Could someone help me understand 'Had you?' in the following lines from Michael and Mary (1930) written by A. A. Milne?
Michael. Oh, well, I've read enough to dine out on. (He throws it on to the sofa. She picks it up and looks at the back.)
Mary. Never heard of him.
Michael. Yes, he would pretend to like that, but really he wouldn't.
Mary. Had you?
Michael. Certainly. I'm a well-read man.
Mary. Do you think he's more famous than you are?
Michael (hiding a smile). Much.