Third Person POV:

The next few days breezed by, even during "DADA" with Pink Toad. It seemed that everyone was excited about Harry's classes. As for Harry, he was excited too, mainly to check out the Room of Requirement. The Golden Trio decided they were going to have classes today evening from 8:00 to 9:00.

When it was 7:30 (and Harry had checked his Marauder's Map to see if there was any teacher nearby), Percy led the trio to the blank wall he had been talking about and instructed them on how to use it.

"So you're supposed to walk across this blank wall three times while thinking about what we need, which, in this case, is a place to practice and learn proper DADA." Percy said while pointing to the wall. "Then there's supposed to be a door that appears. We're supposed to walk into it, and, if I'm correct, it will lead us to a room with everything we need. And once you're in this room, if you need anything else, just think about it in your mind and it will appear."

The trio followed his instructions and opened the large, plain door that stood before them. It was a true sight to behold; there were glittering mounds of books organized neatly in the many shiny, polished shelves that surrounded them; there was a large space, about 10 meters by 15 meters, that they could practice on; there was even a grand stadium, where Harry could demonstrate to everyone some spells and people could perform them too; there was a yellow whistle to call the attention of the members in this group; it seemed that the walls were soundproof, ensuring nobody could hear them.

The trio looked in wonder at the Room of Requirement, while Percy and the other exchange students smiled. Hermione, after a few seconds, ran to the nearest bookshelf, carefully opening all of the books. "Look, there are finally real DADA books! Hmm... Secrets of the Darkest Art... Magick Moste Evile..."

Harry and Ron recovered from the shock and ran onto the stadium. Meanwhile, the exchange students ran to the place where Hermione was sitting.

Percy looked troubled. "What did you say, Hermione? What books?"

"Secrets of the Darkest Art and Magick Moste Evile." Hermione showed the books to him.

He flipped through the first book and pulled out a piece of paper.

"Wait a moment."

The piece of paper slowly grew and grew, changing to black as it grew. He opened the "safe" and put the books inside it. "It's good for now." Then he put it back in his pocket as it shrank into a piece of paper.

After a few minutes, everyone came filing in from the door. They stared in amazement at the Room of Requirement.

"Okay, Okay." Shouted Harry a few minutes after. "Since everyone's here now, I guess we should start."

Hermione raised her hand and said, "I think we should choose a leader, a few co-leaders, and also a name for our group."

Harry considered that. "Yeah, that's probably the best plan. Who should be the leader?"

"We should vote."

"Obviously Harry should be the leader." Everyone said, and even Zacharius Smith agreed.

"Should there be co-leaders?" Hermione asked, while looking a at the exchange students.

"I don't think we should choose co-leaders yet. I will see which few people are the best at DADA and have strong leadership and will announce the co-leaders after a few meetings."

Everyone murmured in agreement.

"What should we call this group?"

"The Ministry of Magic are Morons group? MMM for short."

"The Defense Association? DA for short."

"Dumbledore's Army. Also DA for short." Percy said.

Nobody objected.

"Okay, so you guys seem to like the name Dumbledore's Army, so let's get to the point. We should start practicing defensive spells. How about Expelliarmus? It saved my life in June last year. I think we should be put in pairs to practice. Choose your pairs.

After everyone chose their pairs, there was only Neville that was left. Harry said, "Well, I guess you could practice with me then."

He took out his wand and suddenly shouted "Expelliarmus". Neville's wand leaped out of his hands.

While Neville was going to pick up his wand, Harry looked around the room. Percy was with Annabeth and their wands were flying out of their hands every moment and returning back to them.

Meanwhile, Neville picked up his wand and quietly whispered "Expelliarmus". Harry's wand flew out of his hands and landed on the bookshelf. Neville shouted in glee, "I've never done it before!"

Harry wished for a ladder and climbed up it, but suddenly, his wand hopped down from the top of the bookshelf and hit him on the nose. He grabbed it quickly and looked around, seeing Percy smiling. He, at once, knew that it was Percy who did it and, out of quick anger, shot the spell "Impedimenta" toward him.

On instinct, Percy wanted to use his demiprimordialy powers, but he thought of what Hecate had told him before:

Only magic can defend against magic...

Percy shouted "Protego". The spell was blocked.

Harry decided this was an ultimate excuse to make Percy another leader. So, he decided to duel him to show everyone how good he was at magic (even though most had seen his powers) . He shot bolts of multi-colored light at him (Stupefy! Petrificus Totalus! Confringo! Expulso! Obscuro! Aguamenti! Silencio!). Percy immediately knew that Harry wanted to duel him and responded by lifting his wand.

After Percy's shield had disappeared, he conjured another shield (using Protego), but this time nonverbally. Each and every spell was blocked.

While Harry shot spells at him, he thought of "Levicorpus" and also "Expelliarmus". Harry shouted "Protego" to conjure a shield. Percy broke the spell. The effect was immediate. Harry was lifted by his ankle into the air and his wand cast away.

Percy conjured a soft mattress and thought "Liberacorpus". Harry landed on the bed.

Only then did both of them realize that everyone was watching them.

Percy turned away calmly and continued practicing.

Harry was a bit disheveled and got off the bed. He announced, "Percy should be a co-leader or even a leader."

Everyone agreed, and thus, Percy was made another leader. Harry was glad that there was another person who could help him teach.

Zacharius Smith glanced at his watch and said, "It's 9:10 now."

"So, this meeting will be concluded then. We will notify you when it's the next meeting." Harry said as everyone filed out of the Room of Requirement and crept back to their dormitories.

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