destory the wall with the help of the Armor Axe Lords....lure them to that wall and they will break it for ya when they misfire.....