Disclaimer: I do not own anything or anyone, except Elizabeth Natalie Josephine Jackson (Her full name) or EJ

(Slightly AU)

Note: Percy is six here, claimed at the same age, he knows everyone in CHB and CJ, and Eliza is born in October 4.

Chapter one: A daughter of Poseidon is born

Percy here. It is autumn here in New York and no school today. So… I get to stay with my mom and nicer step dad. When I got home from Camp Half-Blood, I saw mom was pregnant for nine months. Mom said it is not Paul's kid. I took a wild guess. In addition, I think it was my dad's kids. Now I am going to be a big brother to the little fetes.

I get to skip school just to take care of my mom because Paul let me to and he is the best step dad I ever had.

"Percy, you can go anywhere if you want. I'll just call you if I need anything." Mom said.

"Mom," I started. "I would love to, but I promised Paul that I would take care of you."

Mom looked at me with a caring smile. "That's sweet of you, Percy. However, it is okay. I can take care of myself."

"But mom, I love you and I can not break my promise. I swore on River Styx that I will take care of you until the baby is born." I insisted.

"Percy, you know it's only a temporary promise."

"Mom, what day is it?" I asked.

She looked at the calendar. "October 3."

"It's almost near the birth of that-"

"Her." Mom interrupted.

Her? A her? She? As in… A she? Wow, why did not knew that when I had time to ask.

"Okay, it's almost near her birth."

"You're right Percy." Mom smiled at me. It quickly disappeared and replaced with a shocking expression.

"Mom!" I panicked. "Mom, are you okay!"

"P-Percy, Call Paul and the ambulance. I think she is going to be born!"

I did what I mom ordered me. I ran to our phone and began to dial 911, after that Paul. I'm sure he will ran out of his class and once he-

"Are you serious? Percy! I'll be right there!" Paul shouted through the phone, making me a little deaf.

Gods, his shouting is more deafening than a screech of Ms. Dodds.

In the emergency room, Paul was pacing back and forth, even though, as mom said, she is not his kid. It might be my dad's or any god. I mean, my mom is the most kindest woman in the world, she would have won an award for being the best caring mom and wife that is why my dad fell in love with her.

"Paul, please calm down." I pleaded. "Mom will be alright."

"I know… She is giving birth to Eliza." Paul said.

"Who?" I asked stupidly.

"Elizabeth Natalie Josephine Jackson, your baby sister."

I stared at him. He already thought of a name for the baby. Moreover, he did not use his last name, even though they are married.

"Elizabeth Natalie Josephine Jackson? Her full name?" I asked, dumbfounded.

Paul nodded.

"Oh..."

Time passed, it was 30 seconds before midnight and mom was still in the emergency room. Now I was pacing back and forth and Paul was fast asleep.

In a minute, I heard a baby scream and ran to the doors. Then I saw a baby in pink blankets and in mom's arms. She was smiling, and I mean Elizabeth the baby girl who made the whole family happy because of her smile and she was only born in 10 seconds, now she is smiling and giggling.

Then Paul came in, smiling. Mom was smiling too. I was happy that this baby is my little sister.

"Hello, Percy… Meet your baby sister, Elizabeth Natalie Josephine." Mom introduced as she chuckled and handled me the baby.

"Can I nickname her?" I asked and she nodded.

"Well… I was thinking of the nicknames Eliza, Jo, EJ, Nat, Seph, ENJ, and ElNaJo. Which one of them do you like?" I looked at them as they exchanged look.

"We choose… the first four nicknames." They said simultaneously. I cannot believe I just said a difficult word to spell.

I nodded and gave EJ to Paul to hold. "She has dark brown hair like Sally and she has the same sea-green eyes as you…"

"He's right you know." Mom agreed as I stared at EJ. Sea-green eyes? Like dad and me?

"Mrs. Jackson?" A nurse knocked and entered. "I'm here to collect your baby's name. What is it?"

The nurse had familiar curly blonde hair and grey eyes like Annabeth.

"Elizabeth Natalie Josephine." Paul replied.

"Thank you, Mr. Blofis."

"Now, we are just going to place your baby inside the baby room and Mrs. Jackson can go free after three days with the baby." The nurse took EJ and walked out to the third floor to the baby room.

"Are you sure she's safe in the hospital?" I asked.

"Yes Percy. I made sure she's safe in that nurse's hands." Mom smiled at the door.

"Who was she?" I had to ask because it looks like mom knows her better than anyone does.

Mom chuckled. "Didn't she look familiar to you?"

I nodded.

"It was Annabeth."

Annabeth looked older than six did. More like she is sixteen. I guess her mother tampered with her age to sneak in the hospital as a nurse.

"Are you serious?"

"Yes."

"Happy to see her?" Paul teased as he sat next to Sally.

"Maybe. I miss everyone in camp."

"Everyone?" Mom raised an eyebrow on me. "Even Clarisse?"

I nodded. "I miss the feeling she's going to beat me up."

"Really? Well, you are going to camp this winter. Do not worry about Eliza. She's going to be in safe hands."

Okay, that's all for today. And I am very sorry if it is so boring, but I promise you the other chapters will be better. Please review