A/N: Hey, guys! I'm on Memorial Day break so I'm trying to get some writing done. I just finished this chapter, so I'll probably be going back and editing the other ones in a sec. Since I just published another chapter, the list of people who followed/favorited/reviewed isn't as long. If you haven't done that yet, do it now! And you can just skip over this next part. Even though you probably do anyway... Thanks to kadehex, ipodcrush, THE green Blob, NexUmbra, and SeMoBe for following and to ipodcrush, NexUmbra, and Pirouette Prisoner for favoriting! No reviewers this time, but that's okay 'cause it's been less than twenty-four hours. Enjoy!

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Third Person POV at STAR Labs

Team Flash came back to STAR Labs early the next morning, ready for another day of metahuman… stuff. Pretty soon after they left, they realized they had made a really dumb mistake: they left Johnson's doppelganger alone. Not only did this mean he had nothing to sleep on but a gurney, it also meant that he could have messed with their systems or freed the metahumans in the pipeline. Oops.

Luckily for them, Johnson's doppelganger (they'd have to find out his real name this morning) was still in building, sleeping on the gurney. One thing though...he seemed to be having a nightmare of some kind, and a violent one at that.

The doppelganger muttered deliriously, something about demon grandmothers and janitors, and tossed from side to side.

"Maybe the janitor at his school was evil, or something," Cisco guessed.

Caitlin gave him a disparaging look. "I highly doubt that. But I'm gonna wake him up. We need his help, kind of, and he's starting to freak me out a little bit." The rest of the team grunted in agreement as Caitlin approached the teen.

She touched his arm lightly with one hand and he immediately woke up. Before they could blink, Johnson's doppelganger was on his feet, a glowing bronze sword in hand that had appeared from nowhere. He was breathing heavily and seemed to be rapidly attempting to take in his surroundings. When he finally noticed he was holding a sword at Caitlin's neck, he seemed to recognize her and stepped back.

"Sorry about that," he said casually. "But, uh...old habits die hard."

"Dude, is that a real sword?" Cisco demanded rushing forward.

"Um, what sword?" Johnson's doppelganger but the sword behind his back. A moment later, his hand came back empty.

"Woah…" Cisco breathed. "Coolest metahuman power ever!"

"I'm not a metahuman, whatever that is," the teen stated.

"Well, what's your name?" Joe asked. Thank goodness. The author was getting tired of using terms like "the teen," "Johnson's doppelganger," and "the doppelganger."

The teen promptly replied, "Percy Jackson."

"I told you, Joe. That's what he told me last time," Barry reminded Joe.

Percy narrowed his eyes. "I haven't told anyone else my name except…" his eyes widened, "that guy at the coffee shop. Bart Allen, or something. I knew you were acting kind of weird."

"Barry," said person corrected removing his cowl. His friends all gave him annoyed looks, but he protested, "What? He's leaving soon anyways."

Iris caved. "Alright, fine. I suppose if we're going to work with him, he should know our names. Besides, he was bound to find out eventually. His doppelganger is a genius, after all."

Percy laughed. "Yeah, Me-2 is a genius. I wouldn't have figured anything out, if not for that last comment. Thanks, though. I tend to trust people more if I know their name."

"Right, well, whatever," Cisco interrupted. "I'm Cisco Ramon, she's Iris West, that's her dad Joe West, that's Caitlin Snow, and the sourpuss over there is Harrison Wells. Call him Harry. It's less creepy that way."

"What's creepy about the name Harrison?" Percy inquired.

"It's the history, man. The history," was Cisco's bleak reply.

"Great. Fine. Now how do I get home?" Percy demanded, suddenly on edge. "We pretty much have the rest of today before my girlfriend, and the rest of my friends, go nuts. I have a feeling they'll find their way here."

"Well," Caitlin started tentatively. "I think maybe if I could get a blood sample I might be able to figure out which earth you're from. Then we could get you back there."

Percy hesitated. "I'm not so sure I should do that."

"Why not, man?" Cisco interjected. "Caitlin's not going to kill you or experiment on you or anything."

"My DNA is...different."

"Yeah, yeah. We know the particle accelerator exploded and messed up your DNA giving you superpowers. Heard it all before," Joe answered tiredly.

"Uh, no. There was no particle accelerator explosion on my earth. My DNA's different in a...different way."

"Well, then I'm not sure we can help you," Barry admitted. "It'll be a lot harder to find out which earth you're from."

"If I'm honest," Caitlin corrected, "I'm not entirely sure this will work. We haven't really tried it before, but I'm fairly certain there will be some irregularities in your DNA that correlate with one particular earth."

"Fine. But you're gonna get weirded out. Just telling you." Percy walked forward, baring his arm for Caitlin. She quickly extracted the blood, but then noticed something she hadn't before.

"Is that a burn on your arm?" She gestured towards the bottom of a black mark that was showing at the end of his sleeve.

Percy smiled somewhat fondly. "No. It's a reminder." Then he turned and walked out the door. "Let me know if you find anything!"

"Where are you going?" Iris demanded. "How are we supposed to contact you if you're not in the building?"

"I'm not leaving the building!" he called back. "I need to whack something. You wouldn't happen to have anything I can destroy, would you?" Without waiting for a reply he continued, "Never mind. I'll find something."

Earth Twelve: Camp Half-Blood

Annabeth stared at the note Percy had left saying he'd be back in three days. That was three days ago. Needless to say, Annabeth was mad. Her boyfriend kept disappearing at super-inconvenient times. True, no disasters were going on this time, but what if something came up? What could've happened that Percy would take longer to get home than three days? And the portal Percy described…

Ugh. Annabeth hated not knowing. She had to figure out how to get Percy back, wherever he was.

She was shaken from her thoughts by a sort of vibrating noise and a pulsating blue light. Annabeth quickly looked up and saw the same portal Percy had described. Without thinking, something she didn't do very often, Annabeth charged into the portal and hoped she would end up in the same place as Percy.