Rolf of course remembered the Headmaster, though he was surprised that the man would be taking time to meet with both he and Luna about anything. But he'd gone with Luna after Lily had come to tell them the man was there.
"The Order of the Phoenix?" Rolf asked, he'd heard the name before, but he was still not entirely sure what Dumbledore would have to talk to them about that could deal with that. "What about the Order, sir?" His curiosity had been peaked.