"So," Ron said.
"So," Harry answered.
"You won."
"I usually do."
Ron lapsed back into silence, thinking hard. He really wasn't good at this sort of thing, "You know all these spells. How did you learn them?"
"I have a dangerous enemy."
"You-know-who?"
"Yes. Did you ever ask Neville about the Prophecy?"
Ron nodded. Neville had told he and Hermione about his near-starring roll last year, "You have to be the one who kills him?"
"Yes."
"So, you know a lot of useful spells, right?"
"Yes," Harry said cautiously.
"And you know the Patronis Charm."
"Yes. Is this going somewhere?"
"And nobody else can teach us."
"I don't know about that…"
"So will you come to the DA meeting?"
"Whoa, that was a big jump."
"I know it would mean a lot to Ginny…" Ron said suggestively.
"Damn."
"Is that a yes?"
"When do I show up?"
AN: This is a real turning point for Ron. Not only has he realized Harry is a good guy, he also uses Ginny as bait to get Harry to do what he should. Read on:
PS: There is a time lapse here.
"Today, we're starting Patronis Charms," Hermione began, and continued, as excited whispering began, "And since I couldn't find anything on it in the Library," a few snickers here, "Ron has found us a teacher that knows what he's doing," she turned to face said teacher, "Harry?"
Harry, who had stood unnoticed in the shadows, sighed and stepped forward. The entire room was deathly silent, "Great job, Hermione, maybe you should tell Flitwick how to quiet his classes down."
"What the hell is this?" Zacharius (sp?) Smith asked, "Why is there a Slytherin here?"
"Former Slytherin," Harry corrected.
"Harry is the only student in the school who can do the charm properly. It's either him, or we don't learn it."
"Then I'm leaving," Smith announced and left the room. The whispering had increased and there were a large amount of people who obviously wished to join him.
"If you don't want to learn how just because I'm a former Slytherin, then you are free to go. I only teach people who want to learn."
There were a few distinct mumbles, but no one followed Smith's example.
"Good," Harry walked over to a trunk that had been rattling since the start of "class", "This," he said, "As you probably remember, contains a Boggart. When I open it, it'll turn into a Dementor when it sees me."
He turned to Hermione, "I need you to be ready with the Riddikulus charm."
He turned and looked back to the crowd, "And a volunteer to go first."
Ginny stepped forward, "I volunteer."
"Okay. First think of a happy memory. Then concentrate on that memory and say Expecto Patronum."
"Expecto Patronum, Expecto Patronum," Ginny repeated to himself.
AN: Grrrrrrrrrrrr. I'm experiencing writer's block. Or maybe it's typist block. I can't put it down. I know what happens next, but I thought you would want to read this. HC