Theodore:
You've gained a new power. That means you survived the Ruins of Ye Sagira. No, more than survived. You even fought off Harnak's Wraith.
You know, Harnak was once the ruler of the Giant Kingdom. Even as a wraith, he still holds considerable power. If you were strong enough to defeat him, you could probably handle Harnak Underground Ruins as well. Maybe.
"Harnak Underground Ruins?"