The Giant was a large creature that inhabited Cloudland before the Three-Headed Dragon settled there. After Dahlia stole the Chest of Gold, it is believed that she brought it to the Giant to guard. The Giant began to carry the Chest with it wherever it went in Cloudland.
Eventually, Graham found his way to Cloudland. The Giant sought him out, but Graham hid until the Giant gave up and fell asleep. Graham took the Chest of Gold from the slumbering Giant. It is unknown what became of the monster afterwards.