Immediately backtrack to the plateau, as this enemy will require some breathing room. As you begin to cross, this Stone Gargoyle will take to the sky and land on the bridge to stop you. As you make your way across the crumbling bridge, note the strange figure kneeling amidst the rocks on the right. Leaving the bottom floor of the Irithyll Dungeon behind through the large door, head down the path into the expansive cavern where a corpse holds the Large Soul of a Weary Warrior.