A/N: This is an idea I had before. I normally detest OCs, but I still want to write her in. Let me hear your feedback on her, so I know to include her in the actual series.

A/N #2: Chronologically, this takes place after the first story.

Disclaimer: Just to be safe, Rick Riordan owns Percy Jackson (the universe where this is happening)

Sydney was in shock. She had been kidnapped (kind of) by a boy. Even though he was kind of cute, she still didn't appreciate it.

"Don't worry. Chaos will explain it." Percy said.

Percy opened up a portal of sorts.

"Why couldn't you do this earlier?" Sydney asked.

"It takes time to save up enough energy to do this. Shadow travel for me is easy, it should be easier for you."

"Why?"

"Your mother is the Night."

"Okay, I know you're insane."

"Don't worry. My father will understand. Hurry, they won't follow us through it."

Percy then drew his sword, preparing to defend against any monsters. Sydney shrugged, then walked through. Percy turned and jumped through afterwards. Echidna had kept her promise, but most of the monsters still chose to attack. Not everybody listened to their mother.

Chaos noticed a portal opening in his realm. He stood and approached it. A girl fell through, followed by his son.

"Percy, glad to see you. Daughter of Nyx, stand up."

Sydney stood nervously, looking around.

"In this place, you can train. You may or may not go to camp, as your presence may put others in danger."

Sydney swallowed, and asked, "Why?"

"Your presence is powerful. The monsters were already aware, and you are only twelve. Now that you know of them, it would be like shooting off a beacon to all monsters in a fifty mile radius. Since the monsters already knew, I thought it would be wise to bring you here to train."

"Can I leave?"

"No."

"But my parents… they…"

"Do not worry. They knew about it. Your father is your biological father. He somehow managed to contact me to take you in."

"I need proof."

Chaos waved his hand.

"... Dad?"

"Syd! So, you've heard the news."

Sydney started shaking. "How do I know that you're not a fake?"

Her father just glanced at her, and smiled.

Sydney relaxed. "It is you."

Percy was confused, but Chaos tapped him on the shoulder and told him to be quiet.

"How do you know, Dad?"

"Nyx told me. If you want to see Mom, she's right next to me."

"Really?"

Sydney's father moved aside, and she saw her adoptive mother.

"Okay, it isn't a trap then," Sydney said when she finally stopped talking to them.

"Very well. I will train you."

Percy was shocked. "Why can't I help her?"

"Your powers are just enough to handle the gods and the Titans. The primordials are too powerful."

"But Sydney can do it."

"Only Nyx's powers. Percy, continue training with light. Hyperion's powers should be easy to use."

"Okay, okay."

Percy walked into a wall and disappeared.

"Now, Daughter of Nyx, it is time for you to learn."

A/N#3: Sorry it's all dialogue, wanted to clear some things up.

Next chapter should be more interesting. BTW Son of Chaos should have a new chapter by Tuesday. (Unless bad things happen.)