(Luna's POV)

"That's it, Clara!" I say happily as Clara Padfoot produces the patronus of a wild Stallion.
"Just keep concentrating on your happiest memory. The patronus will only stay as long as you focus on the memory."

All around me, muggleborns, halfbloods, and pureblood alike, practice their patronus charms. In these dark times, I'm especially proud of them for conjuring fully-corporeal patronuses.

"Fantastic, Samantha!" I say as she produces a St. Bernard patronus.

"Luna, look at me!" Lydia Flint exclaims as she conjures a European hare.
"I did it! I did it!"

"That's amazing!" I exclaim as I skip around the room.

"C'mon," Ginny says to Felix Hugo, a small Hufflepuff who's a bit shy, but very upbeat.
"Just clear your mind, Felix, and focus."

"I can do it. I can do it," he tells himself.
"Expecto Patronum!"

All of a sudden, a lynx patronus shines from his wand.

"I—I did it! I knew it would happen!"

"Excellent job," Ginny tells him.

Suddenly I hear sniffling over in the corner and I find Artemis Jones, a first-year in Ravenclaw, crying.

"Artemis, are you alright?" I ask her gently.

She shakes her head in dismay.

"I—I can't do it!" she sniffles.
"My happiest memory involves my mum, but she's been sick with dragonpox and I'm scared she's going to die."

I sit down beside her.

"I can only imagine how painful that must be," I tell her."I'm so sorry."

She nods and sniffles as she gives me a soft hug.

"I feel so stupid," she growls."I'm in the smart house. I should know how to get past my emotions."

"Ravenclaw's not just about intelligence," I point out.
"It's about having a willingness to learn. Even I still have trouble with some things."

"Really?"

I nod.

"You want to know something?" I ask her.

She nods rapidly.

"Things will get better in time. I can only imagine how worrisome it can be, but try to take life at your own pace. Also, the secret to a patronus isn't focusing on the memory. It's focusing on how that memory made you feel. Does that help?"

Artemis thinks this over a bit and nods.

"Just breathe and take things at a steady pace, dear. And I'm here for you," I remind her as I stand back up.

"Alright, everyone!" I announce.
"I think that's enough for today."

"Oh come on! Can't we see yours please?" Clara begs.

"Yeah, you haven't shown us yours," Felix tells me.

"What about Ginny?" I ask.

"She showed hers last week and Neville said he couldn't do it, remember?"

"Speaking of, Ginny," I wonder to her.
"Where IS Neville?"

She shrugs.

"He said something about going to get the trio. I'll go check outside for them."

Ginny leaves and I'm left with the class when I feel a tug on my robe.

"Can't we see yours, Miss Luna?" Samantha urges me sweetly.
"Oh pretty please?"

Everyone starts to beg. I guess I don't have a problem with producing a patronus. And seeing Ginny's patronus last week made them so happy. Plus Rolf is here and he might want to see it as well. I shrug.

"Why not?"

They cheer with delight and they clear the way for me. I close my eyes and focus on my happiest memory, especially the way it made me feel.

"Expecto Patronum!" I recite as a small wisp transforms into a medium-sized European hare.

The class oohs and ahhs as my patronus hops about the room, nuzzling against some of the students' legs which makes them giggle.

"That's amazing!" squeals Lydia."We have the same patronus!"

"We do indeed," I remark with a smile as the hare fades away.

All of a sudden, I see a painting open and in walks Neville.

"Guess what?" he announces."I have a surprise for everyone."

He stands aside to reveal Harry, Ron, and Hermione.

"Hello, everyone," Ron greets us hesitantly.

Everyone starts clapping and cheering. Some of the new recruits look a bit confused.

"Is that Harry Potter?" Lydia asks.

"Err, yeah, I am," Harry says hesitantly as the three of them step out of the portrait.

Everyone begins to crowd around the three of them and hug them. I see Neville lean down to Nigel, a third year Gryffindor.

"Get the word out to Remus and the others that Harry's back," he orders quietly.

Nigel nods and goes over to a radio.

"Okay, okay," Neville says."Don't start killing him before You-Know-Who does."

"DA Headquarters. Do you read me?" Nigel announces."We have a new weather report. Lightning has struck. I repeat, lightning has struck."

"Anyway, what's up, Harry?" Neville asks.

There's a moment of silence as we all stare at Harry, waiting to know what to do next.

"Okay," he says finally."There's something we need to find. Something hidden here in the castle. And it may help us defeat You-Know-Who."

"Right," Neville says."What is it?"

"We don't know."

There's a moment of silence.

"Where is it?" Dean Thomas, a tall seventh year Gryffindor with dark skin, asks.

"We don't know that either. I realize that's not much to go on."

"That's nothin' to go on," Seamus Finnegan, an Irish boy in Harry's year and house says.

"I think it has something to do with Ravenclaw," Harry continues."It would be….something small and easily concealed. Anyone have any ideas?"

Something small and easily concealed, I think.

Maybe it could be that.

"Well," I pipe up."There's Rowena Ravenclaw's lost diadem."

"Bloody hell. What is that?" I hear Ron murmur.

"The Lost Diadem of Ravenclaw? Hasn't anyone ever heard of it? It's quite famous."

"Yes, but Luna," Cho Chang pipes up softly, turning to me."It's lost. For centuries now. There isn't a person alive today who's seen it."

"Excuse me. Can someone tell me what a bloody diadem is?" Ron asks.

"It's a sort of crown," Cho continues."You know, like a tiara."

All of a sudden, we hear rumbling and the door opens to reveal Ginny. As soon as she meets Harry's eyes, she stops and stares.

"Harry," she gasps.

Ron gives her a little wave.

"Hi there," Harry says stiffly.

Ginny and Harry simply stare for a while. I see it in her eyes. It's like how Rolf stares at me.

"Almost six weeks since I've seen her and now it's like freaking first year," Ron complains under his breath.

"I'm only her brother."

"There're nine Weasleys," Seamus says."Only one Harry."

"Shut up, Seamus."

"Right," Harry nods."What now?"

"We need to confront Snape," Dean says."He's been making this year hell for us. So have the Carrows."

"But where is he?"

"We don't know

"I believe, I can help with that," a voice says as the door opens again.

We all turn to find someone who I both would and wouldn't expect to help with a student rebellion. They gesture to the door.

"Right this way, Mr. Potter. The headmaster should be in the Great Hall," says Professor McGonagall calmly.