The next morning he had the worst headache he'd ever had.

"I'm never drinking again," Percy moaned, holding his head, "what the hades happened last night?"

Because of his hangover, Percy stayed in bed for most of the day and when he was feeling better, decided to go see his mom.

"Hey mom," Percy said, walking into his mom's apartment.

"Percy!" Sally said seeing him, "How are you?"

"Good," Percy replied, "how's Andy?"

"She's good," Sally said, "how's the job going?"

Percy got a part time job after the Giant War and is saving up enough money to go to London and work with his Uncle Shaun.

Weeks turned into months and it wasn't long until Percy got a little surprise one morning.

"What are you doing here?" Percy asked when he opened the door.

"Delivering your daughter Perce," the man replied, "her mother said that it's your job to name her. Also, I suggest that you leave New York asap. It's nice seeing you cuz."

Percy nodded and took a taxi to his mom's apartment.

"Who is the little one Percy?" Sally asked when he arrived.

"My daughter apparently," Percy replied, "I don't actually remember much of that night. Actually come to think of it, I don't remember a single thing."

They talked for a bit longer, until Sally said one thing that would change the Jacksons lives forever, "Me, Paul, and Andromeda are all going to go with you to London."

"W-What?" Percy asked stuttering, "Why?"

"For one, I'm not going to leave my granddaughter without her grandmother," Sally said, "and two, you'll need someone to keep her for you while you work with my brother and his... associates."

"That is actually a good idea," Percy stated, "according to Apollo I have to be out of New York asap. No idea why though."

"What are you going to name her?" Paul asked.

"Zoe Diana Jackson," Percy replied, "I just feel as if it's the right name for her."

"Are you going to tell her about your past?" Sally asked.

"Yes," Percy replied, "there will be no secrets between me and Zoe."

That night, Percy and his family packed up and left New York City. As he got on the plane, Percy said, "Goodbye New York City for a few years."

1 year later

A woman in a hooded outfit walked up to a man who was in his early twenties and said, "Where other men blindly follow the truth, remember..."

"...Nothing is true," the man finished.

"Where other men are limited by morality or law, remember..."

"Everything is permitted," the man finished once again.

The man stepped forward and as his voice trembled with the intensity with which he spoke, said "We work in the dark to serve the light."

The man then flipped his hood on showing only his mouth as it stretched into a grin, "I am... an Assassin."

"Good to have you in the British Brotherhood nephew," a man in his early forties said, "how is Zoe?"

"She's doing good Uncle Shaun," the man said, "also when she turns 7, I want to begin her training."

Shaun nodded and said, "Alright. Oh and you have your first mission tonight."

"What is it?"

"There is a new Templar that joined in a week ago and I want you to keep an eye on them for a few days or at least convince them that the templars are no good," Shawn replied.

"Their name?"

"Jason Grace," Shaun said as the man froze, "what's wrong Perce? You know them?"

Percy nodded slowly.

"He's like a brother to me," Percy replied, "I don't want him to be a part of this, but I won't kill him."

"Alright, but if he doesn't listen to you then kill him," Shaun said, making Percy sigh.

"Fine," Percy said, "but I'll make sure that it is a swift death. Although I'd rather not kill Jason, I'll do it."

Percy then left the Brotherhood's building and headed to a building where he'll be able to get a good look at the people below him. He activated his Eagle Vision and the whole area was tinged blue. He looked around and saw someone who was colored yellow.

Bingo, Percy thought before jumping down and landing on the sidewalk, scaring a family who was walking. Percy then made his way over to Jason as he flipped his hood down. When he reached Jason he said, "It's been awhile hasn't it Sparky?"

Jason froze and he turned around.

"Perce?" Jason asked as the son of Poseidon nodded, "What are you doing here?"

"I could ask you the same thing Templar," Percy replied coldly, "why did you join the Templar Order Jace?"

"They captured Piper," Jason replied, "they said that if I didn't join them then she'd be killed."

"Swear it on the River Styx," Percy said as Jason swore on the River Styx causing thunder to rumble throughout the sky, "come on. We'll talk more at my place."

Percy then put his hand on Jason's shoulder and vapor travelled to his place.

"Whoa," Jason said as he leaned over a bit, "what was that?"

"Vapor travel," Percy replied, "mom?"

"Percy?" Sally said walking out of the kitchen, "what is Jason doing here?"

"Piper got kidnapped by the Templars and threatened to kill her if Jason didn't join them," Percy replied, "where is she?"

"Sleeping," Sally replied.

"Who are you two talking about?" Jason asked.

"Swear on the Styx not to tell anyone what I'm about to tell you," Percy told him, "it's bad enough that I don't remember that night, but if Zeus comes and takes her then I'll send him to Tartarus myself."

Jason then swore on the Styx and thunder rumbled throughout the sky.

Percy then took him into a room where Zoe was sleeping.

"This is my daughter," he told Jason, "she's a Tri-Blood. The Granddaughter of Poseidon and Sally Jackson. Her mother is unknown. I have absolutely no memory of the night she was conceived. Maybe when she's older I'll be able to tell, but at the moment? No."

"What are we doing here anyways?" Jason asked, changing the subject, "I thought that we were going to save my pregnant wife."

Percy froze and looked at Jason dead in the eyes.

"You two are having a kid?" he asked his eyes wide, "Since when?"

"A month ago," Jason replied, "what's the plan on getting my wife out of there?"

"I'm an Assassin and they're Templars," Percy told him, "I guess you can tell what the plan is."

"You kill?" Jason asked, surprised.

""I was sent to either kill you or convince you to leave the Templar Order," Percy told him, "now then, we are going to do this the Demigod way. Me with water and you with lightning. No holding back."

Jason nodded and Percy vapor travelled to the place they needed to go.

"Wait," Percy said, turning to look at Jason, "shouldn't she be able to get out on her own? I mean she has charmspeak."

"They knocked her out and then gagged her," Jason replied, "at least that is what they told me and they even swore on the Styx."

"Demigods then," Percy said, "alright. Let's get this show started."

Timeskip to after the rescue

"Thank you Percy," Piper said once they were back at Percy's house.

"Think nothing of it Pipes," Percy replied holding his awake daughter, "I just can't believe that I'm a single father."

"Do you know who the mother is?" Piper asked him.

"No," Percy replied, "I definitely know that she isn't your sister."

Piper sighed in relief.

"How's Annabeth taking my disappearance?" Percy asked them.

"She doesn't even know," Jason replied.

"Good," Percy said looking at the couple, "she doesn't need to know."

"She'll find out when she returns to CHB," Piper said, "may I hold her?"

Percy nodded and he handed his daughter to Piper.

"She's so beautiful," Piper said, holding Zoe.

"Piper, you must swear on the Styx that you won't tell anyone where I am unless it's with my permission, or about Zoe."

"I swear on the Styx that I won't tell anyone where Percy Jackson is without his permission and that he has a child," Piper said as thunder rumbled throughout the sky.

"Good," Percy said, "also Jason, I need you to be my eyes and ears in the USA. I have a phone that I got a few weeks ago and I have a feeling that you have one as well."

"Got me there," Jason said as Percy wrote his number on a paper and handed it to him, "thanks."

Jason then wrote his number on a piece of paper and handed it to his brother from another mother.

"Same," Percy said taking the paper, "well I think that the two of you should get back to New Rome. It's nice talking to you."

Piper handed Zoe back to him and the married couple left Percy's place and headed back to New Rome.