Crossover! I'm really excited about this, though I think it's going to be bad. (Cricket noises.) Anyway, here you go.

Disclaimer: I own almost no one. If you don't recognize them, they're probably mine.

Barry's POV

"Hey, Cisco. What's going on?" I asked, as I sped into the breach room.

"I was just practicing my powers. It must've set the alarms off, sorry." He said. "On the other hand, where's Iris? I haven't seen or heard from her all day." He said.

"She's working on some story." I said, waving him off. Just then, the alarms did go off.

"Is that possibly because of your powers?" I asked.

"No." He said, running over to the computers. "Incoming breach." We watched expectantly.

After a few seconds, a swirling vortex opened. Two people fell out of it. A boy and a girl.

The boy was hurt, bleeding badly. The girl, looked up, then back down.

"Oh my gods, Percy." She said. "Quick." She looked at me. "I need water. Now." I hesitated, but then sped off, and brought a bottle of water back.

I handed it to her, and she uncapped it and poured it on the boy.

For a second, I thought she had wasted water, but then, the boy's skin started to mend itself.

I watched, not being able to look away.

Then the boy started gasping for air, and the girl sighed. She looked relieved.

The boy, Percy, sat up, and looked around.

"Don't scare me like that, Seaweed Brain." She said.

"It's not like I can control when someone stabs me or not. You should know this by now, Wise Girl." He responded. "Where are we?" Then we locked eyes.

"Where do you think you are?" I asked. He shrugged.

"Could be anywhere. I mean, once I got kidnapped and ended up on the other side of the country. So, yeah, no clue." He said. By now, they were standing up.

"Who are you?" Cisco asked, from behind me.

"I'm Percy," Percy said, pointing a thumb at himself. "And this, here, is Annabeth. Who are you?"

"I'm Cisco, and this is Barry."

"Ok. Next question. Where are we?" Annabeth said.

"Central City, Missouri." I said. Percy and Annabeth shared glances. They had a silent conversation. Then a stripe of white lightning flashed through the room.

Savitar had his hands on Percy's shoulders.

"I'll just take my prize now." He said. Then he was gone.

"Where did that Hera of a person, take Percy?" Annabeth asked.

"Hera of a person?" Cisco asked. Annabeth waved him off.

"Hera relocated Percy a couple years ago. Everyone hates her." She said.

"Wait. Hera? Isn't she a Greek goddess?" I asked.

"Yes." Annabeth said slowly. "I'll explain later, when my boyfriend is safe, and by my side." Oh, that made sense.

"If Savitar wanted him, that means he's really powerful." I muttered.

"Duh." Annabeth said. "He's a child of the Big Three." I didn't know what that was, so I decided to take her word for it.

"Cisco, Barry, we need you in the cortex." Caitlin's voice rang through the intercoms.

"C'mon." I said to Cisco and Annabeth.

I walked up to the cortex with them, conversing with Cisco about what just happened.

"You know I can hear you?" Annabeth said. We ignored her, and kept talking.

"What took you so long?" Caitlin asked, as we entered the cortex. "Oh." She said, after she saw Annabeth. "Who are you?"

"Annabeth. No could we please get back to Percy?" She said. Caitlin's expression asked what we were talking about.

"In a minute. What did you need us for?" I asked. Joe, Iris, HR, and Wally walked in. I nodded in their direction.

"What's up?" Joe asked.

"Well I was just going to say the alarms went off." Caitlin said, putting her hands up in defense.

"Oh, that's the cause of her." I said, pointing at Annabeth. All eyes were now on her.

"Who are you?" Iris asked. Cisco, despite everyone else, pushed his way to his computer.

"Annabeth." She said, walking over to Cisco. He pushed a few buttons, and an ID came up. It was of Annabeth and Percy.

"Peter Johnson and Annie Bell." He said. "Didn't you say your name was Annabeth?"

"Yeah. Now, shove over." She pushed his chair away, and looked at the ID's.

"2.0? This can't be happening?" She said, after a second.

"This isn't us." She said. "For one, my GPA is a 4.0, and Percy's is nowhere close to that."

"Doppelgangers." Cisco said.

"Excuse me? Did you say doppelgangers?" Cisco nodded, to her question. "Are the Greek gods real here?" She asked. "Wait. I can figure that out myself. Hera is the most idiotic goddess to ever exist, and I hate her." She yelled. Then she waited. When nothing happened, she smiled.

"What was that about?" I asked.

"Greek gods are real on my earth. You know, theory of the multi-verse? Well, Percy and I are the children of a Greek god and a human. We call ourselves demigods. Let's see, there are the Greek, Roman, Norse, and Egyptian demigods that we know are living."

"You're joking." Cisco said. "This is the best day of my life."

"Can we get back to finding Percy now?" She asked.

"Yeah." Cisco said. He gained the computer back, and looked at some security footage. We watched as Savitar's white lightning streaked past every screen.

"Wait." Annabeth said. She zoomed in on the footage, and we saw that Percy wasn't with Savitar.

"How did you notice that?" I asked. "Even I didn't notice that, and I have super speed."

"ADHD." She said. "I see lots of details. Where is he?"

No one answered. We just sat there for a few minutes.

"Anyway. I need to punch something. Do you have any practice dummies?" Annabeth asked.

"Yeah in the pipeline." Barry said.

She was about to leave, when someone walked in. We all looked at them.

Percy was standing in the doorway. His eyes rolled back into his head, and he collapsed on the floor.

There it is. Hope you liked it. Please review.

Peace out.