"Well, I was this world's Primal Heartless... and I was already versed in combat before I became one, so I met virtually no resistance when I went for its Heart...", he explained.

"Xaon, I think he meant about the cave.", Dawn said.

"Ah, that. If I'm not mistaken, we're just experiencing the aftereffects of the Lost Heart, the world becomes weak, and since we're underground, we're seeing it crumble. It'll be better once we reach the surface.", he said, pressing forward.