"So we might as well start right away," Gaius replied. "I can set my own schedule, and now that I've finished Regulus' shop I have more time. How about I give you a book on the very basic stuff, and when you've read it we can start on the practicum."
He could see that Harry was a bit uptight, and he looked at Regulus. "You know, this might be a good time to tell Harry about the plans we were discussing the other day? The ones for Sirius?"