"And I'm just an Auror and newly appointed Wizengamot member, but I think you underestimate yourself. You have eyes, and ears, it doesn't take much to form an opinion wouldn't you say?"
He nodded and smiled. "At least with the London Library you never get late fees, I will give it that; plus it provides an excellent cover when I need it. But yes, I see your point," he said, the ghost of a smile still touching his lips. "I have to say, if you're getting late fees for books you've bought it might be time to change where you buy your books." He scratched his chin thoughtfully for several moments. "I could send you an IDM* if you like?"
He lifted his hands in mollifying manner and smiled reassuringly. "You weren't, it's fine lad," he said, feeling his stomach drop pleasantly at the way Zacharias flushed and looked away. "We all take our duties as vanguards against spoiling very seriously."