Harold was quietly reading Fullmetal Alchemist when he heard the store door open.
He set the book aside and looked at the customers.
They were a group of redheads. The Weasleys.
"Is there anything you're looking for?" He asked politely.
"Yes," the mom said, "I would like the first year book set."
Harold nodded and went in to grab them. When he came out, he saw the youngest boy looking at his manga curiously.
He set the books down on the counter and looked at the boy. "Yes?"
The boy jumped slightly before pointing at the Fullmetal Alchemist. "What is that?"
"This," Harold picked up the book, "is Fullmetal Alchemist. It is a manga, or a Japanese comic book. It is about two brothers searching to get their bodies back to normal."
"Alchemy?" The boy asked, "Like the dead magic."
Harold shook his head. "Nope. In this book, alchemy is 100% science. Magic does not exist in this universe."
The boy grimaced. "So it's a muggle book then."
Harold shrugged. "Magical or not, it is still a good book. One of my favorites."
Harold looked at the boy and smiled. "I highly recommend it, though it's rated 13 years old and higher."
The mom paid for the books and they left.
Harold slipped a coupon to the nearest joke shop in one of the twins' bag.
They grinned at him.