[Great, now Dio's laughing at him. Hundreds of revenge scenarios run through his mind, ill-advised as they are. But then, curiosity- and a mix of admiration and fear- take over.]

You've eaten them? Are you some kind of vampire? [Oh, wait, he gets it. Bat. Vampire.]

You're interesting. Verrrry interesting. Sure, I could be plenty useful to you! I know a lot of things-- I could lead you out of here! What are you planning to do once we get out...?

[He's never come face-to-face with a relentless killer stronger than himself. Maybe he should play along for now, try to get in this guy's good graces-- hopefully that will put him low on Dio's list of victims, and he can do something to stop him before then.]