Well. Well. If that's how he's going to be. That's really annoying, but there's something else to try.

"Give me something to go off of, or I won't help you next time. Not even to give you information. I don't care if you're a monster, but if I'm going to help you you'd better do the same. ...I'll even tell you something extra about me."

Which wasn't fair, really, but it might be the only way he could get anything at all out of Ankh.