You will not change your mind?
KARL
I shall not.
[Crosses to settee L. and sits.
DEVIL, sits in chair L.
Very good. Now I can tell you in confidence about—look here, you are quite sure you won't change your mind?
KARL
No fear. What is it you want to tell me—tell me everything. I'd like to learn some of the tricks of the trade. I may need them—
DEVIL
Tricks of the trade? This from a man about to marry? I'm shocked.