I don't own Sailor Moon or Percy Jackson and the Olympians.

Usagi was, in a word, giddy. Dancing around the house in her PJs, eating peanut butter out of the jar, listening to 'happy music' giddy. Yeah. She had it bad. Why she was so excited, you ask? Simple: she had her Mamo-chan back!

Oh, and she defeated Galaxia and Chaos, too.

But the important thing was that she had her Mamo-chan back!

The phone rang, forcing Usagi to remove her headphones to answer the phone. Normally, she would have let one of her parents of her little brother, Shingo, pick it up, but her parents were out of town for the day, and Shingo was at a friend's house. "Moshi moshi?" she asked, a little giggle in her voice.

"Good morning, Usako," the deep, silky voice of her boyfriend, Chiba Mamoru, came through the phone. "You sure do sound happy."

"Well, why wouldn't I be?" Usagi grinned into the phone. "I've got you back, Galaxia is gone, I've got you back, the senshi aren't evil, I've got you back... Did I mention that I have you back?"

"Once or twice," Mamoru joked. "I was going to come over and surprise you and take you out on a date, but it occurred to me that you're probably still in your PJs eating peanut butter." It was scary how well he knew her.

"If you come by in ten minutes, I'll be ready," she reported. "Love you, Mamo-chan."

"I love you, too, Usako," Mamoru smiled before hanging up.

The Tsukino household was then swept up into a tornado, courtesy of one Tsukino Usagi. Within seven minutes, the blonde was dressed in nice jeans and a pink blouse, waiting for her prince.

However, before her knight in shining armor could come, something crashed through the living room window. The blonde gasped and jumped out of her seat on the couch, her hand reaching into her subspace pocket to grab her brooch. While searching, she made the mistake of glancing to her attacker. It had the body of a man- a furry man, but a man nevertheless- and the head of a bull. She had fought something similar to it before, a cardian back when she was fourteen. Her search in her subspace pocket became more frantic.

"Come on, kid, time to stop gawking and start running," a new voice said, gently pushing Usagi out the front door.

"What the- who are you? How did you get in here?" she asked the... goat boy?

"Run now, questions later," goat boy said as they ran out of the house and onto the sidewalk. The two ran off of Usagi's lawn and onto the main sidewalk, and the duo promptly crashed into Mamoru. He looked Mamoru up and down quickly before ushering him along as well. "Okay, we've got room for one more." They were, well, pushed, into the back seat of a car, goat boy getting in after them.

"Everyone buckled up?" the driver asked, checking the rear view mirror and revealing his green eyes to the trio in the back. Then, without waiting for an answer, he slammed on the gas, rocketing down the street.

"Are you sure it was a good idea to steal the cab?" the girl in the passenger's seat asked. She had blonde hair and was wearing a blue baseball cap.

"Uh... not really," the driver confessed, struggling to maintain control of the cab.

"What's going on?" Usagi asked, looking at her and Mamoru's three abductors (or was it saviors?).

"My name's Grover," goat boy explained.

"Percy," the driver added in, trying to keep his focus on the road.

"I'm Annabeth," the girl in the front said, turning around to face Usagi and Mamoru. "What are your names?"

"Uh... Usagi," the blue-eyed blonde replied warily.

"Mamoru," the dark-haired man continued. "What's going on here?"

"We're different, as are you," Annabeth told them, trying to keep them calm and explain the situation slowly.

"They're demigods, you're demigods, I'm a satyr," Grover explained simply.

"Uh... okay," Usagi replied.

"Huh. That was easier than I thought," Grover shrugged.

Usagi and Mamoru shared a look. Both believed the satyr 100%. How could they not viewing all they'd been through. "So which gods are your parents?" Mamoru asked, starting up a simple conversation.

"Poseidon," Percy said quickly, still trying to focus on the road.

"Athena," Annabeth continued, being much more conversational. "It's hard to believe we found six demigods in the Azabu-Juuban area."

Usagi and Mamoru shared yet another look, having a pretty good idea of who the other four were. "So... when do we find out who our parents are?"

"Well, officially, you were supposed to figure out when you turned thirteen, but since that rule was only implemented six months ago, there are some problems with the system," Grover explained. "Now there's a ceremony at the camp every night for new kids. You and the other four will figure out tonight."

"Okay..." both Usagi and Mamoru replied, confused by the situation.

Suddenly, the car skidded to a stop, jerking Mamoru and Usagi forward. Hesitantly, the couple got out of the cab and approached a large gateway, and Usagi watched as the words unscrambled for her to read Camp Half-Blood across the top.

"Okay, quick tour," Grover declared, leading Usagi and Mamoru off. "The Big House is on your left, think mess hall, straight ahead are the volleyball courts, arts and crafts, the amphitheater, and the climbing wall to your right. Across the river are the strawberry fields, the stables, the armory, the arena, the cabins and the mess hall."

"Wait, I thought you said the Big House is the mess hall," Usagi said, trying to keep up.

"It is, but it isn't," Grover replied, still talking at an unbelievably fast pace. "And that's the tour. Most new kids go hang out in the Big House. Have fun!" With that, the satyr was off to do... well, Usagi didn't know. Something satyr-y, she presumed.

"What exactly happened, Usako?" Mamoru asked worriedly, looking to his fiancee. "Did something hurt you? Was it a youma attack?"

"It looked like one of the minotaur-cardians we fought back when we were dealing with Ail and An," Usagi confessed. "Then Grover-san came and practically shoved me out of my own house."

"I'm just happy you're safe," Mamoru breathed. He looked around briefly and saw that anyone around them was too preoccupied with something else to notice them, so he leaned down and kissed Usagi lightly on the lips.

The duo then walked into the Big House, its blue doors creaking and revealing their age as they opened. They walked inside and heard yells of anger coming from a room on the right. The two walked into the room, revealing Minako and Rei playing ping pong, and as usual, both were being over-competitive, the while ball of plastic going back and forth on the table with incredible speed.

"Usagi-chan? Mamoru-san?" Ami asked, looking up from her book. "You're here, too?"

"Did that minotaur thing attack you?" Minako asked, turning around rapidly, resulting in her being hit in the back with a ping pong ball. The blonde whipped around to face Rei and claimed, "That didn't count!"

"Uh, yeah it did," Rei replied, not willing to budge on the subject.

In seconds, Minako and Rei got into a war that rivaled many of Usagi and Rei's previous battles.

When it came time for dinner, the senshi and Mamoru were asked to stand up at the front of the mess hall. They were the only new kids that day, so the process would not take all that long. The first to be claimed was Ami, a book and an owl appearing above her head in a hologram.

The kids sitting at one table started cheering, and Ami guessed they were Athena's children. It was strange though. She had blue hair and blue eyes, whereas the kids sitting at the table all had blonde hair and grey eyes. Nervously, the bluenette went to go sit with her brothers and sisters.

The next to be claimed was Mamoru, a symbol of the Earth and an apple appearing above his head. A couple of kids whistled and cheered from the Gaia table, but they were few in numbers and were not half as loud as the Athena children. His hand slowly letting go of Usagi's, he walked over to his new table and sat down.

After him was Minako, being claimed by Aphrodite, no surprise there. Cheers reigned once again.

Next came Rei, being claimed by Ares. Rei walked to her cheering table, her head held high.

After her came Makoto, a lightning bolt appearing above her head. A single whistle was heard, but it came from the Artemis table, which was occupied by Artemis' Hunters. The girl who had whistled approached Makoto and greeted her with a half-smile.

"My name's Thalia," the girl explained. "Currently, your only known sibling." She walked Makoto over to the table that held Percy and Nico, explaining that the children of the Big Three sat at the same table simply so they would have someone to eat with. What the Big Three was, Makoto had no idea, but she was positive she would learn soon.

Meanwhile, on Olympus, quite a debate was occurring.

"We can't just let her not be claimed!" Aphrodite exclaimed. "The other campers will know something's up if she isn't."

"Well, she can't be claimed," Zeus insisted. "It's not possible." By now, most of the gods and goddesses were standing up, getting into minor arguments with each other circling the big problem.

Athena, who had been calmly sitting in her chair, finally stood up and let out a shrill whistle, attracting the attention of her fellow Olympians. "If you all would sit down, I can provide a solution." Reluctantly, the other ten did as they were told. "Now, I'm sure all of us combined have more than enough power to fake a claiming. None of us can exactly claim her, seeing as something would go wrong if she was placed with any one god's children, but if we pool our powers, we shouldn't have a problem telling them half the truth. Now, I suggest we hurry, or everyone on Earth will start to suspect."

Zeus sighed reluctantly. "Fine," he agreed.

Usagi had been standing there with no activity for at least five minutes. "Okay, so obviously, I'm not a demigod or half-blood or whatever it is you call them- er, you- so I'm just gonna go now." Usagi began awkwardly walking away from the front of the mess hall, but she only made it halfway.

Usagi screamed and fell to the ground, the tips of her fingers on her temples as her head was filled with pain. Her breathing came in short gasps as she tried to collect herself, but to no avail. Mamoru was the first at her side, of course, turning her over onto her back, he holding her in his arms. The blonde was glowing, a white aura surrounding her as campers got up to check on her. Well, some were checking on her, wondering if she was okay. Most were just rubbernecking, wondering what was going on.

"Usako, can you hear me?" Mamoru asked, gaining no response. "Usako!"

Then, something appeared above Usagi's heart: a star. No, not a simple five-point star or an asterisk, but an actual star, shrunken to fit over her heart, sure, but glowing pure white and emitting energy.

Shocked gasps were exchanged by the campers, and the whispering started just as quickly.

Mr. D and Chiron worked their way through the crowds, stopping short upon seeing Usagi. "By the gods..." Chiron whispered in shock.

"We need to get her to the infirmary," Mr. D said, preparing to pick the blonde up. However, Usagi's blue eyes blinked a few times, and she slowly sat up, everyone around her staring, people placing hands on her to help her up like she was some sort of china doll.

"Wh-what happened?" the sixteen-year-old girl asked as she stood up.

"You need to get to the infirmary," Chiron told her.

"N-no," Usagi replied shaking her head. "I'm fine... I feel strong." She said it in a quiet voice like she was surprised.

That was when the whistling started. Not the cheering whistles that resounded when her friends and boyfriend were claimed, but more like cat-calls. Whispers were filling her ears, but she was unable to catch any full sentences.

"I-I don't understand," Usagi confessed. "What happened?"

"You're badass!" a boy in the back of the crowd called.

"It seems, Miss Tsukino, that you are the daughter of one of the Forces, the only one, in fact," Mr. D explained. "You are the only known daughter of Cosmos."

Usagi's jaw dropped. She had heard plenty about Cosmos during her final fight with Galaxia/Chaos. Chaos was going on and on about how her sister, Cosmos, pure light and goodness, destroyed everything she had been working towards.

One observant camper caught on to Usagi's shock and declared, "Look out, she's gonna-" Usagi didn't hear the rest of the sentence, for she had passed out.

Okay, so I tried to get all the background info finished with in the first chapter, so it may seem a bit rushed, but I get to move on to the fun stuff and prophecies and such soon.

Please review!