You can obtain this quest while traversing King’s Peak as part of the story. Along the path you’ll see a pedestal next to a statue near a broken bridge where a large enemy spawns. Help the guys take it out then activate the pedestal to trigger the quest. You’ll need to follow the stares of the statues so head down into the chasm. When you reach the end, you’ll come to a chest in a cave. Open it to receive the Greedy One-Eyed Giant Helm and complete the quest.