Summary:

Our Heroes of Olympus are minding their own business after the 2nd Titan war when Chiron issues a new quest. The Seven, Thalia, Nico, and Grover are sent to Hogwarts under cover as exchange students from America. Their quest is to save Harry Potter and co from Voldemort. Set after Blood of Olympus and during Harry's 5th year.

Chapter 1-Say What?

Percy POV

Finally, the war with Gaea was over, and we were all on our way back home on the Argo II. All of us except for Leo that is. Everyone missed him, including me even though I barely knew him. He'd sacrificed himself for us. Even though it was in the prophecy, It didn't occur to me until Leo was gone that someone would actually die. I was shaken out of my thoughts when there was a knock at my door. I stood up and opened it to find my wonderful girlfriend waiting impatiently and excitedly. Her eyes were sparkling and bright. I raised an eyebrow. She gave me a quick hug,

"You need to come outside," She said,"You won't believe this." Annabeth grabbed my hand and dragged me to the deck of the Argo II where the rest of the seven were surrounding something, all talking at once. I pushed through everyone and couldn't believe my eyes.

There in all of his dorky glory was Leo smiling like a maniac, (which he was)

"The supreme, commander awesomeness has arrived!" He changed his nick-name! I gave him a hug after Jason and Piper.

"So great you're not dead Valdez!" I said. The demigods all started talking at once.

"Where have you been! We missed you."

"Did you actually die?"

"So glad you're ok"

Leo laughed and raised his hands like he was a pop star waiving to his fans.

"I did actually die," he said. Everyone frowned

"But then how…" Piper said,"We had the vial" Leo scratched the back of his neck.

"About that I sort of…kinda…switched the vials a while ago." Piper smiled and replied

"The important thing is that you're here…but I'm still gonna kick your dorky behind for that!" He gulped. Piper can be scary if she really wants to. Annabeth pushed through everyone. Now fuming with anger.

"We all thought you were dead!" She said through clenched teeth.

"I was…" He said. Uh oh. I've known Annabeth long enough to know not to play games with her emotions. Said person's face got fiery red and she punched Leo in the face.

"Geez Owl face" He said holding his nose."I thought you'd be glad to see me"

"I am." She said still visibly mad. I gave my girlfriend a side hug,

"She has strange ways of showing affection" I said simply,"You leave for two weeks she punches you, you disappear for months she judo flips you. I speak from experience." Annabeth lightly punched my shoulder.

"Both those times I thought you were dead!" She said no longer angry. I shrugged

"Point taken." She was about to say something when I noticed that there was someone else behind Leo. I got a better look and realized it was Calypso. Uh Oh. The same Calypso that I left on the island a few years back. the same one who was supposed to be off her island because of my request to the gods a few years ago. I walked up to her.

"Look Calypso.." I said kindly. She stopped me

"It's fine," She said,"I know you love Annabeth, and I love Leo so it's fine. Plus…even though I know you wished for me to get off of that island and the gods didn't do it, Leo got me out and so i'm good." I let out a breath

"Oh good!" I said sighing with wide eyes. Annabeth laughed at my facial expression, and Calypso joined in.

"We've never formally met…"Calypso said turning to Annabeth "Im Calypso"

Annabeth smiled,

'Annabeth"

Calypso was about to say something when I heard Leo practically scream.

"OH MY GODS I CAN SEE CAMP HALF BLOOD. WE"RE ALMOST ON GLOROUS LAND" He shrieked and ran around the deck muttering to himself.

"Glorious?" I asked. Leo, being very mature stuck his tongue out at me, and then continued muttering words like, land, earth and for some reason dirt face. I ran to the railing and faintly saw Long Island in front of us near the sun set. I gave Annabeth a quick kiss and said

"Look at that we're almost home." She smiled and gave me a hug.

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When we were landing, I saw all of the campers run toward us with smiles on their faces. We ran off of the ship and were surrounded by our family. We were all really happy to be there, but Leo went all out, screaming and kissing the ground. After being bombarded with questions, Chiron came forward,

"Welcome back!" He said. Annabeth sprinted up to him through the crowds of people and gave him a hug. Chiron was like her father to her. He had practically raised Annabeth. After answering a few questions from campers Chiron saw how tired we were and sent us off to our cabins.

Sadly we'd missed dinner, but Chiron told us to meet him at the big house in 1 Hour. We asked why, but he said not to worry about it and to get some rest and change. After saying good bye to Annabeth I ran to my cabin, and opened the door. It smelled just like how I remembered, Montauk. I smiled and sat on my bed. It began to dawn on me how much I stunk so I took a shower and changed into a new pair of jeans and my Camp Half Blood shirt. I then ran to the Athena cabin and saw Annabeth sitting on her bunk with blueprints spread around her and Dealdus's laptop in front of her. Wait a minute… Dealdus's Laptop?

"Where'd you get the laptop didn't you loose it?" I asked, She grinned

" A few minutes ago Athena showed up and she said that she had gotten the gods to get it back for me after I lost it." She was practically bouncing with joy. I smiled and kissed her,

"That's great!" She nodded,

"and everything I had previously is still on here!" I looked at my watch,

"I know you love your computer and all, but it's been an hour so you're gonna have to part with it for a few minutes. I know its hard." I said grinning. She punched my shoulder,

"haha you're hilarious"

We ran to the big house to find Chiron waiting for us. Along with him was the seven Thalia, Nico and Grover. I gave Grover a bro-hug.

"Grover!" I said. "i haven't seen you in forever man!"

"Hey Percy" He said "Good to see you."

"I suppose your cousin is dead meat." Nico and Thalia said simultaneously before glaring at each other.

"Thalia Nico!" I ran to them and gave each a hug. I then looked at Chiron,

"Why is everyone here?" I asked.

"I needed to talk to you but first let's eat. We followed him around a corner and saw that food had been prepared for all of us. We sat down. I knew something was up. Chiron obviously wanted us to do something.

"So" Chiron said as we began eating,"I have…well. how do I explain this…do you guys know about witches and wizards?" He asked. We nodded."They're real" Thalia spit water out of her mouth.

"you mean those minor kids of Hecate who live in England or something." She said. He nodded

"Turns out there's one 'evil' wizard who has been cheating death." Chiron continued. Nico spoke up

"I've heard of him. Hades rants on and on about how much paperwork he causes."

"well over the last few years this wizard has been trying to kill a young wizard named Harry Potter." I cracked a grin at the name. Nico saw me,

"If you think the name Harry Potter's funny wait till you hear the others." he said.

"Chiron's not telling you for a reason. I had a laughing fit and didn't stop for about an hour." I raised an eyebrow.

Chiron continued,

"I'm going to issue you another quest. (cue groan). Don't worry all you have to do is protect Harry for a while until we can deal with the wizard-" I interrupted,

"Why do you need all of us?" I asked,"It's just a minor child of hecate." Chiron grimaced

"He's more powerful than you think. Anyway you will be attending a wizard school named…well…don't freak out…Hogwarts." We all fell out of our seats laughing except for Nico who was just sniggering. I wiped the tears from my face,

'You mean to say…haha…that…haha…the famous name of a famous school…haha…was named Hogwarts. That totally sounds like…haha… a skin disease." The laughter grew louder. Finally after a few minutes we all calmed down

"As I was saying," Chiron said slightly annoyed,"You must protect Harry until the gods can deal with Vold-the wizard."

"Just out of curiosity" frank said,"What's the wizards name?"

"Voldemort" All hell broke loose. Everyone was on the floor turning red with laughter

"gods help those wizards." Chiron muttered.

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After laughing like no tomorrow Chiron told us all to pack and meet up at Thalia's tree in 30 minutes. He gave us giant suitcases that I probably could of fit in. I lugged the suitcase to my cabin, and began to pack. I only filled up maybe half of the suitcase, but hey I travel light.

I went up to Thalia's tree and saw that I was the first one, so I pulled out my phone (Leo had made us monster proof ones) and played angry birds for a while. (Don't judge) until everyone came.

"Alright" Chiron said,"you will be staying at a house owned by a man named Sirius Black, who is Harry's godfather, and no I do not mean god literally. The gods have agreed to shadow travel you there, but first you need to know your cover. You are exchange students from a wizard school called Half Blood Creek. I made then name up myself. " I raised an eyebrow,

"Don't we need wands or something" I asked. Chiron nodded,

"I have them here," He handed us each a box. I pulled mine out. It was sea-green and about 9 inches. The box said 'tail of a pegasus'. I guess thats what's in it.

Just then my father Poseidon and Hades appeared out of thin air.

"Are you ready to leave?" Zeus asked. We nodded,

"Good" My Father said,"You will give your identity to the people at Mr. Black's house, but at Hogwarts, don't you dare laugh at the name, it's optional for you to give your true identity after you gain trust of people,… so after maybe a month or two. Unless they began to suspect you're on Voldemort's, side, yet again stop laughing. If so, give your identities." We nodded.

"Be safe" Poseidon said, and he and Zeus waved their hands. My father nodded at me as Chiron, my father, my uncle, and my home disappeared. I felt like I was falling, the wind howled, and my stomach flew into my head.

Once the air and Thalia stopped screaming(Her fear of heights remember) we all appeared in front of a house labeled 12., with our luggage by our side. I wasn't sure what street we were on but it didn't matter. We walked to the door, and finally Jason got up the courage to knock. A man opened the door, he had bright orange hair.

"Molly" He said to someone behind him,"The students are here"

TADA all done. I hope you liked it please review! Also please tell me what you wouldn't and would want to see on this story! Thanks!