Hello again! I know it's not yet a month since I posted this story but here I am, updating the second chapter :) Anyway, after a long discussion (more like argument) with my sisters and brother, I changed Omega's modern name to Sillari since they said that it'll suit the OC goddess, blah blah blah. So here it is, Celestine changed to Sillari. I hope you agree with it ^_^v and also before you read, note that I am not entirely basing the story to the actual works of Uncle Rick's since this is an OC's story, after all. Aaaaaand don't forget to give me feedbacks! ^_^b Enjoy reading!

Disclaimer: I don't own PJO/HOO

Vincent Wayne has been at Camp Half-Blood for his whole life. He was still a baby when Chiron found him at the border of the camp, and because Chiron sensed his demigod scent, the wise centaur decided to raise him. Chiron has called him Vincent and used the surname Wayne so he could live a normal life. As normal as a demigod could, anyway.

Ever since Vincent – or Vince for some of his friends – arrived in camp, Chiron took care of him and treated him as his son. Mr. D doesn't mind, though since he really wouldn't mind just don't mind his business too.

However, Vince had to stay at the Hermes cabin when he reached at the age of 10. He had met a lot of kids – undetermined – getting dumped at the Hermes cabin. He had met Luke Castellan when he arrived at Camp Half-Blood with Annabeth Chase both distraught and exhausted from their run and their best friend Thalia Grace's death. He had watched Annabeth Chase being claimed by Athena afterwards. He watched Luke Castellan claimed as Hermes' son.

Vincent had stayed at the back as much as he could. He liked the shadows so much, kept hidden from all attention. His death pale skin didn't help much. Chiron would always look for him for some errand, Mr. D always wanted to ask him for more colas, and classes needed him to go forward.

The moment Percy Jackson arrived and was assigned at the sleeping bag beside his bed, Vincent knew the days will be changed forever. Quests began again, war started with Luke betraying, and Kronos rising. Vincent wasn't known to emotions. He would never cry, nor did he laugh. He would only smile but never got emotional.

When the war ended, Percy was granted his wishes. And one of them being 'all demigods should be claimed by the age 13'. It should have relieved Vincent, then. He was already 14 at that time, 2 years younger than Percy. The Hermes' cabin began to decrease its numbers, all unclaimed now claimed by their godly parent. All except Vincent.

Aside from his deathly pale complexion, Vince had a mop of black hair that badly needed a haircut and pair of coffee-brown eyes with blue ring around the irises. It's a rare color, Annabeth had said in wonder. Luke, Annabeth, and Percy were the only people who dared to talk to him aside from the dryads, naiads, Chiron, some satyrs, and Mr. D.

At first Vincent was hopeful. "It's going to be okay, Vince. There must be a reason behind it," Percy tried to cheer him up Vincent was already 15 at that time, still unclaimed. War against Gaia and the giants broke loose. As one of the senior campers in Camp Half-Blood, he was in charged in taking care of the still young demigods and hiding them from danger.

Chiron and the others – including Vincent himself– didn't know what his godly parent would be. Is it a she? Or is it a he? It always frustrates Vince from not knowing the other part of his life. He was even convinced by Luke to join him, enough reason to join Kronos.

But Chiron meant to him so much more than knowing his parents, or even taking revenge on the gods. It won't do good, he reasoned, to avenge something that never meant to you and end up hurting someone who nursed you to the day you learned to walk and talk.

Three years after, Vince was now 17 – going 18, next week – and yet he was still an unclaimed demigod. Many pitied him, encouraging him, and cheering him up. It's an agony to see those who once lived in the Hermes' cabin being claimed to go on a quest. He never had gone to a quest, not even once. And he never, ever, seen the outside world.

Believe it or not. He had stayed behind at Camp Half-Blood all the wars that happened, his duty to guard the young kids that couldn't join the war.

Vince was sitting at a branch at a tall tree, his back leaning on the trunk and his legs crossed at the ankles as he looked over at the mountains that surround the lake. The lake was glistening from the sun's light. The sky was cloudless, another beautiful day in Camp Half-Blood.

He could see naiads everywhere, and he could hear some Aphrodite kids giggling at the edge of the lake as they gossiped. Then at the other side, he could hear the Ares' kids taunting and arguing with the other kids followed by a clang of metals. Vince closed his eyes and feels the air on his face. He could somehow tell the temperature just by feeling it. He has a strange sense of hearing and smell. He could sense danger coming within a certain range by just feeling the air around him. When he shared it to Chiron, the centaur fell into a deep thought and said he might be a son of one of the wind gods.

Only one thing that changed it all. He had hoped that Chiron might be correct. But the wind gods never have control over temperature. Especially the cold, cold temperature that Vince felt whenever Annabeth or Percy mentioned the word 'Winter'.

"Oi, Vincent!"

Vince opened his eyes and looked down at the gray eyes of Malcolm Pace, son of Athena, looking up at him. "Yes?" he replied quietly.

"Chiron called for you."

Vince uncrossed his ankles and jumped down the tree, flipping his body in midair and landed in a catlike grace on the ground. That's one thing. He can jump from the highest branch of a tree in a slow motion as if the wind was too careful not to drop him and the gravity scared of him dropping on the ground hard.

He patted himself from the unseen dust and nodded his thanks at Malcolm ho smiled and walked away.

Vince could have been mistaken as a son of Hades because of his silent personality and his looks, but nope. Hades never claimed him so it means, Hades is out of question. As well as the gods.

He arrived at the pavilion of the Big House and saw Chiron in his magical wheelchair, playing pinochle with Mr. D. Vince had learned to play that, considering that he was the longest stay in the camp other than Chiron and Mr. D along with some children of the gods who decided to settle down outside of the camp already.

Mr. D suddenly stood up. "I must go now. Get your babysitting straight, Victor."

Vince could only smile at the wrong name. He had come to like Mr. D despite the times that the god of wine was rash and harsh on all demigods. He bowed his head as Mr. D disappeared.

Chiron put down the card and smiled at Vincent. "You've been skipping classes lately, son," he said sternly.

Vince rubbed his neck sheepishly. "Sorry, Chiron."

The centaur's eyes softened as if he knows the reason why. "Don't lose hope, Vincent. Someday we will know who your parent is."

Vince sighed and dropped his arm to his side. "I know. I just… I mean, why took so long?"

"The reasons will be revealed in its own time, Vince. As for now, would you like to come with us for the Summer Solstice tomorrow?"

Vincent's smile appeared on his pale face. Since he's one of the senior campers, he's supposed to go to every solstice that the gods allowed for the demigods to attend. But he doesn't want to go, since all senior campers are already… claimed. "I'm sorry, Chiron. But I can't."

Chiron sighed, the way he would do if he knew that he couldn't persuade Vince. "Very well, then. While I am gone with the senior campers, please look out for the others."

Vince nodded obediently. He turned his heels and walked out of the pavilion with Chiron's eyes following him. Chiron was saddened immensely at the situation of the demigod. He'll make sure to tell the gods about the kid. Maybe they'll have an idea on who his parent would be.

~O~O~O~O~

It's just another Summer Solstice in Olympus. Percy Jackson, now 19, was at the throne room with Chiron, Annabeth, and the other campers.

The throne room never changed after the last solstice they attended. And it's last year. The thrones were still the same, forming a semi-circle with the gods sitting on their respected thrones. Except one.

Now is the third year of Apollo's punishment. Helios had been driving the sun chariot temporarily while Apollo was in exile. There have been no quests and although that may benefit the safety of the demigods, it does not mean that they don't feel restless. News about monster activities increasing yet again has reached them in Camp Half-Blood and they couldn't move without the accurate guidance of the oracles, as stupid it may sound since oracles can be as confusing as a disabled GPS.

Percy was snapped out of his thoughts when Zeus began. "Now that we are here –" He was suddenly cut off by the air pressure that built up inside the throne room. Every one of them reached for their weapons, Percy slipping his hand in his pocket to touch his pen. Their gazes landed on the corner of the room where the air pressure built some swirling mass.

The gods and Chiron, knowing who or what that would be, tensed.

"Relax, children," a booming, gruff male voice echoed across the throne room and it jerked some of Percy's nerves. Whatever or whoever was in that swirling mass, he sure is powerful. "I have not come here to start a war that will soon take place anyway, so you can calm down."

That put Percy in an immediate distress. A war that will soon take place anyway… oh gods, no, Percy thought numbly, not another war. He caught Annabeth's eyes and he knew she's thinking the same.

It was Athena who recovered quickly and warily asked. "Who are you? And what do you mean by a war that will soon take place?"

"Ah! Athena. I have witnessed your wisdom and abilities from the day you were born. A magnificent child, you are." Athena was clearly flattered but held her head high in pride. Percy glanced at Annabeth who had a smile graced on her face and he knew she's proud of her mother. "Well, I am Chaos. Creator of all things that surrounds your universe and the universe itself."

Percy nearly dropped his jaw if only it was not hinged to his own bones. But their mouths hung open in disbelief. Chaos? THE Lord Chaos? The void Chaos? What is Lord Chaos doing here?

As if not aware of their shocks, Chaos continued, "You see, when my grandson and my daughter Earth rose after each other, the dome of the other Protogenoi had opened. We were released and finally able to go wherever we wanted. However, some of the Protogenoi and I chose not to come near this universe as we know that, ah, you Olympians wouldn't like that and so we stayed away. Forgive me for not appearing before you in an appropriate form. If I did, the Earth will collapse, not going to handle my presence much."

Percy saw the gods rising and dropping on their knees, bowing low in front of the primordial god. They followed the gods' example, not wanting to be blasted for being disrespectful.

"Oh, please rise and take your seat. Where's Apollo? My dear enthusiastic Apollo should be here," Chaos inquired in quite… cheery tone.

Zeus rose from kneeling, apparently not comfortable to be on his knees, and tried hard not to grimace. "Apollo has been… doing some things in the mortal world, my Lord."

"As a punishment, I take it?" Chaos asked in a knowing manner. Zeus' face turned red and Percy thought the thunder god would explode that moment. Before he could retort, however, Chaos chuckled. "As much as I don't want to interfere the way you handle things, my dear Lord of the Sky. But I think it is better if the Olympians are all complete. Can you do it for me?"

Somehow, Percy knew that the question was not an 'I would like to ask you' but a 'Do it or else' behind that carefree voice and he could see that Zeus knew that very well. Even Ares, the arrogant god of war, was clearly afraid of the Protogenos of the Void.

Zeus raised his lightning bolt. The lightning zapped at the center and within the smoke stood a young guy, blinking his blue eyes.

Apollo must have felt the pressure and he widened his eyes at the swirling mass. He bowed low, already recognizing the presence of Chaos without being told. "Lord Chaos, what brought you here?" he asked in a child-like tone.

Ares snorted while Aphrodite giggled at Apollo's misery. Artemis regarded them coldly.

"Ah, Apollo. I cannot help you with your… misery as I am not allowed to intervene with the business of Lord Zeus. It is not good. However, we do really need our oracles back now that the world is again in danger. Perhaps my beloved Lord Zeus can alter it?"

Percy wasn't a moron to catch some ridiculous hint from Chaos' request. I cannot help Apollo since the King for now is Zeus, however, I can make this arrogant King of the gods step on his pride by making a simple, urgent, and innocent request in front of an audience and ta-da! He can't defy it without looking like a bad Dad and ruin his image. Oh wow, he has a good image in the first place, take note of the sarcasm.

Zeus gritted his teeth as he turned Apollo back to his old several feet form. Apollo looked at his body before his megawatt grin resurfaced. "Yes! Back to the old times. Wait, I can feel a haiku coming –"

"Brother," Artemis icily reprimanded.

Apollo seemed to remember where he was and he scrambled to his throne and sat. "I'm sorry Lord Chaos, you can continue."

Chaos chuckled at Apollo's antics before he quieted and then talked in a serious voice. "As you heard or – as some point – seen, the monsters activities has increased. However, that's not the only problem." Chaos paused dramatically before continuing, "They are led by my son, Erebus."

Just like that and it stunned all of them. All of them heard of Erebus, of course. Tartarus and Gaia's brother, and the protogenos god of darkness.

"What do you mean by that, Lord Chaos?" Athena tried to clarify.

"My son, Erebus, has escaped his dome of darkness within Tartarus, my dear Athena. My daughter, Nyx, had helped him rise during the second Gigantomachy. He had not shown his self fully because he believed it was my daughter Earth's time. And now, it is his."

The gods had gone pale. "Why are you telling this to us, Lord Chaos? You had never interfered when Gaia attempted to rise," Zeus managed to say.

The swirling mass shifted. "Erebus is much more dangerous, dear Lord Zeus. We know very well that he has the darkest goal among all Protogenoi. Much darker than Nyx and Kronos combined. However, my daughter and I sensed that he has other agenda."

Athena obviously caught a clue. "Daughter?"

The creator laughed a bit. "My youngest daughter who was not known but one of the Protogenoi, dear Wisdom goddess. She chose to serve as my Commander of an army of so many universes."

Ares, of all people expected to react, perked up at the mention of the army. "Army? Cool. I want to meet this daughter of yours, Lord Chaos."

The swirling mass slowed a little as Chaos spoke slowly. "She will arrive shortly after I leave. But I must warn you all. She never liked to be here if not because of her brother. Her powers are equivalent with mine in addition to her own power over life force. She will use her human form to avoid ruining the planet. It's strictly not advisable to trigger her anger while her stay here in Earth."

The gods clearly didn't like the sound of the warning. They apparently don't want another Chaos minding their businesses. But if it's against another Primordial god then they will need as many help as they could get. And having Chaos and his daughter on their side is a huge benefit and advantage.

"What's her name?" Hermes asked in curiosity.

The swirling mass swirled faster that it made Percy feeling dizziness. Seriously, this vortex should slow down. "She goes by the modern name, Sillari, when she is in her human form. But she's known to you as Omega."

"End…" Percy heard Annabeth mumble in translation. When he turned to her she looked as pale as a paper.

Nico, who was there as the representative of the Hades' cabin, grimaced. "I don't like the sound of that."

Despite the discomfort of the name, Zeus said, "thank you for the, lending hand, Lord Chaos. We will expect her."

Chaos hummed in approval. "As long as you heed my approval, you will be alright. I will be off now." Once again the gods kneeled low followed by the demigods. The air pressure dissipated and when Percy looked up, the vortex was gone.

"Well, that was… enigmatic," Jason Grace, son of Jupiter, murmured.

Chiron – who was silent the whole conversation – trotted beside Percy. "This is bad," he muttered. Percy looked up at him expectantly. His eyes were gloomy and worried. "Omega has never reached Earth for centuries."

Percy tilted his head in wonder. Sure, the way Chaos described his own daughter and the way her name sounds, she's scary but isn't she considerate enough to help them? As if reading his mind, Annabeth turned to him while the gods fell in a deep and serious conversation.

"Omega is considered the vilest and most powerful among the children of Chaos, Percy. When Omega visited Earth, a war has ensued. Just because Sky favored her over Earth. And since then, Earth and Omega hated each other… which led to the division of Chaos' children."

Will Solace frowned, his forehead wrinkling in deep thinking. "I never heard of that."

Annabeth rolled her gray eyes. She opened her mouth to speak before Will waved his hand dismissively.

"Yes, yes... your mother is the wisdom goddess and knowledge comes naturally to you. We know that, we know that. Sorry for asking."

Annabeth glared at him while some snickered and some just smiled.

Thalia, who was there with the Hunters, sighed, "Well, as long as we don't anger her, we're fine."

"That's boring," Clarisse sneered and the twin cabin counselors of Hermes – Travis and Connor Stoll – agreed.

"Guys, just don't," Katie warned and I agreed. They don't know what will happen if a deity responsible to all ends gets angry just because of their stupid pranks.

Suddenly, the air pressure came back again and stopped all conversations. This time, instead of another swirling mass, the air pressure formed a rank of black swirls in a shape of a body. The black mass showed a million molecules being sucked by it like some sort of vacuum, which Percy soon realized that the black mass was a form of mini-black hole. It solidified and then revealed a girl in black metallic armor with a purple cape attached on each shoulder pad.

She's tall, wearing tight black suit under her armor and a black knee-high combat boots. Daggers adorned her waist-belt, and two black swords sheathed on her both sides.

One look from her, you'll know that she's dangerous and powerful. Her eyes seemed to reflect the black hole, pulling your force into her until it left you drained and useless. Her skin as pale as a corpse that it seemed impossible that she's alive (Oh, Percy remembered, I actually knew someone or few people who could pass as dead people). Her posture would be easily mistaken as that of a princess, regal and formal. She could be beautiful than the goddess of love herself.

Percy snapped from his awe and dropped to his knee when he saw that – for the third time in one event – the gods, Chiron, and the demigods bowing low at the presence of the unmistakable Omega.