All pairings that exist in PJO, HoO, and HP exist in this story. Not including Draco/Pansy and Draco/Astoria, because in here it's Draco/Riley or Draco/OC.

Disclaimer: I don't own Percy Jackson or Harry Potter. They belong to the amazing Rick Riordan and J.K. Rowling.

Chapter 1 (Riley- six years old) (Annabeth- seven years old) (Thalia-twelve years old) (Luke- fourteen years old)

*Okay, so Riley is an OC and her mom isn't actually her mom. Her actual parents are Hephaestus and Mr. Evil Wizard (Voldemort). [Riley doesn't know yet though]

*Riley and Annabeth act much older than they actually are because Annabeth is Annabeth, and people get mature when they're on the run

"I don't want to go. I'm tired." I whined to my best friend, and really my only friend.

"We have to, or they'll catch us!" Annabeth replied frantically.

"Who will?"

"The gothy girl and blond guy."

"Oh, fine. But I thought they looked pretty non-dangerous."

"Definitely not, they are most likely like those pretty girls who turned into emousai."

"Oh, that's what those are called."

"Yah, we've been over this Riley." Annabeth said rolling her eyes.

"Okay, let's run." I said smiling.

I ducked out of the alleyway only to crash into someone.

"Owww…" I said rubbing my head.

"Oh my god. I'm so sorry."

"It's fine." I said looking up to see who it was. When I saw the goth girl looking down at me sincerely, I quickly backed away to Annabeth's side.

"You're scared of us, aren't you?" the boy asked us. "I told you we shouldn't have followed them."

"You followed us?" Annabeth asked the two. "You know, we have to go." Annabeth looked at me, and we both sprinted in different directions, but the older kids grabbed our collars preventing us from running away.

I started throwing my fists into the blonde guys chest until finally he recoiled saying, "How does a friggin five-year-old have…" he coughed and finished, "that good of a punch."

I smirked at him and said, "Six." and then noticed Annabeth lying limp in the blue-eyed girl's grasp. My smirk grew as the goth girl turned towards the boy, and Annabeth jumped out of her grasp and we sprinted out of the alleyway.

We heard the other two chasing us, but we had gotten pretty good at running away from people, so it wasn't that hard to lose them. But, eventually, Annabeth and I had to take a break and leaned against a wall for five seconds and were suddenly cornered by the blonde with bright blue eyes and black-haired girl with even brighter blue eyes.

"So, what do you guys want?" I asked them still a little out of breath.

"It's okay, we're not going to hurt you guys. We swear." The girl told Annabeth and I.

But all it took was that one sentence and I was pulled into a flashback.

-flashback-

Ding Dong!

My mom, Katherine Shain, walked to the door. My mom has bright green eyes and light blonde hair that's wavy. I look a little like her with my dirty blonde hair and light green eyes. My eyes also have little flecks of gold and brown in them. Just so you know.

My mom opened the door, and I peered from behind her and saw a huge man standing there. But, something was off about him. Just as I realized this, his face contorted into scary monster-like features. He grabbed my mom around her throat.

I gasped and yelled to my mom, "Mom!"

She looked at me with frantic eyes and whispered one word, "Run."

I didn't, I was about to run to her, but the monster looked at me and in a deep, monotone voice, said, "You're next Riley." And devoured my mom.

I screamed…

-end of flashback-

I didn't realize I was actually screaming until Annabeth shook me.

"Sorry." I mumbled. "Had a flashback." I said in-informatively to her.

But she nodded her head like she understood, and then nodded back to the two people.

"How long's it been?"

"Only a couple seconds, but then you started screaming."

"Okay, I don't trust you two at all." I said turning to the two people who's names we still didn't know.

"I get that, you're cautious. But, we promise we mean you no harm. I'm Thalia." The girl said to us, then pointed to the other guy and said, "That's Luke."

Luke waved to us, and said, "We should move Thals, I saw a weird lobster horse thing."

"Oooh, can I punch weird lobster horse's gut?" I asked him.

"Considering how you punch, sure. But, then Thalia would be very upset with me. Right, Thals?" Luke said.

"Precisely." Thalia replied grinning at him.

"Wait, lobster horse." Annabeth got a far-off look, like she was thinking, and said, "that might be a Ichthyocentaur."

"How do you know these things Bethie?" I asked Annabeth.

"I know stuff and don't call me Bethie." She replied.

Luke eyes were flickering between me and Annabeth for a minute before I heard a roar.

"Oh damn. Also, I just realized I don't know your names." Luke said.

"Uhhh…" I looked at Annabeth who shrugged.

Annabeth said, "I'm Annabeth and she's Riley."

Luke looked at us before turning to look at Thalia who was posed with a spear in her hand, and looked ready to kill. I then twisted the ring around my finger and watched it transform into an almost three feet long bronze sword. Luke looked at Annabeth as hefted her newly found slab of metal.

I watched as Luke walked up to Annabeth and whispered to her, "You're smart, right?"

"I-I guess." Annabeth stuttered back glad that someone noticed.

"Well, I have an extra knife." He said handing it to her, "just saying."

Annabeth grinned and dropped her slab of metal and flashed her new knife in the sun.

*And they valiantly charged into battle and fought the Ichthyocentaur and lived happily ever after with just a few battle scars.

*Not really, but I'm not writing out a lot of fights, but I'll write major ones, so let's just picture a super gory-ish fight in our heads, cha?

"Okay," I said breathlessly, "I think I trust you guys now." As Annabeth nodded in agreement.

*TIME SKIP (When Percy comes to camp)

*Percy comes to camp in mid-June. Riley's birthday is in August too, like Percy, except hers is August 17. (August 17 is my birthday, so figures I would make my OC have my birthday.)

"Roar!" Annabeth and I heard it just as we started walking to the Big House.

"Riley!" Annabeth exclaimed. "The roar!"

I just said, "Sweet, camp has been so basic lately."

Then, I grinned, and after a second Annabeth smiled and raced up the hill at my heels to see the source of the roar. At the top of the hill, we saw a monster that every demigod wants to fight. The Minotaur.

And a boy and woman with black hair. He looked about twelve and he was fighting the Minotaur singlehandedly. The woman suddenly dissolved into a what looked like gold smoke. The boy immediately pounced on the Minotaur. Annabeth and I were frozen in place watching as the boy got thrown onto a nearby rock. The Minotaur reared and charged the boy nearly passed out boy. But, surprisingly enough the boy got up again and got on The Minotaur's back somehow. He quickly scrambled up the monster and ripped one of its horns off. Quickly as It started, it ended as the dreadful monster dissolved into golden dust and the boy collapsed.

I finally was able to move and nudged Annabeth, pointed to Grover who was lying on the grass and said, "I'll go get him."

"I'll get the other boy," Annabeth asked and I nodded.

We ran in opposite directions to get the satyr and boy into camp.

And that's a wrap. I hope you all liked this story. I'm gonna update as soon as possible. But keep reading plz. Thanks so much, ily all! Oh, and I don't have any line breaks, but I'll do those in the next chapter I just forgot for this one.