It's good to leave the building sometimes. Understatement. So no one had noticed yet that he was gone, not enough to have made a fuss about it or gone looking. Good.
Lotte. He recognized the name, and his ears stood up. Clearly he understood what she was saying even if he couldn't talk. He'd spoken to her on the boards, but never seen her in person. The last he'd heard she was with the man who was meant to be the Phantom of the Opera. He brushed that thought aside as quickly as it came, however. The doings of the people in Bellum were no longer his concern.
He got to his feet, looking up at her. Well, she'd definitely recognized him, so there was no reason to stay and play innocent. He hovered, however, unsure. He had no way to ask her not to tell anyone she'd seen him. All he could do is hope that she wouldn't.