AN: If you've ever read both Harry Potter and Percy Jackson and the Olympians, then you have probably noticed that Harry and Percy look the same. So, I made them the same person.

Chapter 1

Back to Hogwarts

Annabeth and Grover were very sad to see me go that fall. They never went to the same school as me and they never would. I wouldn't let them. I left with Sally from Camp Half-Blood. We didn't talk as we drove to the airport. She helped me dig my things out of her trunk and left me there. I couldn't have been happier. Airport security barely glanced at my passport. "Perseus Jackson?" I nodded. Luckily, I had exclusive permission to be in Zeus' domain. I landed in London and met my other "family". We didn't talk until we reached the house. The father of the family spoke first: "Welcome back Harry." I nodded and went to my room, the room of "Harry Potter". I sighed.

I missed my mother. She was a wonderful woman, full of hope and courage. She helped create the Industrial Workers of the World. Hecate didn't even know where I could find Mary Harris Jone's grave. I missed that time period. The three worlds I was immersed in had none of my favorite things. I missed the excitement of newly born Canada and the world's joy of bicycles. I missed everything about my era. I had only been five.

I pushed those thoughts aside. No use on reminiscing about the past. I returned to Hogwarts tomorrow and the Titan war had left me behind on my homework. I was in the middle of my Transfiguration homework when a blinding light shown briefly. I didn't look up. "Hello Apollo."

"Did you know that it's creepy that you can do that?" I suppressed a smirk. "I don't remember giving the ability to tell the future. Half of the time, you freak me out." I finally looked up.

"You're the only who would visit me at this time and this place." I said this as an explanation. Apollo ignored it. I sighed again.

"I just came to tell you that I've convinced your friends to only send letters, and not Iris messages." Apollo frowned at my school work. "You do know you a job to do right?" I glared at him.

"There are only three of the things left now." I spoke coldly, not caring about who I was talking to, and Apollo knew it. "You can feel it can't you?" My face was toward my work again. "The two worlds' I'm involved in, they have to collide soon." There was another brief, bright light, and I was alone again. I kept working on my homework until I fell asleep.

Like all of my demi-god dreams, it was terrifying. It was a glimpse of the future that much I could tell; for there was no other reason Ron and Grover would be fighting back-to-back. Hermione and Annabeth were fighting too, but I was no where to be found. Creatures from their worst nightmares were attacking them. Spiders attacked Annabeth and Ron, demonic letters were attacking Hermione, and fake Cyclops were attacking Grover. They fought hard and eventually, they won. As they were standing over the bodies, Ron said: "I can't believe he deserted us." I awoke in a cold sweat. My clock said it was 5:30 AM and I knew I wouldn't be able to go back to sleep. I got dressed, grabbed my wand and Riptide, and went for a walk.

So I left my friends to fight by themselves. Why? By even considering the absurdity of this future change it in some way? I had lived with this strange form of prophecy most of my life but only recently had it become this pronounced. I suspected the ability had come from being frozen in time and Hecate's spell that allowed me to experience the one hundred some years I missed. Something dangerous was brewing; something old, dark, and powerful. I would need help from everyone to defeat this threat. The futures were so full of potholes; places where defeat would occur and the fate of the world sealed. Yet I couldn't face this new threat until I had defeated Voldemort. That inhuman man was smart, I would be the first to admit it, but he could not keep all of his secrets forever.

I looked up to find myself in an area of Little Whinging I had not seen in a while. It was a playground, ominous looking in this light and covered in dew. This was the place where, three years ago, I had caught my first glimpsed of my supposed godfather, Sirius Black. He was dead now; killed in the fight against Voldemort. He may not have been my real godfather, but he was the only one I had ever considered telling my secret. I never got the chance. Also, it was here that I had first summoned the Knight Bus. The air shimmered beside me but I didn't turn. "Who is the message from Iris?" She giggled. No one talked to her much anymore and she like the attention.

"Annabeth. She won't stop trying and I figured that since it was so dark out…" I smiled briefly.

"Let it through." Annabeth was with her father, I could tell from her room. She looked frazzled, her hair pulled into a hasty bun.

"Percy? Oh, thank the gods I got through." She ran a hand over her hair. "Listen, I was going through the laptop and I kept catching these vague references to an enemy. At first I thought it was King Minos, but now I'm not so sure." I hung on her every word. She had discovered some clue about this new enemy that I needed. "Whatever it is is old. I have no idea what it is, but it's bad Percy. The only name that's used at all is the Ancient." I felt like the universe shivered but Annabeth was still talking. "I can't find a reference t it anywhere!" She expected me to say something and I had to think fast.

"I'm sure everything will be fine Annabeth. You'll figure it out." My flattery seemed to please her and she calmed slightly.

"I'll just write you letters from now on Percy. I just really needed to talk right now." I nodded, glad for the darkness that hid my face. "So…by I guess." The Iris message dispersed. I sat alone in the darkness of my past, wondering about my future.

Ron, Hermione, and the rest of the Weasleys were very, excited to see me. I did my best to act excited too, but that dark force still bugged me. I could feel it everything I moved. On the train, my friends left it alone; they could tell when I didn't want to talk. When we got to the castle I shook off my foreboding feeling. I had a Dark Lord and classes to concentrate on. A month of school went by fairly normally as I tried to keep my high grades from my friends and dreamed of the dark force. One day I awoke from such a dream to find a box at my feet. It was tree in the morning but I quickly picked up the package. It read:

Potter

Gryffindor Tower, Hogwarts

Bed 5

England

I blinked and quickly read the return address, which read:

Mount Olympus

Empire State Building, 600th Floor

Breathing heavily, I grabbed some protective equipment, the box, and ran to the nearest bathroom from the Fat Lady. Shakily, I turned on the lights and opened the box.

Inside the package was a cup. It was beautiful, covered with gold and silver. The cup generated evil and it was almost as if the filigreed badger upon it was staring at me. I pulled it out and set it upon the ground. I took out my dagger. Few people knew about this weapon. The sorceresses had helped me forge it and it was made to destroy these objects. Getting a firm grip, I stabbed the cup. It let out a bloodcurdling scream and a small tempest erupted. I was flung backward as the thing died. When it was over, I retrieved my dagger and destroyed the evidence. Then, I sat on the floor of the bathroom, listening to the echoes of death.

AN: I have a huge plan for this and will explain more about Harry's/Percy's past eventually. Yes, I do have ships for this and you'll just have to wait for a while. ;D Please R&R.