Disclaimer: I do not own Harry Potter or Percy Jackson.

Yeah, I know, I haven't updated. He he. Sorry!

READ: Sirius WILL live in this fanfic, because I had a break-down when he died in the books. I'm trying to figure out if Fred will die too.

READ AGAIN: So, I don't want this to be very cliche, so I'm deciding on Jackson's godly parent now. I'm thinking Gaea, Eris, son of the Big Three who fought for Gaea/Kronos, Nyx, or someone else evil. Help me decide, please!

Enjoy!

PERCY'S POV

The next day went pretty good. I was hoping and praying to all the gods I knew (minus some annoying ones, like Zeus and Ares) that we'd have a peaceful day. Naturally, that couldn't happen.

That night, at dinner, the doors burst open. I automatically glanced to make sure all the demigods were in the Great Hall before turning my attention on the door. (Why does this seem to happen every other morning?) Jason Grace, son of Jupiter was there. He looked tired, like he'd been fighting all day, and he was limping.

"Nico, Percy...We need your help. Monsters are attacking."

"Why do you need our help?" I asked, standing up.

He looked at me. "Because, Percy, we can't kill them."

I cursed. "This isn't good."

Jason looked over my shoulder. "Centurian Malfoy and Neville, what are you doing here?"

The Great Hall's muttering increased. Every single day they get more suspicious, it seems. "They go here," I told the son of Jupiter, silently willing him to not ask questions.

"Any more here?" he asked.

I did a head count. "Nico, Leo, Luna, Neville, Malfoy, and Jackson will come. Status report?" I mentally applauded myself for sounding official. "Oh, and Ron, you want to know more about us? You can come."

The redhead grinned. "Cool!"

"Just don't die," I added. Ron's grin faded.

"Can we come?" Harry asked, standing up.

"No." It was Jason who spoke first.

"Why not?!"

I ignored him. "Report?" I asked Jason, a bit more forcefully.

He took a breath. "No deaths yet, many casualties. We're trying to use the nectar and the unicorns to heal—"

Hagrid stood up. "Your using unicorns to heal?"

Jason glanced at him, then continued. "—but now the monsters are trying to kill the unicorns. Also, the water seems to be going against us, we don't know why."

"We do," Nico told him, before muttering something unflattering about nymphs.

"Good. Maybe we can stop it. Anyway, that's partly why we need you, Percy. Wait, who's Jackson?"

Said boy sighed. "It's complicated."

"Oh...okay. Anyways, we need to go. Now."

-POTTERMORE ROCKS-HOW DO YOU DO A LINE?-

A few minutes, a trip into the forest, and a friendly hellhound later, we were standing on a hill behind the Roman camp. All over the camp, Romans were fighting dogs that were as large as hellhounds. They had white glowing eyes and black fur that was speckled with what looked like shimmering white dots.

"Nyx," I said.

"Excuse me?"

"That's who is causing this. I bet you these are her minions. She's going against us."

We filled him in as quickly as we could. "Great," he said. "We need a plan." He looked around hopefully.

"Okay. Let's mix some ideas," I said. "So far, nothing can kill them. Nyx, one of the most powerful goddesses, has summoned them to attack us. We can do that." I paused and looked around. "We can't, can we?"

Luna snapped her fingers. "Wait a minute," she said. "I have an idea. What fights the night?" She looked at all of us. "The light. We need Apollo."

"Okay, um...Neville and Malfoy, you go IM Apollo and see if he can help us. Do anything you can. Anything else?" Jason asked us.

"Yes. We fight fire with fire."

Five minutes later, Malfoy was informing his half-sister of how the Hunters of Artemis stood for moonlight, so technically it wasn't fighting fire with fire at all. More like dark dark with light dark.

I didn't understand a word of it. Luna apparently did, or just grew so annoyed whipped out her dagger to shut Malfoy up. At this, Ron leapt backwards, paling slightly, while the Hunters of Artemis just smirked.

Thalia suddenly stepped forward from behind her hunters. "Hi, Percy, Nico," she said. "I'm not even going to ask who the rest of you are."

"Good," I told her, as she just grinned and turned back to her Hunters and started briefing them.

"They pray for my help,

I send them a lot of help,

They thank me a lot," a voice came from beside us. Yep, the sun god himself, Apollo. I didn't want to be offensive, but we were getting close to duct-taping his mouth shut. At least, the Hunters of Artemis were. I mean, the haikus were getting worse every time.

"Shut up!" Another voice came from beside us. It was Lady Artemis, who had grudgingly agreed to help us fight Nyx. I wasn't sure this plan would work, but hey, it was made by a daughter of Athena!

Speaking of daughters of Athena...Annabeth was going to kill me.

Nico must of noticed me start to freak out about Annabeth. (After all, she probably thought Hera/Juno had kidnapped me again and would probably drop-kick me and probably...I'm getting ahead of myself.) "You okay?" he asked me.

I nodded. "Annabeth," I told him.

He grinned evily. "You are so going to get it."

"I know."

"Guys, you ready?" Jason asked.

"Sure," I said sarcastically.

"Yep," (Nico)

"Definetly." (Malfoy)

"Heck no!" (Jackson)

"We're all going to die!" (Nevile)

"We can do this, guys!" (Luna)

"At arms, girls!" (Thalia)

"Totally, man!" (Leo)

"Kool-Aid!" (Who...?)

What the...? We turned to see a kool-aid stained Dakota grinning and holding a knife. I faintly was reminded of a horror movie I had once watched with Nico.

"Why are you here?" I asked.

"'Cause I'm a Roman..?"

"No, why are you here...up here, with us?"

"Oh," he said. "Reyna wanted me to tell you we're organizing a retreat if we don't get help."

"Well, we have help now. Dakota go tell Reyna we have lord Apollo and lady Diana and her followers with us," Jason interupted.

Dakota nodded once, saluted, and ran downhill yelling "KOOL-AID!"

Thailia watched his figure fade into the battleground, wincing as a demigod fell to the hands of Nyx's minions. "I don't get that kid," she informed everyone.

"Neither do I," Luna told her, "But we have to fight them. All we need to do is hold them off until morning comes. Hopefully, they can't fight in daylight."

"And if they can?" I asked.

She looked at me, complteley serious. I couldn't see the happy-go-lucky girl who talked about Nargles and heliopaths. "Then we're all dead."

"That's...not good," I told her lamely.

She rolled her eyes and turned to the large group of demigods and hunters (and a god and goddess). "Okay, we only have one shot of this. We may all die, but we've faced worse them this. This is one battle. Now go out there in fight!"

We charged down the hill. Time to see if celestial bronze works on these things.

Five minutes later, I had decided that Riptide officially didn't work on Nyx's hell-hound-like minions. I sliced at them, but it just richoted off their fur.

The weird thing was, when I got close to them and looked at their fur, it seemed like I was staring into space, with all the stars and mini planets and stuff. It created a weird hypnotizing effect.

I zoned out just as the hell-hound-wannabe sliced at me. Thankfully, Nico pushed me to the ground just in time. He stood up and brushed himself off. "That's the second time I've had to save you," he told me.

"No it's not."

"So?"

"Good point," I told him.

We ran back at the beasts. We fought for hours. Occasionally, I'd spot demigods or hunters I knew. We rotated, so everyone could have a break. I could sometimes see Dakota or Reyna next to me. I didn't see any Greek demigods, so we had to make do with a lesser force. Bloody Romans and their pride problems.

Apollo was a great help, instantly vaporizing Nyx's minions (for now, I'm going to call them beasts, because it's boring calling them 'Nyx's minions') just by lighting up (literally) every few minutes.

I saw Malfoy and Luna stabbing away next to Artemis as she shot arrows into their muzzles. Whenever a beast died, it exploded into what looked like black powder and...sparkles? I was tempted to laugh when Nico got an eyeful of them and stumbled around like a blind man looking for a candy bar, or something.

In fact, I did laugh, so Thalia had to push me out of the may when a beast (Okay, 'beast' is getting boring too. I mean, who named these things? Oh yeah, me.) snapped at me, nearly taking of my head. Whoops.

I was distracted from routine of slicing, dodging and rolling when cheers or triumph arose from around me. I whipped my head around and saw the rising sun. The second the first rays broke over the Roman camp, all the monsters immediately disappeared in a beautiful array of sparkles and glitter.

I grinned in triumph and whistled for Mrs. O'Leary. Now, we can go back to the school of magic after fighting the evil dogs that explode into sparkles. Ah, the joys of being a demigod. (Not.)

-(I was going to stop here, but I'm nice.)

We assembled outside the Great Hall, minus Jason. Honestly, I would've rather stayed at the Roman camp for a while. Hogwarts was totally great, but I missed sword-fighting. And I was bummed I couldn't see Annabeth.

Gods, she would so kill me. I hadn't even told her 'bye'.

I was interupted from my decidedly not romantic thoughts when Leo opened the doors. "Hello, people of Hogwarts!" he yelled, grinning like a maniac again and startling a bunch the people eating breakfast so much that they spilled orange juice over their friends.

I got a huge vibe of deja-vu as the Great Hall doors banged against the walls and we headed to our various tables.

"You know, we should find a side door or something," Nico told me conversationally as he passed me going to the Slytherin table.

I mentally agreed as I plopped down at the Golden Trio's table. Ron and Harry raised a hand in greeting, but Hermione's eyes were large and she was staring at all of the demigods all over the Great Hall with wide eyes.

"I have to go see the headmaster," she said and ran off. Well, that cant be good. (A/N: Dumbledore is in his office right now, not at breakfast.)

HERMIONE POV:

I figured it out. Oh Merlin, this is bad. I had spent the night before in the library researching Moonstones when a book caught me eye, called 'Greek Myths'. Naturally, I wanted to read it.

It wasn't until the next morning at breakfast when they all came back (Ron grinning happily) when it hit me. The myths matched up with them exactly. They were demigods. I had to tell the headmaster. They could be dangerous.

As I dashed to Dumbledore's office, I mentally matched them up. Nico could be a son of Hades, Luna and Malfoy daughter/son of Athena, Neville a son of Demeter (It stung me a little he didn't trust us enough to tell us, after we had been friends with him all this time), Percy a son of Poseidon...A few stumped me, but I didn't care.

"Um...Acid pops?" I asked the gargoyle statues. I hadn't given a second thought to the password.

"Er...oh come on! Move, please!" The statues didn't move, but I swear one of them rolled their eyes. "Er, Bertie Bott's Beans!"

I must of listed twenty different candies until I struck gold.

"Cockroach cluster!"

The portraits looked at me in interest as I raced up the stairs, but I ignored them. "Professor Dumbledore!" I yelled, bursting through his door. "Oh sorry, sir..."

He looked up, blue eyes twinkling. "What is it, Miss Granger?"

"I just realized something, sir." I went on to tell him about my realization. Honestly, the demigods scared me. They were powerful. Maybe even more so then Voldemort.

"Very good, Miss Granger." His eyes seemed to twinkle even more. "You figured it out. There is only one thing left to do."

"What, sir?" I asked eagerly.

Dumbledore took out his wand and pointed it at me, right between my eyes. "Obliviate."

Good? Terrible?

Anyway, cheers! I'll make the next chapter better, I promise!

Sorry again.