A/N: Ages: Thalia 12, Percy 12, Annabeth 7, Luke 14. If this is different than the books, you can leave a review whining about it, but I won't change it.
Thalia and her friends sprinted from a small army of monsters: the Furies, cyclopes, hellhounds, and empousai all sent after her by Hades just because she's the daughter of Zeus. When they couldn't keep it up, she turned to Luke.
"When I attack them, you guys need to run across the border."
"Thalia, don't! You'll die!"
"Luke, we both know they're only here for me. Besides, Grover can't fight them off, and we promised to keep Annabeth safe."
Luke opened his mouth to argue, but Thalia sent him a glare that told him it wasn't up for discussion.
"Good luck, Thals," he said sadly as tears grew in the corners of his eyes.
She nodded, then shifted her view to the legion of monsters assembled to kill her. She called down a bolt of lightning, charging her spear with electricity. She tapped her wrist, and it expanded to her shield, Aegis. The monsters were scared for a few seconds by Medusa's visage, and Thalia charged, letting loose a battle cry.
She let her instincts take over, stabbing, slashing, blasting, dodging, blocking. However, she knew she couldn't keep this up for long, as she was pretty drained from running. By the time she had slain about a dozen monsters, she could feel the toll on her body.
Little did she know, however, that this entire scene was being watched by a boy around her age with ruffled jet black hair and golden eyes. He admired this girl for sacrificing her life for that of her friends. As a cyclops began a swing with his club that probably would've taken Thalia's head clean off, he drew his sword and leapt into action, stabbing the cyclops through the heart, then moving on to other monsters.
Thalia was surprised when she saw this new person enter the battle. She was amazed at his skill. It looked like he'd trained for years, which was exactly the case. He rolled under monster's feet, slashing and stabbing, slapping them with the flat of his blade. One other thing that interested her was his sword. The blade was made of some green metal, definitely not celestial bronze, but it was perfectly capable of slaying monsters.
Thalia was forced out of her shocked state when Tisiphone cracked her whip at her. She raised Aegis to block it, but was too late. It made contact with her shoulder, and she cried out in pain. The mystery boy, who had mounted a hellhound, somersaulted over a group of monsters and slashed through the Erinye from right shoulder to left hip, and she disintegrated into fine golden dust, her pained wail hanging in the air. He pulled Thalia to her feet, and they stood back to back, weapons at the ready.
"Who are you?"
"I'll tell you after we send these assholes back to Tartarus."
Thalia grinned, and fought with renewed vigour. The boy kept on fighting like a demon. They worked together as if they had known each other for years. She called down a lightning bolt. It hit her spear, and lanced out, striking three empousa. Soon, they had cut down the army to a pack of hellhounds.
"You got the dogs?" the golden-eyed boy inquired.
"Yeah," Thalia panted.
The boy leapt at Megaera, who attempted to whip him, but she was unnaturally sluggish, and he was able to decapitate her. He then deflected a slash from Alecto, and rolled to her left side and thrust his sword at her. She was ready, however, and quickly flew out of the way, before launching a counterattack. This time, she was sluggish, similar to Megaera, and the boy removed her wings, before dispatching her with a sword to the heart.
Thalia attacked the first hellhound by thrusting her spear upwards, through the bottom of its mouth. The second one pounced at her, running into her shield. Just as it opened its mouth to swallow her whole, she sent lighting down its throat. The final two teamed up on her, oe pouncing, the other charging. She was able to kill the pouncing one with a blast of lightning, but the charging one slammed into her, sending her flying up the hill. Before it could finish the job, a familiar golden-eyed boy mounted it and slashed through its spine, killing it.
"Now will tell me your name?" Thalia asked as he pulled her to her feet.
"First, eat this," he ordered as he handed her a cube like a lemon bar. When she put it in her mouth, he continued. "My name's Percy. Percy Jackson. Yours?"
"Thalia. I don't like using my last name, so…"
Percy nodded in understanding, and they walked the rest of the way to camp. When they entered camp, they were met by Luke and Annabeth, eyes red and puffy from crying over Thalia, Annabeth's more so, and Chiron, attempting to console them. Annabeth looked over, hearing their footsteps, and her eyes brightened.
"Thalia!" she cried as she ran over to her and hugged her tightly.
Luke heard her, and looked where she ran disbelievingly, but when he saw it was indeed Thalia, his eyes widened in joy. When he saw Percy, his brows creased in confusion.
"How'd you survive?"
Thalia pointed a thumb at the golden-eyed boy. "He's really good with a sword."
At that moment, Annabeth approached Percy. "Who are you?"
"My name's Percy. I helped your friend Thalia destroy the monsters."
"You did? I don't see a weapon on you."
Percy chuckled and pulled on a clock pendant hanging from his neck, and a sword with a 3-foot long, green, leaf-shaped blade appeared in his hand.
"I prefer to keep my weapons hidden, wisdom child."
"Wisdom child?"
"I can tell you're a daughter of Athena by your eyes. Warning: Don't let your pride get the best of you."
Chiron cleared his throat. "I think we should all go to the Big House."
They all followed the centaur towards the large baby-blue building near the center of camp. When they entered, they encountered a potbellied man in a dreadful Hawaiian shirt sipping Diet Coke.
"This is our head, Mr. D." informed Chiron
"What's the D short for?" inquired Annabeth.
"Dionysus. Or as my dad calls him, the wine dude," answered Percy with a grin.
The wine dude's eyes became orbs of purple fire. "I'll kill him for that!"
Percy laughed. "Good luck with that."
They heard a nervous bleat, and turned to regard its source. It turned out to be Grover, scared of Mr. D's anger.
"Ah, Grover. Could you please give these three," Chiron ordered, gesturing to Luke, Thalia, and Annabeth, "a tour of camp?"
Grover quickly nodded, and the trio followed him outside to learn their way around camp. Chiron gestured with his head to the living room, then walked inside. Once Percy was inside, Chiron shrunk into his wheelchair and made eye contact with Percy.
"I would like to know more about you."
"I understand. First of all, my father is Chronus, primordial god of time. My name is Perseus Jackson, but I prefer Percy. My birth mother, Sally, died when I was two. My father took me in and raised me in his palace. I consider Chronus' wife, Ananke, to be my mom, as she has been there longer than Sally."
Chiron's face was extremely shocked. "What powers do you have?"
"I can slow down and speed up time, either on an individual level or in an area. Other than my training, those are my abilities."
"Where did you get your sword?"
"My father gave it to me. I am well aware that it is the blade of my namesake."
"Ah. So I'm guessing you trained at your father's palace?"
"I did do a bit of time travel for training, but yes, most of my training was at my father's palace."
Just then, the conch horn signalling dinner blew. Percy stepped outside the Big House. and joined up with the Hermes cabin. He stood next to Luke as they walked down to the dining pavilion.
"I don't think we're brothers, dude."
"We aren't. My dad, however, doesn't have a cabin, so I'll stay in the Hermes cabin."
"Oh."
They walked in companionable silence until they reached the Hermes table. Luke sat to Percy's left, while the Stoll twins sat to his right.
"Another newbie, huh?" said Travis. "Claimed or undetermined?"
"Cabinless."
Everyone's gaze shifted to the head table as Chiron stomped his hoof for announcements.
"Campers! Today, we've received four new campers. They are Thalia Grace, daughter of Zeus, Annabeth Chase, daughter of Athena, Luke Castellan, son of Hermes, and Percy Jackson, son of Chronus, primordial god of time."
When Percy's parentage was revealed, the entire pavilion went silent. Then, an Ares camper spoke up.
"You're joking, right? There's no way that's true."
"I, Perseus Jackson, swear on the Styx that I am indeed the half-blood son of Chronus, primordial god of Time."
Thunder rumbled in the distance, confirming the pledge. When Percy didn't burn to a crisp on the spot, the eyes of nearly everyone in the pavilion widened. After sacrificing part of his meal to his father, Ananke, and Chaos, he dug into his food.
A/N: So, the first chapter in my first AU. I'm really feeling the enthusiasm for this, so if Champion of the Sky isn't updated for a while, that's probably why.