"I am the bone of my sword."

Percy felt like he was dipped into powerful acid as he jumped into the River Styx.

"Steel is my body and fire is my blood."

Percy saw images that he has never seen before flash through his mind. Dreams that didn't go through and two loves thought lost.

"I have created over a thousand blades."

"Saber," Percy whispered unconsciously. "Rin."

Neon green circuits then began spreading throughout his body.

"Unknown to Death, nor known to Life."

Percy's sea green eyes gained streaks of steel grey and his hair gained white tips. He also felt himself begin to stop flowing with the river's current as if he was anchored to land.

"Have withstood pain to create many weapons."

In Percy's mind, he could see a world made of infinite swords and other bladed weapons. With a man on a hill in the middle of it all.

"Yet those hands will never hold anything."

When Percy reached the man, the man held out his hand and Percy held out his own. An unknown message between them was sent and a bright light emanated from them as three figures were seen by them.

"So as I pray-"

"Get up Master/Seaweed Brain/Baka," the three figures ordered before they merged into one. "Come on. We don't have all day, Seaweed Brain. You need to fight Kronos."

"Unlimited Blade Works."

Percy jumped out of the River Styx his eyes like a whirlpool of steel grey and sea green and his hair swaying to an invisible wind. His skin was red and looked as if he had a serious sunburn, but it was slowly returning back to it's normal beach tan.

"Percy? Nico di Angelo hesitantly asked. "Is that... Is that you?"

Percy didn't answer right away as he looked down at his hands. Clenching and unclenching them repeated as if he was testing something.

"Yeah," Percy replied with a smirk. "It's me."

"You feel... different," Nico stated. "And look different. What happened to you in the River?"

"Memories," Percy replied after a moment. Percy then looked towards the Fields of Asphodel. "We've got company."

"What do you mean?" Nico asked, turning his head in the same direction that Percy was looking. "No one is there."

"Trace... on!" Percy muttered as a bow appeared in his hand. "Yes there is, Neeks. You just don't see them. Your father is coming and with an entire army of skeletal soldiers."

Percy then held his hand up at an obtuse angle, his palm facing upwards, and a spiralled bladed sword appeared in his hand in a burst of red light and surrounded by brief blue wisps.

"What in the name of my father..." Nico trailed off as he backed up away from Percy in shock.

Percy then placed the arrow on this bow and as he pulled back, it turned into an arrow made of bone. Percy then began pulsing red energy, which then covered the arrow, before the blue wisps returned and began spiralling around him.

"Sorry for doing this to your father and his army, Neeks," Percy apologized, "but this had to be done."

Percy then released the arrow which shot towards the god of the underworld, at such a speed that it looked like a comet, and his army and struck him with the force of a thousand Master Bolts. When it hit, a mushroom cloud, much like the one from an atomic bomb, rose into the air of the Underworld.

"What the Hades!?" Nico shouted, his eyes wide in shock.

The bow then disappeared and Percy smirked.

"Let's go see your father now," Percy stated. He then began walking towards the place and they soon arrived.

"Jackson," Hades almost growled out, his clothes having dried ichor on his reformed body. "You are lucky that I am wounded or I would have you killed!"

"Then who would save Olympus from Kronos who is going to attack soon?" Percy asked his uncle. "I am the oldest child of the Big Three, Hades. So grow up and quit your whining."

Percy turned around so his back was towards his uncle.

"Now if you don't mind," the son of Poseidon began, his eyes hard as steel. "I have a war to win."

Percy then began the long walk out of the Underworld and soon reached the outside.

"I see that you've finally got your memories and powers," a male's voice stated, "Finally the real enter... I mean battle begins."

"You were going to say entertainment," Percy deadpanned to the male. Percy turned around and saw a fifty year old man wearing a black suit and a cane in hand, with a white beard and white hair. "I know how you are Zelretch."

The old man just smiled at the demigod in front of him and replied, "Yeah, yeah. So, did you know that you were not the only one I brought to this dimension?"

Percy immediately brought out Riptide and put it under Zelretch's chin.

"Continue or you'll be missing a head," he remarked coldly.

Zelretch rolled his eyes.

"Yeah, yeah," the old man replied. "Tohsaka-san and the King of Knights are here in this dimension. Along with the King of Heroes. Lancer is as well."

"Anyone else?" Percy asked, Riptide now back in pen form and away from the old man's chin.

"Caster, Assassin and Rider," Zelretch stated calmly. "And your sister as well, but that won't be for a few more months."

"What about the other Masters?" Percy asked. "Are they here? Or any more Servants?"

Zelretch seemed to think for a moment.

"Nope," the old man replied, rubbing his hands together. Percy could see a twinkle in his eyes, but decided against asking him another question.

"Can you take me back to Camp Half-Blood?" Percy asked. "Or even New York?"

"Of course I can, Perce," Zelretch replied with a grin.

"Archer," Percy replied. "You may call me Archer."

Zelretch smiled widely.

"It's good to have you back, Archer," the old man commented before Percy disappeared in a burst of mana. "I can't wait to see how your friends and the Olympians react to your power."

New York City

"We're being overrun!" a son of Apollo shouted as he and his brothers and sisters were sniping at monsters left and right. "We don't have enough arrows!"

"Well, we need to think of something!" Will Solace one of the 12 Councilors, shouted. "Percy isn't here yet and we can't always rely on him, even if he's our heavy hitter!"

Two roars then shook the bridge they were on and Will Solace looked up and his eyes widened.

"Retreat!" the son of Apollo shouted. "Retreat now!"

It was both the Minotaur and the Nemean Lion. If one wasn't enough, it was two. And Will knew that they couldn't beat the Nemean Lion without losing most of their allies.

'What the hell are we going to do?!' Will desperately thought.

With Percy

Percy appeared atop the Empire State Building. The echoes of monsters, and the smell of death permeating the air. Percy walked the perimeter of the sight-seeing area and narrowed his eyes as he watched everything unfold, before his eyes looked to Williamsburg Bridge where his eyes narrowed upon seeing his old friends the Minataur and the Nemean Lion.

A black bow then materialized in his left hand and a sword in the other. He placed the sword on the bowstring and it turned into a bone arrow.

"Hound of the Red Plains."

"Fly, Hrunting!" Percy shouted before releasing the weapon and it turned into a red bullet that flew straight at the bridge, before it collided with the area and vaporized any and all monsters. Including the fearsome Nemean Lion.

The son of Poseidon smirked before he jumped down and joined the fray.