Percy Jackson has a sister.

I wake up in a cave.

Everyone heads over to the big house from the sword fighting arena, the girl Piper was already there, kissing this guy who looked a bit like Ryan. Percy and Annabeth run over and hug him, and the ghost boy from the nature court went over to give him a handshake but the guy pulled him in a hug. He clearly felt awkward about it, but didn't protest. There is mumbling, and a sad look crosses all their faces, the boy then says something and they all go into the big house.

Later after trying a few things Chiron comes over after he has decided I'm not Apollo or Hephaestus. When will I be claimed? The idea of being claimed made me excited and nervous at the same time. Everyone has been talking about this capture the flag, apparently people take is very seriously, so I'm looking forward to it. I have got battle armer and everything so now I have to pick a team to be on. I decide to go with Annabeth and Percy because I've heard they are the best.

Later on everyone gathers round to hear Chiron announce the rules, all magic weapons aloud and no intentional maiming, sounds like fun. I look around all the campers and my eyes latch onto to Jason, the boy Annabeth and Percy were talking to and Ryan. I found out they were brothers, but Jason is Roman, and Ryan is Greek. Annabeth comes over to me and says,

"Tasmin can you go on boarder patrol around near the bridge please," she didn't even ask it like a question, but I nod anyway. I make my way down with others until I get to the bridge, I twist my ring and it is a sword now, some people who haven't seen it look at me in awe. A conch horn sounds in the distance, the game has begun.

The other team was very near to crossing the bridge to win, and we would never make it, something inside of me pinches, I raise my hands, a massive wall of water goes around the lake, i hear some people ask if it is Percy, but I'm concentrating on the person on our team with the flag, when they get to the wall, I realise it is Percy, I call him and he looks over in shock, I call him again and he runs over, I make a small archway through the wall and he stares at me,

"Go to the other side and win the game please!" I tell him. He runs through, and I let the water down, everyone stares at me in shock, gasps are heard everywhere and I look up, above my head is a trident, the mark of Posiedon, I am Percy's half sister, I am daughter of the lord of the sea and horses, I was never meant  to be born. I make a run for it, every inch of me wants to get away! Someone tries to grab me, but I bite their thumb, they howl in pain but I don't look back. Of all the gods why did it have to be one of the big three?

I wake up in a haze, I'm not sure where I am, it looks like a cave, but it is far to pretty. A girl with bright red hair leans over me, when she see's my eyes are open she smiles,

"Good I'm glad your awake! I was really worried when I found you" she says, I look at her, she seems nice enough, "What happened? Did a monster try and kill you?" She asks and there is genuine concern in her face,

"I can't ..." It hits me like a rock, everything comes flowing back, what I did, and who I am, I turn to look at ginger girl and decide I can trust her, "I was playing capture the flag at camp half blood, and I lifted up a wall of water, and my dad is Poseidon" I tell her, as it comes out my mouth realise how ridiculous it sounds, but she just smiles at me,

"So your the one causing all the noise? And by the way your still at camp half blood!" She tells me, I don't know whether to be please or not but I don't show it, "Come on, er what's your name?" She asks,

"Tasmin" I tell her,

"Well come on Tasmin, they will be looking for you, and my name is is Rachel dare, I'm the Oracle, I can spout out prophecy's" she tells me but a look passes her face like she is upset, but she takes my hand and drags me back to the big house.