Chapter 1: WHY?!

Summary: Clary and the others go to Pandemonuim. Clary sees Jace kissing another girl and runs into a monster. Guess who saves her?!

An: I know there are other stories like this but just bare with me. Also I haven't read the HoO so there won't be any characters from there. Simon is a shadowhunter, Clary is a better fighter than Jace and has a bit of an attitude (so OOC) Clary has sea green eyes not emerald green eyes, Simon and Clary are parabatai, and ships are Clace (but not for very long), Malec, Sizzy, Percabeth, and GoverxJuniper (I think that is the name of Grover's girlfriend , who is a nymph, it's not please tell me so I can fix it, thanks). Sorry for any spelling mistakes. Also the reason why it is rated M is because I don't know what direction this story will go. In this story Percy is one year older than Clary (Percy-17, Clary-16). Clary knows about the Greek myths and Gods, can use every weapon (bow and arrows, swords, knives/daggers, whips, shields, and the rest), and she knows she can speak Ancient Greek but none of her family or friends know.

Disclaimer: PJO characters belong to Rock Roidan and TMI characters belong Classandra Clare.

Clary's POV

I was in Izzy's room getting ready to go to the club Pandemonium. Izzy did my hair and makeup, I swear she and Magnus are gods when it comes to clothes and makeup. When Izzy was done I was wearing a semi-tight black dress that goes to mid thigh and sleeveless, a black leather jacket, and matching 4 inch black boots that stops just below my knees. For my makeup a have blood red lip stick and the smokey eye look. My hair is in ringlets going down my back. I put on my trident necklace. I put a glamour on my bag with my weapons, steele, sketch pad, and pencils, and an extra pair of clothes with shoes too, so that only I can see it.

When we go down, we the boys (Jace, Alec, Magnus, and Simon) were waiting for us. Alec says exasperated, "Finally you two were taking hours!"

Izzy coolly replied by saying, "Beuaty takes time, brother."

"It was worth the wait." Jace cuts in while winking at me and then I blushed. Simon just nods in agreement to Jace's statement,

"Well lets go then!" Magnus says and before anyone could say anything else Magnus created a portal that we all went through.

We landed inside Pandemonium and ungalmored ourselves. Jace took my hand and lead me to the dance floor. After a few songs I told Jace I was getting a drink and that I will be at the bar.

I order a shot of whiskey and downed it in a go. The drink burned going down my throat but I ignored it. After I put the shot glass down, I decided to go look for Jace. When I found him, I immediately wished I stayed at the bar. He was kissing some blonde bimbo.

'I will not cry' I told myself. Instead I tap Jace on the shoulder and he looks at me once he realized it was me he stutters out, "C-C-Clary I-I I-"

I cut him off by asking him how long and he answered a month.

"Who are you?", the bimbo asked me.

I answered, "None of your business." Then I punched both of them in the nose and was satisfied by the crack of their noses breaking. Then I turned around and left the club not bothering to look back.

When I got outside, I made my way to the Institute. I saw a demon in an alley that I have never seen before. I took out my seraph blade and whispered its name 'Raziel' (an: I know in the codex that shadowhunter don't name their seraph baldes Raziel because he doesn't like it, but Clary is the only one who is allowed too and nobody knows). I take out my steele and put a silence, speed, strength, and balance rune. Before I took a step the demon turned around and hissed out "Daughterrrrrrrr of Poseidon." Drawing out the 'r' in daughter.

I didn't respond to that but I atacked the demon it dodged my blade. The demon strikes me and I screamed. I drop my blade in my bag and my necklace falls in the bag. The last thing I see before I black out is a boy with a sword fighting the demon.

Percy's POV

I am taking a walk before I have to go back to camp. When I am about to head back to camp I hear a monster hiss out 'of Poseidon' I uncapped Riptide and got ready to fight but I didn't see the monster then when I passed an alley I heard a scream and saw the monster about to kill someone. I looked at the monster and saw it was a manticore. I got the monster's attention, fought it and killed it.

I looked at the person that the manticore attacked and saw it was a girl that looked around my age. I picked her up and I found a bag by her side and grabbed it assuming it belonged to the girl. Then I started to carry her back to camp to be healed.

At Camp Half-Blood

She passed the borders so she is a demigod. On the way to the infirmary I passed Chiron, Annabeth, and Grover. They asked who the girl is and what happened and I explained everything on the way to the infirmary.

I felt a connection to this girl and I wanted to be here when she wakes up. Everyone tried to get me to leave but I said I will leave when she wakes up. I think Annabeth is getting jealous of this girl.

When Clary wakes up

Clary's POV

Before I open my eyes I know that I do not know where I am and I could tell I wasn't in the outfit I was wearing. I open my eyes to a boy with black hair and the same sea green eyes as me infront of me.

I instantly asked, "Where am I?"

The boy answered calmly, "At the infirmary in Camp Half-Blood. I am Perseus Jackson, but call me Percy."

"Clarissa Fairchild, but call me Clary." I look around then I realized that I don't have my bag. "Where is my bag?"

"I thought that was yours." Percy pulled my bag out from under the bed I was on. "Here you go!" He said happily.

I grabbed my bag and pulled out my clothes and shoes and looked at Percy. "Is there any place to change?"

"There is a bathroom through there." He says after recovering from his shock. As I was getting changed he asked, "Why do you have clothes and a pair of shoes in your bag?"

"Well, I have shoes so I can change out of heels. The clothes are for if the dress that I was wearing got ruined." I answered his question coolly. "Where are the clothes I was wearing?"

"They got ruined so you were right about bringing an extra outfit."

Once I was done changing I went over to the bed I was in earlier. I laughed at what Percy said and replied with, "Yeah, I guess so!"

All of the sudden Percy asks me, "Do you know about the Greek Gods and myths?", Just as three people came in.

Percy along with the three new people looked at me expectantly. "Yes I know about the Gods and myths."

"Well, they are all real." The four people all looked for my reaction.

"I don't believe..." thinking about the last couple of months from the day first saw the shadowhunters at Pandemonium to last night. The more I think about the demons last night I realized it was a manticore, a monster from the Greek mythology. "Wait, I believe you. And half blood as in demigods?"

When I looked at the four people they seem shocked and surprised, they must have been expecting a different reaction.

One of the three people that I don't know speaks, "Well, that was a surprise. And yes Camp Half-Blood is a camp for demigods like you. I'm Chiron this is Annabeth Chase and Grover Underwood." The man wait centaur-Chiron- said while pointing to the two people by him. All of their faces look confused when they looked at my skin I looked down and noticed that my runes are showing the rune must have faded. "You are a shadowhunter aren't you?" Chiron asked. I nodded

The girl -Annabeth- asked, "What is a shadowhunter?"

"I will tell you later. My name is Clarissa Fairchild, but call me Clary. Anyways what time is it?" I said realizing that the sun is already up.

"It is 7 a.m." The other boy -Grover- said. I looked at Grover, really looked at him. He has goat legs and horns.

"You're a satyr, aren't you?" I asked him.

"Yes I am. Percy that I was part donkey." He said.

"It is a common mistake if you don't know your Greek mythology." I say.

"Do you know who your godly parent is Clary?" Chiron cuts in. I turn my head to him and laugh that all look at me like I am crazy.

"I know who my parents are, Chiron, and they are both shadowhunters."

"You pasted the borders so you must have a godly parent." He insists. I get up and grab my bag to make my way out of the infirmary without looking to see if the others are following me.

"If I have to guess I would say my father." I say after a moment of thought.

After a couple of steps out of the infirmary, I abruptly stopped causing Percy, Annabeth and Grover to bump into me. I realized that I wasn't wearing my necklace.

"Why did you stop, Clary?!" Percy asked me.

"Where is it? Where is it? Where is it?!" I murmured.

"Where is what, Clary?" Chiron asked me voice full of concern.

"Was I wearing a necklace when I was found?" I asked no one in particular.

"I didn't see one." Percy said.

I drop to my knees and search my bag with four pairs of eyes on me. I pulled my sketch pad and pencils out when my fingers brushed a cool metal chain. I grab the chain and pull it out and put my necklace on, I sighed happily. I stand up, picking up my bag and putting my sketch pad and pencils back, my back to their faces.

"Was it your bag?" Chiron asked.

"Yes luckily it fell in my bag." I said turning to face them putting my left hand on my necklace. "If I am going to stay here then you should probably show me around." I say trying to distract them from my necklace.

An: Why does Clary not want them to know about her necklace? Why was she so worried about losing her necklace? My