"Introduction to Muggle Swordsmanship..." After listening to Neville recite the contents, Sirius Black rubbed his chin. "Sounds pretty interesting. I'll buy a copy and have a look when the time comes."
"I'm afraid that might be difficult," Vizet said. "That book is kept in the Restricted Section, and its author is rather special... You probably won't be able to buy it."
"That's not exactly surprising. There are quite a few similar books in Grimmauld Place..." Sirius Black nodded. "Since they're all one-of-a-kind copies, they never circulated outside."
"Besides, this book is called Introduction to Muggle Swordsmanship. The fact that it appeared in Hogwarts at least shows that the author was a wizard... A wizard studying swordsmanship—that's quite fun."
"No, wait! You could even call it heretical. Most wizards don't exactly have a great view of Muggles..."
"Neville, since you can recite its contents..." He turned to look at Neville. "Do you know who wrote it?"
Neville answered Sirius Black's question. "Godric Gryffindor..."
"Hmm?" Sirius Black raised an eyebrow. "Someone with the same name? Or... the Godric Gryffindor you and I both know?"
"The Godric Gryffindor we all know..." Neville nodded and said with certainty, "In other words, the founder of our Gryffindor House."
"Huh?" Fred and George cried out in surprise. "Godric Gryffindor... he really joined a Muggle lord's knight order and learned swordsmanship there?"
Neville nodded very slightly. "If that book wasn't lying... it should have happened."
"Merlin's beard!" Most of the people in the guest room, including Lupin, had extremely vivid expressions.
"It seems... not all that surprising." Lupin was the first to calm down. "The Sword of Gryffindor... you should all know about it, right?"
"That was Godric Gryffindor's sword. That era was rather special. Carrying a sword to disguise himself as a knight, and thus conceal