Repeated and aggravating knocking would not be necessary, since Devin rose from his book and went to the door. He could hear that whoever was on the other side of it was not alone, though there didn't seem to be two entire people from what he could tell. Too much scratching.

He did appear faintly annoyed by Leo's interruption, and the box got a suspicious glance. "Is there something I can do for you, Leo?"