Everyone waited in bated silence. No one said a word, only looking at us. "Yes, he can," I said. Harry and I looked at each other before I continued, "I’ve seen it. I know the charm as well, though I have not tried it. Yet." Thinking about it now, I was worried I might not be able to produce a patronus. It was known that dark wizards and witches could not produce one. And Morgana was such a well known Dark Arts user. 