Jack nodded. It sounded like her rogue pack of pranksters plot was going to work after all. She always knew that she was skilled at pranking for a reason and when the idea had come to her to band together with a few other troublemakers and cause...well, trouble, she had known then that it would be of use.
She said, "I have a few personal things I'll be doing, don't you worry." She nodded. "But we also have to be careful. Because we are here, we are in a really good position to get to the Death Eaters here. We can't compromise that completely." It would stink to have all of the members of Potter's Army expelled...or worse.
Unfortunately, Jack was not as calm, cool, and collected as she was letting on and suddenly Louis was singing. Jack had always tried to subdue her sort of...hands-on personality when it was business, but right now she couldn't. She rounded on Louis. "Louis! Could you be serious just this once!"
She knew that Andrew was going to tell her to calm down, but she was not going to hit the kid or anything, though her expression said otherwise. She had self control, but right now, she was not in the mood for singing.