Disclaimer: I sadly do not own Percy Jackson or Harry Potter. If I did I would be out of school traveling the world.

This story takes place before Harry's fifth year, and after the Titan war.

Prologue

A lone figure walked down the street. She wore black robes with a hood over her face. As she reached up to pull down her hood, a pearl ring glimmered in the dim moonlight. The street on which she walked was not a place for a romantic midnight stroll. The local gangs had long since broken the once bright streetlights that lined the sidewalks, and the nearby buildings all had either bars on their windows or no windows at all. The sidewalks themselves were cracked and choked with weeds, and in some places littered with trash and broken glass. The woman seemed to barely notice her surroundings as she walked swiftly down the street. Her long robes swished around her ankles, but other than that she made no sound at all. Leaning up against a building on the right with a cracked and gloomy façade, was a man. As the woman approached he called out.

"Sally! I have been waiting for you."

"Who's there!" the woman immediately whipped out a long reddish stick, which she pointed at the man.

The man smiled, revealing crinkly lines in the corners of his eyes. He was tall, with jet-black hair and a muscular build. He had sea green eyes that sparkled as if he had just made a joke.

"Poseidon!" The woman rushed forward and collapsed in Poseidon's arms.

"Poseidon, they didn't believe me, they said I was crazy and told me they never want to see me again!" The woman shook while she said this, wiping a tear from her face. "Whatever shall I do? And what about Percy?"

Poseidon looked down at her tear stained face.

"Use your magic, protect him, and when he is ready, send him to the place we discussed. He will be safe there."

"No! All my magic has done is create pain! I can protect him some other way, so he needn't be burdened with magic." The woman gestured eccentrically, waving her hands to go along with her point.

Poseidon frowned. "You cannot hide him from his magic. It will eventually catch up with him. Better he is trained early on, so he is prepared for both worlds."

The woman nodded, but she had a far off look in her eyes like she was imagining someplace else.

"Ok." She looked down the street as she said this, jumping at the hooting of an owl.

Poseidon frowned again, seemingly unappeased by her response.

With a glance down the street where the woman was staring he said: "Do you hear me Sally? Percy will be one of the most powerful children of this century. He must be trained, so when the time comes he is ready. You must send him to the place we discussed, otherwise both of you will be in danger."

"I don't want him to grow up there in that place! I want him to have a normal childhood; I don't want us to be on separate continents!"

Sally glared at Poseidon, her eyes filling with tears.

Poseidon sighed and reached for her hand. "Come to America, and settle in New York. That way if something bad happens, camp will be nearby."

Sally Jackson nodded once, and Poseidon disappeared.

Harry POV

Harry sat at the dining table in the headquarters for the Order of the Phoenix, still steaming. You'd think that they might tell him something about the plan for resisting Voldemort, given the fact that he was the one who saw him come back. But so far every single Order member he'd asked for information had either told him 'he was too young,' or 'not a member of the Order'.

It was infuriating.

He had been stuck at the Dursley's all summer without a single scrap of news. Apparently Ron and Hermione had completely forgotten about him, having been at the headquarters and alerted to every development.

Now however, he had hope that he might actually glean some information from the currently present members of the Order. Dinner had just finished and Sirius had just convinced Mrs. Weasley that he was not too young to know things. Sirius had spoken of a new development that Dumbledore had said Harry needed to know about, and insisted that he was ready to hear about it. Fred and George had protested that they were of age, and should be included. Ron and Hermione had insisted that Harry would tell them everything anyway so there was no point to excluding them. Harry had almost said he wouldn't tell them anything, but he wasn't that mean. So now everyone but Ginny sat around the dining room table, every witch or wizard staring gravely at Sirius.

Unable to contain his excitement any longer, Harry turned to Sirius. "What is it? Do you know where he is? What he's planning?"

Sirius ran a hand through his hair and closed his eyes. "We don't know where he is or what he's planning, but we do have a lead on how to defeat him."

Harry, Ron, Hermione, Fred, and George nearly jumped out of their seats at this news.

"Tell us!"

"How?!"

"What lead?"

"Amazing!"

Once the excited cacophony had died down, (Mostly from Fred and George who were yelling "Amazing, Amazing!") Sirius spoke.

"Fifteen years ago, a one year old boy was taken captive by Death Eaters in London. We know the Death Eaters names because they where arrested by the ministry shortly after, for using the cruciatus curse on victims until they where insane. Their names are Bellatrix Lestrange, Rodolphus Lestrange, Rabastan Lestrange, and Barty Crouch Jr.

We don't know why they kidnapped a little boy. Maybe they wanted him as leverage for something. Maybe the just liked killing and wanted a new victim. Either way, they took him to an abandoned warehouse on the east side of London. We believe that while he was there, he overheard something key to Voldemort's downfall."

Sirius picked up a fork from the table and started twirling it around his fingers.

After a long silence Hermione said, "What happened to him?"

Sirius, who had dropped the fork and was staring at the table, jumped. "The little boy? We thought that the Death Eaters killed him because he simply disappeared after Bellatrix and her fellow Death Eaters where apprehended by the ministry.

Recently however, one of our sources discovered that he is still alive. He and his mother currently live in New York City, in America.

His mother is a witch who used to be in the Order, but left for mysterious reasons. We all thought they where dead until a few weeks ago."

Hermione frowned. "But Sirius, he would have had to go to the Wizarding School in Salem. They would have had his name on file. You would have found him."

Sirius shook his head. "That's the weird thing Hermione. We checked. There are no records of him ever attending a Wizarding School anywhere. He virtually does not exist to the magical community."

Sirius looked at Harry. "This is where you come in Harry. Voldemort knows that he is still alive, and wants to hunt him down and kill him. We want to find him first and bring him here, so we can find out what he knows. We want you to come with us because we believe he might listen to you because of your history."

"Wait." Ron held up his hands in a slow down gesture. "You want to travel to America, find a kid Voldemort wants to hunt down and kill, who you know nothing about, and bring him here, the headquarters of the Order of the Phoenix?" Ron put his hands down. "How do you know he's not a spy?"

Harry smiled. "Anyone who Voldemort desperately wants to kill is ok by me."

Sirius laughed and said, "I thought you might say that Harry.

Mad-eye wants to leave tomorrow, just after sunrise. Are you going to come?"

Harry didn't pause. "Yes!"

"How come we can't come?" Hermione was scowling at Sirius.

"Port keys across continents are risky. We want to take as little people as possible, and myself, Remus, Tonks, and Mad-eye are already going, plus Harry, which makes five. Any more would be too dangerous."

Hermione and Ron both shot Harry envious looks from across the table.

"Wait." Fred was watching Sirius, who put down the fork he was twirling on his plate with a loud clatter. "We're missing something big here. What's this kid's name?"

Sirius glanced up and said, "Percy Jackson."