Well, I was wondering about how powerful Gaia was one night, and what to write in my new story, and this idea came to me. It's basically where Gaia has wiped all of seven, excluding Percy, from history. Now, a past Percy, his 'guide' past Nico, and past Reyna must fight to get their friends back, or Gaia will win the war. So, enjoy and review!

Disclaimer: I am a female, so I'm not Rick Riordan, and I don't own these characters, just the plot.

"What if this doesn't work? What if it fries my brain?"

The boy looked exasperatedly at his friend, who had been complaining ever since he had proposed the idea. They didn't have time for this. Reality was falling apart around them. Next to the boy, a knife began to unravel, the visions it usually provided no longer appearing, because it no longer had an owner to give them to.

The boy turned back to his friend, who was pacing up and down nervously, no doubt thinking about his girlfriend, and what it would mean for her if this didn't work.

"It'll be fine," the boy tried to reassure him. "Look, I'll go first, how about that? Then if it goes wrong, you can try to fix it." His friend laughed bitterly, probably thinking the same thing he was. If only their other friend, one that would instantly know how to fix it, was here. But no. He was gone, just like the others.

His friend took a deep breath, coming to the conclusion that this was the only way he was ever going to get his friends back.

"Okay. Let's do it."

September, After the war with Kronos…

Percy woke up with a pounding headache. Trying not to hurl, he stood up and stumbled towards the kitchen as the world tipped sideward and lurched violently. His vision blurred. He grabbed the edge of the kitchen counter, knuckles turning white under his fierce grip.

He closed his eyes and breathed deeply, trying to ignore the nausea. Just let it pass, Percy told himself. It'll be over soon. His eyes flew open as he checked for any double vision.

When his sight finally cleared, Percy leant back onto the counter, breathing heavily. It had stopped for now, but who knew when it would happen again?

He slowly walked back into his room, trying to regain his footing. Gods, when he could he ever get a break? He'd defeated Kronos – what more could anyone want from him?

He'd had these episodes ever since he could remember, but they got worse as the years progressed. They were only small until he arrived at Camp Half Blood, but then they rapidly began increasing. No doctor had ever been able to tell him what was wrong, and he doubted any doctor would. Even Chiron had said it was nothing like he'd ever seen.

Malcolm, one of his best friends and counsellor the Athena cabin, had once suggested it was something to do with memory loss on their first quest. Maybe his subconscious knew things that Percy didn't, and it was trying to remind him of something important.

It was partly because of the fits that he'd refused immortality. The gods had offered it to him, and he'd stood there, when one of them came on. It reminded him that he was mortal, he wasn't meant to be a god. He had to be able to take a risk. Maybe, one day, he'd even fall in love.

Love. It used to seem so hopeless to him, until he met Rachel. They'd started dating for a while, too. He'd seen her when he bathed in the River Styx. But then she became the oracle of Delphi, and they were forced to break up. It felt really weird when they were going out, like he was cheating on someone, even though he'd never had another girlfriend in his life. Rachel must have felt it as well, because she had confessed to him once that it felt wrong to be going out.

Now, his life was slowly returning back to usual. Percy had returned to Goode High, as the main battle was in August, and he didn't really miss much in the school days. He still returned to Camp Half Blood in the holidays, to see Grover and Malcolm and all that.

"Honey?" his mother wandered in to see her son sitting on his bed shivering. He'd had these fits for years; she wouldn't even have to wonder why. "It happened again?"

He nodded, trying for a weak grin. She smiled back sadly. It obviously pained her to see him like this. It pained him to have this. Lots of doctors had wondered if he had epilepsy, but they'd scanned him when he was having a fit. It wasn't a seizure, so what was it?

Sally bustled over and hugged him, seemingly unaware that he didn't hug back. His mind was elsewhere. Percy caught hold of a vague memory where someone was holding him like this. It wasn't his mum, no, he wouldn't have been suspicious of that. It was someone else. Someone he loved in a different way. Not Rachel either. Someone he close to, someone blonde…

But that was ridiculous. The only blonde person he was close to was Malcolm, and he wasn't exactly a girl. So, that memory must be more vague than he realised. It probably was him mum. SO why did he feel so uneasy?

Curious, Percy began to search his mind, but the memory had darted away, like it wasn't supposed to be there in the first place. So why…?

"Percy, are you alright?" He looked towards his mum. She looked back at him with concerned eyes. What was he thinking about again? That was weird. He couldn't remember.

"I'm fine, mum." He got up and paced about. Just tired, that's all. I haven't been sleeping well lately."

"Is it about the war?" He looked at Sally. He loved her, he really did. But sometimes he wished she wouldn't worry so much.

"No, actually. It's something else. It feels like something's – missing."

0000000

As he sat in school, he couldn't concentrate. His mind kept drifting to other things, probably the ADHD. But it kept drifting to things that had nothing to do with anything in the lesson. When the teacher said Pluto, as they were talking about space, he pictured a jewel, and stacks of greetings cards. When they mentioned Mars, he thought of a set of bows and arrows, along with a burnt stick melting ice chains.

When he got home, he was very surprised to see Nico waiting for him. The younger boy sighed in relief when he saw him, like he'd been waiting for a long time.

"Percy, thank gods. I just got my memory back, so now we have like, eight months to get the others back. Why are you looking at me like that?" Percy stared at his friend in confusion the son of Hades was creeping him out.

"Nico," he asked cautiously. "What are you talking about? What others?" He gaped at the son of Poseidon.

"You seriously don't remember?" He muttered profanities that Percy knew Sally probably wouldn't approve of. "This is bad. This is very bad. How are supposed to…? I mean, it worked for me…"

He trailed off, glancing at Percy, cursing some more. When he eventually stopped, Nico sat on a chair in shock, it seemed. He groaned.

"Look, Death Breath, I have no idea what you're talking about, so if you would care to explain, I would be like, really grateful."

Nico looked up at him, frowning. "If you really don't remember," he said like he was expecting Percy to yell, "GOT'CHA!" at him. "The, well, this is about to become a whole lot harder. You're supposed to know the layout, what monsters we'll have to fight, how long we can remain undetected… If the machine didn't work, then we won't know any that?" He stared at him with serious eyes. "Are you sure you don't remember?"

Percy nodded.

"If I did, do you think I would be thinking you were crazy?" Nico glared at him.

"I'm not crazy," he stated coldly. "I am completely serious right now. And if you don't believe that, then you're not going to see Annabeth again."

"Anna-who?"

Nico stared at him like he'd grown a second head, which Percy figured would have made more sense than Nico at the current moment. Annabeth. The name seemed familiar, but he just couldn't place it.

In a very spontaneous rage, the son of Hades punched a wall.

"God dammit!" He glared at the floor. "We were winning, for Zeus' sake. Couldn't you have just given up? We'd beaten you, you coward, and what do you do? Erase us!" He snorted bitterly, and Percy wondered if he had completely taken leave of his senses.

Nico seemed to notice Percy was still watching.

"Sorry," he apologised. "It's just that someone," he glared at the floor again. "Couldn't accept her defeat, and that's why we're in this mess to begin with." He ran a hand through his hair, obviously stressed. "And, well, that stupid machine didn't even work for you, so now this mess just got a whole lot bigger."

0000000

Percy wasn't quite sure who this 'Reyna' chick was, or why his apparently mentally ill cousin wanted him to Iris Message her, but with an angry son of Hades glaring at you, you tend to do as he says.

"O Iris, Goddess of the Rainbow, show me Reyna at…" he trailed off, glancing at Nico helplessly.

"Camp Jupiter," he supplied, as if it was the most casual thing in the world. Whereas Percy still couldn't get over the fact that there was a Roman camp in the first place. Nico wouldn't tell him any more than the fact that they supposedly had friends there, and the camp defeated Krios.

The mist shimmered, and a girl with obsidian eyes came into view, petting some robot dogs. When she noticed them, she yelped.

"What kind of…?" she seemed at a loss for words. Then, she narrowed her eyes. "Who are you? Did Octavian have something to do with this?" She said the name Octavian with distaste.

"Praetor Reyna, daughter of Bellona," Nico said, surprising both of them. "Long time, no see."

"And I am also the slayer of Krios," she informed dryly. Nico arched an eyebrow. "It appears you know me, but I have not the faintest clue who you are. Would you care to explain?"

So Nico began his rant that made no sense of how Percy should remember 'the others', and that the ground is a filthy coward who should have let them win. Percy zoned out, even though Reyna seemed to be listening intently, with her permanent scowl still etched on her face. Percy looked back just as Nico was saying,

"-Jason."

"You say all this," Reyna stated, cold and emotionless. "As if I should know. As if I should know what you're talking about, and who these…people are. Yet you have no evidence that you aren't simply trying to trick me, to some purpose. How do you expect me to believe you?"

Nico started pacing up and down, the way Percy had that morning.

"Hades if I know! But, look, my sister has been erased, along with her boyfriend, Percy's girlfriend, your best friend, his girlfriend and their best friend. And if we don't get them back, then we will all die. So, yeah, you should believe me, but you never liked to see the best in people, did you?" Her nostrils flared. She frowned, as if contemplating whether or not to yell at them and then cut off the connection. But she must have decided against it, because she sighed heavily.

"Octavian…is joint praetor. I assume you know him too. You must realise that I have to tell him this. He has ways of finding things out, and if I don't, I will no longer be praetor, and no longer able to help you. I do believe you, Nico di Angelo, if that is indeed your name. Your story is too preposterous to be made up, though I do feel as if you are not telling me everything. But Octavian may be a problem. He will not listen past the word Greeks, then war will be declared. I want peace, but I must have more information than the fact that you have to stop the people being erased, and you remember because of a machine that allows you to. I need to know if it is truly worth the betrayal of New Rome."

"Yeah," Percy found himself agreeing, turning on his friend. "I wanna know who this Annabeth girl is, and how come this machine thing didn't work for me?"

Nico scowled.

"Reality was unravelling! It's a miracle it worked all. That stupid woman left us to unravel and disintegrate!"

Reyna was about to say something when, a guy called her name in a shrill voice. She cursed under her breath.

"Octavian." She turned back to them. "I will not tell him, for now. But be warned, it cannot stay a secret forever." And so Nico waved his hand through the mist, cutting the connection. Percy whistled.

"She was hot." Nico slapped his arm. Percy held it. "Ow! What was that for?"

"You have a girlfriend, idiot!" Percy frowned.

"What, that Annabeth girl? I don't even remember her. Apparently, she never even existed now."

"But you loved her, with all your heart. And she loved you back. You went into Tartarus with her, just so she wouldn't have to go alone. I don't care that she's not here – you're not gonna cheat on her, get it?"

Percy gulped and nodded.

"Is Annabeth hot?" Nico rolled his eyes, but he was grinning.

"Even without the others, you're an idiot. Now, come on."

"Where are we going?" Percy questioned as he followed Nico down the stairs.

"To see if we can get your memory back, I mean, maybe it's just buried? Anyway, I suggest that we shadow travel. To Alaska."

The di Angelo grabbed Percy's arm, grinning, and melted into the shadows, dragging Percy with him. The world spun and turned black.

When they re-emerged, they were standing in front of a huge glacier.

Please review! Once I know at least someone's read it up, I'll put the next chapter up. I already have six chapters written, I just don't want to post them if no one's reading. (I have an account on Wattpad that has this story on.)