She looked up at him, confusion in her green eyes. "You're a muggle?" she asked, startled. Nothing wrong with being a muggle, of course. Some of the best people at school were muggle born, after all. But... how did he explain himself without magic? She knew some science thanks to sneaking a look at some of the Muggle Studies textbooks in the Common Room, but she was pretty sure that a small child in a huge suit of armor had to break the statute of secrecy...

And if it didn't... well she was about to be in far worse trouble than when she had been caught dueling in the halls...