Gideon was learning a lot in this conversation, as it turned out. Billie read Witch Weekly? She was saving up for a broomstick? And who was this Arnie fellow whose brother was apparently teaching her how to fly? Teaching them how to fly — whoever them was. He'd always given Billie a good deal of freedom. He couldn't have done otherwise, since she had been entirely independent before she'd come to live with him. Now, however, he felt almost negligent in his role as a father. Was this brother that had been teaching her to fly an older child, or an adult? Billie would have known better than to go spending long periods of time with strange men, wouldn't she?

No, of course she wouldn't have. He had been a strange man before they'd figured out he was actually her father. Not a strange man will ill intentions, but still. The fact that she'd been presenting as a boy so long did provide some security, but it wasn't security she'd have much longer if they followed through on the plan for her to attend Hogwarts as a girl. He'd have to have a talk with her about that, either to establish new boundaries or to at least ensure they were on the same page about what constituted reasonable risks when it came to her safety.

This, of course, was not the time or the place. Besides, he didn't really want to admit to Ms. Robins that he was, evidently, failing as a father in even more ways than he'd previously known.

"Hopefully not beater," he said with a mild chuckle. Bludgers went after all the players, of course, but he'd prefer if his daughter didn't go intentionally flying into their way.