Percy POV

Plot twist. No, seriously... How can someone be the kid of ALL THE FREAKING GODS?? This made no sense to me whatsoever.

Amy looked terrified for the first time, she was slowly moving away from everyone. Then BAM. My dad, Poseidon appeared behind her.

All the demigods, well, except me.. And apparently Amy, knelt down in respect.

"Dad?" I asked. This was the most number of times I had seen my dad... In a month!! Not even a day!! A month.

"Hello Percy. It's nice to see you twice in a day. Hello campers" He addressed everyone.

"Yes... My Lord?" Chiron asked. He was kneeling down as well.

"I'm here to.. Explain Amy's puzzling case. She was, originally, my daughter."

Wait... Does that mean... I HAVE A SISTER??!! Well, half sister. But still!

"There will be a new Prophecy. My son Percy and Amy here will be in it. Along with the seven, Nico, and Thalia. In view of that Prophecy, the gods have bestowed Amy with their strongest power. She is however, a Cabin 3 member"

And with that, my dad went back to wherever he came from. But not before giving me a message personally.

You are still my favorite Son Percy. Never fear. To be honest, I was a little worried that Poseidon would not like me as much as he liked Amy. But, since he told me I'm still his favorite kid, I let it go.

All the campers still stared at Amy, who looked like she would rather battle all those Monsters than stand there.

Annabeth and I exchanged glances with the 7, Thalia and Nico. We wanted to help her. I wanted to help my 'Half-sister'.

I walked towards Amy and held out my hand.

"Come on. Let's show you around camp"

She nodded, looking relieved.

I dragged her behind me, and we showed her around camp.

"What's your hobby?" Piper asked, trying to make her feel comfortable.

"Oh... I like to draw.. And I sing. But I think that's Apollo's power and not actually what I like to do. I also like to Dance" She said.

Jason and I exchanged glances. Please tell me she doesn't have a habit of speaking Haikus. That's too much. Amy laughed, looking at my expression.

"And no Percy. I don't like Haikus. I don't say them either. "

All the guys sighed in relief and the girls rolled their eyes.

"I like to sword fight as well. " She continued.

Everyone glanced at me.

"Percy's the best swordsman in 300 years. " I shrugged. I didn't want to look like I was boasting.

Amy smiled as well.

"I never said I was better than him." She said nonchalantly.

A challenge.

I smirked. She was in for a lot of trouble.

"Challenge accepted" I said.

Frank POV

There was no way Amy could beat Percy. Even Ares lost to him.

We walked to the training area, and Percy uncapped Riptide. Amy whistled.

"That's Anaklusmos isn't it?" She asked.

"Yep" Percy said.

"Do you need us to find you a..?" Jason started.

Amy shook her head, grinning.

"Ares' gift. The ability to make and use any weapon properly"

The moment she said this, a large, Celestial Bronze longsword sprung in her arm. Well, that was neat. I wish I could do that too. But then again, not everyone can turn into any animal at will.

Percy smirked.

"Nice sword"

"I try"

Percy and Amy circled each other.

"No powers to be used" She warned him.

"Sure"

Percy charged first, aiming for her exposed shoulder. She twisted back, and blocked his strike. Percy feinted to the left and tried to strike her leg. Amy flipped backwards, and slashed at his exposed stomach.

Percy barely had time to block the attack before she twirled away.

"Woah... She's good" Annabeth said, looking surprised.

Frank nodded, his eyes glued to their fight. It was a dangerous dance. Amy was almost as good as Percy himself.

It lasted for about an hour. All the campers approached to watch the scene.

Jason was staring bug-eyed and Piper was trying to get him to blink.

The fight at last ended when Percy spun and came from behind Amy. He tripped her and she fell, the sword flying from her arms. Percy pushed his sword against her neck and placed his leg on her chest

"I win sis!!" He said, calling Amy his sister for the first time.

"Ok Ok... Are you going to let me up soon big bro?"

He laughed, and pulled her up.

Nico POV

I could sense a lot of death around the new girl, Amy. It didn't take a genius to figure out that she was in great pain, and was trying to put up a front. Which was pretty good.

Frank, Jason, Percy and Thalia weren't able to notice it. But as I glanced at Hazel, I knew she could feel it too. I was going to let her, Piper and Annabeth talk to Amy about it.

I hate myself for saying this, but she should open up to someone about it, otherwise it wouldn't do her any good.

I pulled Hazel, Annabeth and Piper aside as the guys took Amy to Cabin 3

"Guys... Were you able to feel her pain?"

Everyone nodded.

"The poor girl. I hate to admit it, but it looks like she went through much more Pain and misery than Percy and I" Annabetb said, a little grudgingly.

I feel her.

"Yeah me too. It looks like having so much power comes with greater misery" Piper said, looking worried.

Her Aphrodite was showing.

"I was thinking that you guys could talk to her, and get to know her better. Fish face, Sparky, Pine cone Face and Frank should also know about this. They're oblivious" I said.

The girls laughed.

"Yeah.. Percy is being way too much of a Seaweed Brain" Annabeth said, giggling.

"I know right!! She's his sister for Gods' sake!!" Hazel said.

I nodded, a smirk making it's way to my face.

"Talk to her after dinner.. Which is right about... Now!!"

Annabeth POV

After Nico talked to us, I called Seaweed Brain and pulled him aside.

"Seaweed Brain, we need to talk"

"What happened Wise-Girl?"

"You do realise that Amy is putting up a front right?" I asked.

He looked stunned. Guess not.

"No.. It didn't look like that"

"Of course not Percy. She's in pain. My guess is that she's been betrayed enough times to not trust anyone again"

Percy nodded, looking dejected. I knew the reason. I pulled him in for a kiss.

"It's not your fault Seaweed Brain. She's been through as much as us. We just don't know what."

"But.. If I had noticed more, I could have helped her earlier. I could have.."

I stopped him with another kiss. I love my boyfriend's ability to put others before him, in fact it was the first thing that made me fall in love with him, but he was being ridiculous.

"Percy, you've been with her for 5 hours. There is no way you could have known. Now, we can help her, just like we helped each other."

He smiled a bright smile. God's, I love that smile of his.

"Ok!! I'm guessing she will sleep in my Cabin. I can talk to her before she sleeps"

Oh sh*t. I forgot about something.

"Percy... That means that I can't come in your Cabin at night"

His face falls. Before he could reply, a voice interrupted him.

"Don't worry Annabeth. I don't sleep at all. Hypnos' gift. I stay energised, relaxed and awake at night. It has the same effects as normal, peaceful sleep. You can take my place in the Cabin" Amy said.

I jumped. I turned to face Amy. She was smiling, but I could see the effort it took her.

"No no.. I couldn't do that I.. " I began.

"That... Place plagues your mind too. You need your rest, and Percy can help you. I can't take that away from you" She said, before walking off, not giving Percy or me a chance to speak.