AN: Hey all, another chapter for you, and in a timely fashion too! Also, though told from the perspective of Hazel up to this point, this story has always been about Percy. In this chapter, we finally see things from Percy's eyes. I wouldn't deny you seeing his reactions for the final full chapter. Anyways, here it is, the finale, (sort of) of "All That's Left"

XxXxX

"Luke." Percy hissed with malice, eyeing the blonde with nothing but hatred.

Percy knew he shouldn't be taking the time to trade words with the man, and honestly, he didn't want to. If he had his way, he'd put a bullet between Luke's eyes and be done with it, but he couldn't. There were still too many questions he needed answered, which unfortunately meant Luke had to live. At least for a few more minutes.

"Welcome to my lab once again, Percy Jackson." Luke said, raising his arms in greeting. His grin was as cold and poisonous as ever, but he seemed otherwise unfazed by the threat I Percy's tone. "Or should I say, welcome home."

"This isn't my damn home." Percy snarled. "You had my home attacked. You had everyone killed."

"Oh, don't be so dramatic." Luke said with a roll of his eyes. "I had almost everyone killed. I know you're not here alone, Percy."

"So the traitor still lives then? They told you we were coming?" Percy questioned, his mind clouding with betrayal.

"Traitor?" Luke muttered, testing the phrase in his mouth a few times. He seemed thoroughly amused by the assumption. "There is no traitor, unless you can cite your own arrogance as a traitor. Every single one of your worthless friends is loyal to a fault. It was your technology that was your undoing. That information you spent so long encrypting was a trojan horse. I've been inside your friends' computer system for months. Yours for longer."

Percy raised his eyes in surprise. Part of him felt relieved that none of his friends had betrayed him. Relieved that he wasn't wrong to hold such unfettered trust for those around him. The other part of him felt like a complete idiot for never thinking that Luke would be devious enough to pull something like that off.

He growled, reaching to the holster at his hip. He drew his pistol, pointing it threateningly at Luke's skull, right between the cerulean eyes. Luke merely raised an eyebrow at this, daring Percy to pull the trigger before he got what he wanted.

"Enough of your goddamn riddles." Percy growled lowly, wondering what he meant about his own computer system. Tightening his already white-knuckle grip on the pistol, he flashed the weapon in Luke's face. "You answer my questions, and you answer them with truth, and maybe then I'll give you a quick death."

"What's the matter? You don't like riddles?" Luke pouted, looking the part of a young boy who'd just been told he couldn't go over to a friend's house.

Percy steamed where he stood. He didn't have time for this. Dropping the barrel of his gun, he delivered a shot right into the man's thigh. Percy took grim satisfaction in the spurt of blood that came with the bullet sinking into Luke's flesh, but his pleased grin faded as soon as he looked back up to Luke's face. Luke hadn't even flinched, and his mocking pout was still present. If it weren't for the blood slowly pooling at his feet, you'd have never known he'd been shot.

"Ouch." Luke teased, lowering his hands to his thigh. He jammed a hand into his leg, widening the hole with his fingers as he dug around for the bullet. After a few seconds, he drew it out, dropping the lead on the ground with an audible clink. Through the entire process, his eyes never left Percy's, making sure Percy knew exactly how little it was hurting him.

"What the hell are you?" Percy muttered, returning his pistols aim to Luke's skull. He may be able to take a bullet to the leg unflinchingly, but with any luck his brain would be significantly less bulletproof.

Luke tsk-tsk-ed at him like a disappointed teacher. "Percy, Percy, Percy…" he admonished with a shake of his head. "You're a smart boy. You know exactly what I am. And that's why you're so scared right now." The man nodded towards Percy's hand, which was noticeably shaking, much to Percy's chagrin.

"You're… Like me." Percy whispered, his mind filling with horror when he realized all his suspicions over the passing weeks had been true. The worry that had been gnawing at his mind ever since he'd discovered the chip in his head that made him so dangerous.

"Yes." Luke nodded, looking pleased with him. "I'm… Like you. I have the same chip in my head that you do. The one that makes us better than the rest. The one that makes us stronger. Faster. The chip that makes us feel no pain and have no weaknesses. I learn things like you do, I kill people like you do. We are brothers, Percy."

Luke had taken two steps towards him during his little speech, walking directly into the barrel of Percy's gun. Percy reaffirmed his grip on the pistol, but Luke didn't care, continuing his approach until the barrel was resting on his forehead. He leaned into it, begging for Percy's finger to tighten around the trigger and end him once and for all.

"The only difference between us Percy." Luke continued, closing his eyes as he spoke. "Is that I'm better."

Faster than even Percy could react, Luke brought up his arm, hitting Percy in the wrist and sending his aim flying towards the ceiling. Percy tried let off a shot at Luke, but it was much too late. His aim had already been redirected, sending the bullet flying to the cement above instead of to Luke's brain. Realizing what had happened, Percy tried to step away and give him room to take a second shot, but once again Luke proved his speed. He used his other hand to lash out, striking Percy's wrist with so much force that Percy was forced to drop his pistol.

Percy's eyes widened in disbelief. Ever since he'd started this entire campaign to bring Luke Castellan to justice, he'd never been disarmed. Luke had just thrown his weapon from his hands in a fraction of a second, and he'd made it look like it was child's play. Luke was faster than him, and stronger too, which couldn't have been possible unless he spoke the truth. Luke had a chip just like Percy.

Percy didn't have time to dwell too much on this revelation. Instead, he was forced to fight despite his lack of weaponry, jabbing a fist towards Luke's throat with intent to crush his windpipe. The blonde man barely evaded in time, moving his body just enough to see Percy's fist go whizzing by, throwing both of them off balance. Percy recovered quickly, but Luke was much faster, delivering a punishing strike to Percy's abdomen before he could raise his hands in defense. Pain exploded in his stomach, spreading like ripples on water through Percy's body and sending him reeling. Luke approached Percy's hunched over form, standing over him with a snide grin.

"You're weak." Luke taunted, looking down on Percy with distaste. He balled together his fists, raising them above his head in preparation of a vicious overhead blow. "You're not worth the teeny tiny parts of that damn chip in your head."

Percy didn't look up to meet his opponent's eyes, instead using his words as a brief moment of recovery. Before Luke could strike him again, Percy exploded from his hunched position with as much speed as he could muster, driving the top of his head directly into the underside of Luke's chin with a sickening crack.

If Luke were anyone else, his skull would've crumbled from the massive force behind Percy's attack, but he wasn't anyone else. Instead, the powerful blow only sent Luke stumbling back, laughing all the way. He grabbed his jaw and began to massage it slowly. Luke looked to Percy with a newfound respect in his hard eyes. He smiled with red teeth before spitting blood on the ground.

"God. I've been waiting so long to kill you." Luke whispered, with an almost lustful glint in his eyes. Percy narrowed his eyes, dropping into a fighter's stance.

Luke took a few steps towards Percy, and that's when the fighting truly began. The two began to exchange blows in fervor. Percy wasn't sure how he was keeping up with the speed and power of Luke's attacks, but somehow, he was managing it. They exchanged strike after strike in flurries too fast for the normal human eye to follow, forcing Percy to entirely on instinct and subconscious reactions. It was almost like artwork as the two fought each other. A beautifully violent dance that was sure to end with one of them dead, but artwork all the same.

It continued like this for a long while with neither able to gain the upper hand. Luke was stronger and faster than Percy, and probably even more skilled, but he was hampered by the bullet wound in his leg. Though he wasn't necessarily hurting from it, the loss of blood was slowly weakening even his superior body. It made for a near even playing field, meaning that even as the two beat each other bloody with punches and kicks that would crumble concrete, neither could own the other. They fought like this for what felt like hours, but in truth was mere minutes of tiring, agonizing, grueling combat.

The longer the interchange lasted, the more Percy's need for recovery grew. His breaths were ragged, and each muscle in his body felt filled with lead. He knew he wouldn't last much longer like this, so he got desperate. Percy started putting as much force as he possible could into each blow, not even trying to conserve energy. If he was going to lose any strength to fight soon anyways, he might as well take a shot at removing Luke from the fight entirely. It took a few more interchanges, but his strategy payed off. After a particularly violent knee managed to catch Luke in the stomach, the blonde-haired man was sent tumbling, falling to the ground with a huge woosh of air escaping from his lungs. Unfortunately, Percy was too tired to capitalize, and was instead left wheezing in place as Luke slowly regained his feet.

"Who made us?" Percy asked between breaths, looking to Luke with tired eyes. "Both of us should be dead right now. Why the hell would anyone turn us into this?"

Luke was on his feet now, bent over with hands on his knees as he took in huge gulps of air. One hand was clutching his stomach, the other pressing down on his bleeding leg. Before, Luke had been maintaining a charade of feeling no pain, but now he was clearly too tired to keep up the farce. He was hurting as much as Percy was.

"I had a dream." Luke said, without any of the bravado or maliciousness his voice had previously held. It seemed even Luke's love for showmanship had a limit. "A dream to destroy the world that is, and to rebuild it anew."

"I know that." Percy managed, still between breaths. "Typical bad guy wants to rule the world bull shit".

"It's not 'rule the world bullshit' Jackson." Luke interrupted defensively, rising to his full stature. "It's about fixing the world. The world is full of weak people. Weak people who couldn't stand against a common street thug, let alone someone like me. I'm helping the human race. I'm going to purge the world of anyone unable to fight back, and humanity will be better for it because only the strong will live on."

"That's insanity." Percy cried. "You mean to play god? To decide who lives and who dies?"

"I do." Luke said it with such conviction, Percy could see for certain that he believed in his mission with every fiber of his being. In other words, he was a sadistic and cruel madman to his very core.

"Either way, that's what all your experimentation on innocent people was for. To make a super army so you can make your fucked up dream a reality. I want to know why we were made. Why you and I can fight like this and still live."

Luke looked pained for a moment, which shouldn't come as a surprise considering the blood, bruises, and bullet wound he'd already suffered, yet it was. The pain didn't seem to be physical. It was almost like recalling the memory of their creation hurt, even for him.

"We were the first experiments." Luke said carefully, looking Percy square in the eye. "I was grown in a lab, a baby created entirely by science. When I was just a year old, our creator gave me my chip, and raised me to be a warrior. A soldier capable of seeing his mission through."

"And me?" Percy asked, slowly regaining his breath now.

"Our creator soon realized that if he wanted an army of super soldiers like us, he couldn't afford to raise each soldier from when they were babies. You were grown in a tube, like me, but removed when you were eighteen. You matured from just a few cells to eighteen years in only a few weeks. You were a complete blank slate, devoid of any memories, personality, or life experience."

"That's…" Percy muttered disbelievingly. "Impossible."

That couldn't be true, could it? He remembered his life so vividly. He remembered getting his face smashed into his blue cake at his sixth birthday party. He remembered going to the beach with Sally Jackson and playing in the waves whenever he felt sad. He remembered every crush he had in school, every test he failed, every moment of every day of his life. Luke meant to tell him none of that never happened? That he was grown in a tube? That he wasn't truly human?

"Hardly." Luke said with a snort. "Our creator hand crafted your memories, your personality, everything. He based your memories, your personality, your looks, everything, off of his own family that he'd lost a few decades ago. He made you out of nothing. He turned you into a relic of the past. His past. More than that though, he made you human."

"That… It... It can't be true." Percy cried, but he was already starting to fear he was wrong.

It made sense. Everything Luke said made sense. It all added up. Slowly the puzzle began to piece together in his head. It explained everything. Why he had no files of his existence anywhere. Why the only trace of Percy's mother said she'd been dead for years, just like his creator's supposedly long dead wife. It explained why he could recall every memory in his entire life. It was because they weren't memories at all. They were just blocks of data in the chip in his head. Everything he was, was nothing. He was no one.

"It is all true, I assure you." Luke asserted. He almost looked sorry for him. Almost. Percy doubted the man was capable of feeling true remorse for anyone.

"So I'm just a lab rat then? That's all I ever was?" Percy whispered, looking Luke in his cold blue eyes.

"Hardly." Luke spat. "Our creator, he made us both, but we are not the same. We are not equal. He raised me for years, but I was never anything more than a weapon to him. A means to an end. He made your entire personality on a fucking computer, and he treated you more human than he ever treated me."

"He did all this, yet I've never met him. I don't even remember him. Where is he now? I need to speak with the man who rai-… Who made me."

"That can be arranged." Luke said with a scoff. "He's dead, and pretty soon, you will be too. Maybe you'll meet in the afterlife."

Percy's eyes widened, and he began to take a few hesitant steps away from Luke. His mind was reeling, overloaded with all this new information. If what Luke was saying was true, the only man who could give him all the answers he now sought was dead, his answers with him. Still, even in his stupor, Percy could see the rage building behind Luke's eyes as he recounted the tale. There was no doubt in his mind Luke would be on the attack again soon. He needed to be ready.

"His name was Poseidon." Luke explained slowly. Painfully. "His wife, Sally Jackson, and his son, Percy, were killed by some mugger years and years and years ago. Their deaths nearly drove him mad. That was until their deaths motivated him, gave him a new purpose. He resolved to create an unstoppable army, one that could give him complete control over the globe. With that power, he'd wipe the earth of scum and make it so no family would ever suffer like his did. So, he set to work to engineer this army. I was his first attempt at creating the super soldiers he would need. When he realized the technology, he used to create me wasn't good enough, he tried again. He made you, modeled after his son, and when you came out of that tube, his dream vanished. He never tried to make an army again. He had his son back. He didn't need his mission anymore. He didn't need me."

Percy could see the pure hurt and hatred in Luke's eyes. It didn't take a genius to figure out what happened next in this tragic story.

"You killed him, didn't you?" Percy asked, though he already knew the answer. He was just trying to keep Luke talking for as long as he could.

"You're damn right I did." Luke snarled, taking a few steps towards the retreating Percy. Percy's eyes flickered away for a moment, spotting his gun on the floor. With nearly imperceptible steps he began to inch toward it. He needed that gun. He knew he wouldn't win if they had to fight again.

"He didn't even fight back, you know. He just looked at me, disappointed, as if he had the right to judge me." Luke said stonily. His face was red with rage now, and a vein throbbed in his forehead. "He didn't even try to save himself, and seeing his weakness is what gave me my mission. So, I took his research in order to start work on my own army. An army that I could use to wipe his poisonous weakness from the earth. You tried to stop me from killing him of course, but you were only months old at the time. You didn't stand a chance against me. I should've killed you then, but I still held some twisted love for you as my brother. So, I gave you your life, but I took your memory of us so you'd never come after me. Then, I threw you to the streets like a dog, forgotten like I had been. Clearly, sparing you was a mistake."

Percy could barely focus on his words anymore. He was almost to the gun. Just a few more steps. He just had to keep Luke ranting for a few more seconds. Just a few moments and he could end this.

"Why tell me all of this?" Percy asked carefully, treading even closer still to the gun on the floor.

"Because you took my father from me. I loved him and you took him from me. I want you to know that I took him from you just the same. I want you to know so that when I kill you, you'll know that I was the stronger son. I want you to know that when you're dead, I'll be using our father's dream to destroy the world and rebuild it the right way. In my own image."

Percy had no memories of this so-called Poseidon, but by Luke's description, he was a broken man looking to fill the hole his family had left behind. There was no shame in that. Yet Luke had only felt scorned by Poseidon's desperate scrabbling for some semblance of the family he'd lost, and now he was turning the man's dream for peace into a dream for destruction. Percy had no recollection of his supposed 'father', yet he was disgusted by the way Luke was spitting on his memory.

"How could you want this? You say you loved him? He wanted peace!" Percy whispered in horror.

"He did." Luke affirmed. "But he was wrong to want peace. I won't let that fools dream stop me from doing what must be done. I will kill you here and now, and then I will finish what I started. I will kill everyone who doesn't have what it takes to survive. They say, 'the meek will inherit the Earth'. You know what I say to that?" Luke spat on the ground disdainfully. "Fuck that."

Luke charged him, moving with a speed that caught Percy off guard. He lowered his shoulder like a he was executing a football tackle, driving Percy into the cement wall behind him. Percy felt a couple of his ribs crack with the impact, along with the wall he crashed into. Blood erupted from his mouth in a fountain, dropping to the ground in ribbons of scarlet. He brought his fist down on Luke's back, ignoring the pain in his chest, but his punches had no effect.

Luke backed off of Percy, and as soon as his body wasn't holding Percy up, he crumpled. Luke stood a few paces away, looking down on Percy like he was some lesser being. The maniac dug around near his waste before returning with a small knife, the cold blade shining under the fluorescent lights. He tossed it from hand to hand as he approached, whistling a jaunty tune as he prepared to carve Percy to bits.

Slowly, and with pain exploding in every orifice of his body, Percy reached a hand up to the watch on his wrist. Luke halting in his approach, watched him do it, almost intrigued by what Percy hoped to accomplish. After everything Percy had just heard, he knew exactly what pressing this button would do to him. He knew that if he pressed the button, Beckendorf would use the device he'd created, and it would break them both. He also knew that he had no other choice if he wanted to kill Luke. He knew the fate he'd brought upon himself, but it would be worth it to rid the world of Luke Castellan. With the last of his strength, Percy pressed a button on his watch, smiling a smile of complete content. The signal to Beckendorf was sent. It would only be moments now…

"That was your trick?" Luke guffawed after a moment. "Your master plan to kill me was to change the time on your wa-"

He didn't finish his sentence, because a high-pitched wailing from all directions cut him off. Luke tried to block off the ear-rupturing noise, covering his ears as best he could, but it did nothing to save him. Blood began to leak out of his ears, and he fell to the ground writhing in pain. Percy felt a smug smile grace his face, but it only lasted for a moment before the pain hit him too.

It started in his ears, a shrill whining like a mosquito was flying too close. It picked up in intensity, becoming unbearable in seconds. He felt blood flowing from his own ears, and that's when the true suffering started. His vision completely faded, like his own mind was so overwhelmed processing the pain that it couldn't even work on seeing. All there was, was pain. Like someone had taken each individual molecule he had and was slowly ripping them apart and replacing them with fire and poison liquid terror and every other affliction that made kids cry in the night. He heard a blood curdling scream, though he had no idea if it was his or Luke's. His world had no him or Luke. No perception. He had nothing but pain. Then, as quickly as it started, it stopped.

The pain faded faster than it had set on, being replaced with a dull ache and a feeling of intense exhaustion. Every muscle was cramped, and Percy felt like his brain was liquid sludge. Rolling over, he forced himself to his feet, a task he found more difficult than it had ever been. Despite everything, he smiled. Beckendorf's machine had worked to perfection. He only had a few moments now, but he would use them as best he could.

"What was that?" Luke whispered, looking up to Percy with horror in his eyes. He was covered in his own blood and tears and looked as though he'd seen a thousand ghosts. Percy was sure he looked almost exactly the same as his counterpart.

"To be honest, I'm not sure what Beckendorf calls it, but it sure hurt like a bitch, didn't it? He mentioned it would hurt, but I think he undersold it." Percy muttered, shuffling towards Luke as quickly as his destroyed body would let him. "All I know is, it's designed to produce a sonic wave that will destroy the chips in our heads. It'll make us human again."

The shock on Luke's face was delectable, and if Percy himself wasn't in such terrible shape, he might've stopped to enjoy it. Luke seemed so crippled by the idea of being normal, he almost felt bad. Almost.

"Normal? You can't… You… You ruined me!" Luke shouted; his voice clouded with fury. "I'll kill you. And then I'll revive you just so I can kill you again."

Percy laughed, a cold and empty laugh that sounded dead even on his own ears. Numbly, he covered the remaining distance between him and Luke. A few steps that were longer than a country mile. He reached down to the ground, trying to pick up the knife that Luke had dropped in his pain induced panic. His fingers fumbled around the handle for a bit before he was final able to grab it. With a groan, Percy dropped to his knees at Luke's side, pressing the knife to Luke's throat.

"Maybe." Percy muttered, barely able to speak. His brain was fading, and fast. He was losing himself. "But for some reason, I doubt you'll get the chance."

With one fluid motion, Percy swept the blade across Luke's neck. It opened a line of crimson across his throat, gushing out faster than it could ever be stopped. Luke gurgled where he lay, choking on his own lifeblood as it seeped out of him. Percy would've taken time to relish in the man's demise, but that luxury was denied to him. With one last look at the dying man, Percy slipped into unconsciousness.

AN: And there you have it. All the reveals you could ever want. Percy and Luke truly were brothers, created in a lab to fill the hole left in the heart of Poseidon by the death of Sally Jackson and the real Percy Jackson. Luke's entire mission was to destroy the world using Poseidon's own technology, all to spite the man who would never love him as much as he loved Percy. I'm telling you right now, if you predicted that, PM me you cashapp or something so I can slide you twenty bucks. But seriously, I really hope you enjoyed the way I capped this off. Percy learned that he's not even human. He's just a handcrafted grouping of memories and traits made by a grieving man. Tragic, I know. Also, Percy, who's been unstoppable this entire story, finally met an enemy he couldn't beat by regular means. Luke had the same chip as him, but for way longer, making him unbeatable except through Beckendorf's machine. Don't be fooled though, the day is saved and Luke is dead, but there will be consequences, as I assure you the epilogue will show. Until then,

Peace