You hear a loud crash as you enter the room, and pause slightly from the noise. The Arkham Knight appears in your view, and that mask tilts in your direction upon realising you're standing in the doorway. He sharply motions you in, and you can feel the tension rolling off of him.

"Sit," he demands, the mechanical voice firm. "I want to talk to you."

As you shuffle in, you notice some objects on the desk had been thrown to the ground, papers scattered. He must be in a bad mood.