A/N This is my first fanfic, so please don't give me any stick. I love the Pertemis pairing so I have given it a go, similar storyline to others but I aim to put a twist in. Also hope to update about once a week. Disclaimer: I don't own PJO or HOO only the storyline.

Chapter 1: Betrayal

Percy's POV

We had just won the war against Kronos and the titans, and everyone was hoping for a bit of peace and quiet where they weren't at risk of being attacked by monsters. I was in the arena, teaching the new demi-gods the basics of sword fighting. My Girlfriend was stood thirty metres away, watching me with a smile. There were ten kids in the little group I had and so I was able to help them out more individually. "Right that's all for today kids, same time tomorrow ok? Well done today." I dismissed them and walked over to Annabeth and gave her a light kiss.

The horn went off for lunch and we headed to the canteen, walking hand in hand. We sat together at the Poseidon table, after giving the offerings to our godly parents. I glanced at Annabeth and noticed that she looked a bit shifty. I asked her what was wrong, but she said that it was nothing so I just left it alone. We finished lunch and walked off together. We kissed before seperating; Annabeth was going to study as normal whereas I was going to the volleyball courts.

Two hours later, I decided to go and walk along the beach and explore. Annabeth and I were going to meet up in an hour and a half for our date. I had a ring in my pocket for the date when I was going to propose to Annabeth. I took the ring out and looked at it, it was silver with an emerald embedded in the centre. I had asked Hephaestus to make it for me a week ago. Engraved inside it read, Together Forever Wise Girl & Seaweed Brain. I smiled just looking at it.

I walked over a few of the sand dunes, breathing in the salty sea air. Suddenly I stopped, sat forty metres away was a girl with blonde hair and Max, a son of Dionysus. I watched them kiss, the girl giggled and then I realised that it was Annabeth. I gasped in pain and shock. I felt as though I had been stabbed through the back. They heard my gasp and turned round. Tears were streaming down my face by now, the ring slipped out of numb fingers. "Percy, it isn't what you think it is."

"Save it Annabeth, obviously you don't love me. Despite everything I have done for you. I was going to propose to you tonight as well." I shouted.

"You were going to propose to me?" she whispered, tears streaming down her face. Max just sat that ignoring everything while looking bored. I turned and ran back to my cabin.

Annabeth's POV

I was going to meet Percy later but while waiting I went to the beach to find Max. I loved Percy but the spark wasn't there for me anymore, I found Max much more interesting and I felt more of a connection with him. We walked along the beachfront, hand in hand. Eventually we just flopped onto the sand, looking out at the sea. Max wrapped his arm around my waist and gently kissed my neck, I giggled and turned towards him. I lent forward and our lips met. I opened my mouth slightly and felt his tongue slowly enter and explore. We started to make out. After a while, we broke for air. We started to chat and then make out again when we heard a gasp. We looked up and saw Percy looking down at us, tears forming in his eyes.

"Percy, it isn't what you think it is." I said, instantly feeling bad. He just stared at me, shouting and then I realised what he had just said. He was going to propose to me. I felt numb. I looked up to see him turn and run off sobbing. Max looked up and just said "Don't worry about him, he didn't deserve you anyway." I just ignored him and sat there shocked. I slowly walked up to where the ring had fallen. It was beautiful with a lovely emerald in the centre. Tears started to roll down my cheeks as I realised what I had done.

Percy's POV

I grabbed my rucksack and put some of my clothes into it along side some personal items and my wash bag. I grabbed my note pad and wrote a quick letter to Chiron. Technically demi-gods shouldn't have mobile phones but I had got one to make calls to my mom without freaking out any friends that she might have round. I often laughed at what I imagined their faces would be like if I IM'ed mom. I got my phone and called mom, asking her and Paul to pick me up at the bottom of the hill.

I folded the letter to Chiron, wrote his name on the front and left my cabin. I walked over to the big house and left the letter on one of the tables outside. I looked back at camp sadly before turning away and going to where my parents were going to be. The road was tucked away, behind the forest. As I rounded the bend I knew something was wrong, the car was empty and no one was standing outside. I started to run.

I ran around to the back of the car, and stopped. Lying in a puddle of their blood were my parents. With gaping holes in their chests. I collapsed, tears streaming down my face. As if my day could get any worse. I screamed out as loud as I could. I picked myself and my rucksack up and started walking away, leaving the bodies and the car.

I made my way to the empire state building and walked into the lobby. "600th floor please."

"Ha, no such thing kiddo." The annoying doorman said.

"Quit fooling, I am the saviour of Olympus. Of course it exists." He just stared at me and slowly passed me the key card. I walked over to the lift, and pressed the button for Olympus. Worst day ever by Simple plan started playing, how ironic.