'I guess a kid is still a kid, no normal how tough they act on the outside.'
Ainz smiled, but didn't say anything, he wasn't going to tell him that he was looking at the place because he planned to run away from the place, very soon or was trying to understand the geographical area. As far as he was concerned, revealing anything to Bruce would only hinder him, and he might likely report his plan to the main circle in the Kalamas household.
After about ten to fifteen minutes of running, when they had gotten past most of the forest and mountains, and were quite far from the outer circle boundaries, Bruce finally slowed down and began to explain.