When the door opened and she appeared, Louis let out a breath and brightened visibly. It was fantastic to finally see her again. "Hello Bellatrix," he said smiling. "Well, I was in the neighborhood, you see..." he trailed off and laughed a little, knowing at this relatively late hour, it wasn't likely he was just idly happening by.
"I wanted to see you. And I was wondering if you'd be up for accompanying me on a little late-night walk?" he gave her an innocent look.