Disclaimer: I do not own "A Certain Magical Index" or "Black Cat".

Railgun vs Railgun

Train and Sven drive down the road to Academy City quietly. They're there for a reason, they're there to save a friend.

XXX

"Eve! Sven!" Train runs through the smoke covering their base. He left on one of his walks earlier, only to come back to this burning blaze... "Eve! Sven!"

"Over here Train!" a man's voice, Sven.

Train followed sound of the voice and finds him pinned down under some debris. Train lifts it and Sven crawls out.

"Where's Eve?"

"They got her!"

"Who?"

"I don't know! I don't even know where to begin!"

A piece of the ceiling collapses.

"Let's get out of here," Train pushes Sven forward.

XXX

They stop at a rendezvous point to meet with their contact, Glin, an old acquaintance that helped them in the past, though Train knows that there's more to him than meets the eye.

"Here you are, Black Cat," Glin hands over a thick paper sized envelope. "These documents will get you into the city as well as all the information we have on where Eve might be."

Sven takes the envelope and pulls out several papers, cards and a pair of passports. There was a map of Academy City pointing out 5 scattered locations. "What is this?"

"With all the information that I've gathered," Glin answered. "Those are the most likely places that Eve could be taken to, along with blueprints of the labs and facilities, without all their dark secrets unfortunately. If I had more time, I could narrow it down further."

"Sven, there's no time."

"You're right," Sven puts everything back into the envelope. "But first, let's exchange numbers. We'll scout the city around these labs first, you can keep us updated if you find anything."

"Very well."

XXX

At the bar, Sven reveals what had happened. They were ambushed by a mysterious group of special forces with some kind of combat armor. Train can't make anything from Sven's descriptions but the helicopters that he saw in the sky before, which was what prompted him to return to the hideout, was a big enough hint of who took Eve.

"Academy City?" Sven is surprised. "That city of science? Why would they take Eve?"

"I can think of a few reasons," Train answers. "I've had some missions there before."

Sven didn't push that topic, it was one he knew Train didn't want to talk about.

"So, how do we save her?"

"I don't know."

"What?" Sven stands up angrily.

"Sven!" Rinslet bursts through the door. "I heard about the fire, and Eve."

"What? Who told you that? And so fast?"

"We did," Jenos, one of the Chronos Numbers, whom Train formerly belonged to, walks through the door.

"Chronos," Sven muttered.

"Long time no see Train!"

"Just get to the point, what do you know?"

"Worried about your little princess?" Jenos initially played a joking tone, but then dropped into a more serious one. "Don't worry, I'd feel the same way. Unfortunately, I don't know much. I was supposed to help stop them from taking her in the first place, but they were two steps ahead. Now my orders are to bring you to Sephiria."

"Sephiria," Train sounded uneasy. "She's here?"

XXX

"How is it Train?" Sven asks as his partner came back.

"Not this one, it's clean."

"You're sure?"

"Yeah, let's go to the next one."

"Wait, Train."

"No time, Eve is waiting."

"I know, but we can't just work ourselves ragged to the point that we won't be able to save her after we find her. Especially you. You've been infiltrating these labs non-stop with little rest. We've worked together for a long time Train, you can't hide your fatigue from me."

Sven, who's doing his best to keep calm despite Eve's kidnapping is trying to talk down the normally uppity Train.

After a brief silence, Train sighed. "You're right, I can't let the Little Princess see me with a such a distasteful image. She'd never let me live it down." Train stretches. "Let's get some milk."

XXX

"It was good of you to come, Train." Sephiria greets Train and Sven on the floor of an empty room.

Train and Sven take their seats across from.

"I assume Jenos has already filled you in on the situation?"

"He has," Sven answers.

"Then I'll make this short," Sephiria takes a breath. "As you know, Chronos exists to maintain balance in the world. However, Academy City is in constant flux with what we know of its power. All previous attempts to rectify this have succeeded only in the short term."

"I know," Train muttered. "I wasn't the only one sent in there multiple times. Some of them got sloppy."

"It is obvious that they plan to study Eve and shift even greater power into their favor."

"Then why isn't Chronos doing anything about it?" Sven asks impatiently.

"We cannot act," Sephiria answers calmly. "Their leader, Aleister Crowly, threatened to wage world war against Chronos should any of our Numbers or Erasers be found within the city uninvited again."

"Otherwise," Sven butts in. "You would infiltrate and prevent them from researching Eve."

"But you won't save her," Train adds.

Sephiria kept quiet at the accusation.

"The reason you're telling us this..." Sven starts.

"... Is because Train is no longer works for Chronos," Sephiria finishes. "This proposition works out for both our needs. You will be able to save your partner, and Academy City will lose any power that they had hoped to gain from her. And also..."

Sephiria waves for her partner, the Number 2 Belze, to give her a decorated box. Sephiria opens the box to reveal several gun parts.

"To ensure your success, we will give you these."

XXX

Train feels for his gun in his shirt, the Hades. By request, Sven managed to restore the gun to its original form using the Orihalcum parts that Sephiria provided. Sven is currently discussing intel with Glin. Train had already infiltrated and searched thoroughly 3 of the labs on the map. Sven marked a fourth one off. Then he hung up.

"That's where Eve is," Sven mentions. "Glin says it's slightly more fortified than the other labs. There's more security, and according to one of his contacts, there's places that don't match the blueprints."

"Then what are we waiting for?" Train gets up.

"Let me get some things ready, we don't want to attract too much attention to ourselves."

"Well, make it quick." Train turns to see a very nervous male student with a green armband. "We're going to have company."

XXX

"Saten, you sure you saw them here?" Kuroko asks her friend. They were there to investigate a suspicious duo that's come to their attention. They've been found outside research facilities and reported throughout by their Judgment members as well as civilians.

"Yeah!" was the excited reply. "It's like Uiharu said! A middle aged man in a suit along with some guy with spiky hair!"

A third girl sighs and slaps her head. (What has that idiot gotten himself into?)

"Sissy?"

"I'm fine Kuroko," Mikoto tells her.

"Just so you know, if the one responsible really is that ape, I won't be holding back."

"I know, I know. I won't get in your way." (I just want to know what he's up to now.)

Kuroko's phone rings and the girl looks at the number, she then answers the call. "Uiharu?"

"Shirai, one of our members has found the suspicious individuals."

"Where are they?"

"Not too far north of your position, he's tailing them now, they've walked into an alley."

"An alley? Tell him to stop!"

"..."

"... Uiharu?"

"Too late, I've lost contact with him."

"Tell me his last known location, and call an ambulance just in case."

"Come on, Kuroko," Mikoto places a hand on Kuroko's shoulder.

"Right, Sissy. Saten, get back to Judgment base and stay with Uiharu."

"You don't have to tell me twice!"

XXX

"What are you preparing?" Train curiously looks over Sven's work.

"Firebombs, smoke bombs, regular bombs, sleeping gas, nets, tranquilizer darts, freeze bullets, explosive bullets, rockets, all the usual tools. I've even decided to make some radios and navigators so that we can keep in touch with each other."

"Where'd you get the cash to get all that?"

"Chronos was kind enough to supply us with the funds."

"Huh?"

"More like I asked Rinslet and Jenos overheard, he was happy to help friends of Rinslet."

"What? Are there any more? I'm going to get another bottle of milk."

"I'm keeping them Train, so don't even think about it. We could use whatever's leftover on other things that aren't food."

"You know you can't hide stuff from me."

"Doesn't keep me from trying to keep our financial problems in check."

Train sighs. "So, just how do you fit all of these in that suitcase of yours?"

"It's a trick suitcase."

"You know I don't like that answer."

"It's the only answer I can give you. I could go on for hours about all the tricks and gadgets I use and how I put them in."

"Are we really going to need all of these?"

"You said that kid we knocked out was part of a local enforcement organization. If so, then the authorities might have already been warned about our presence."

XXX

"Hey, wake up." Kuroko nudges the unconscious boy.

The boy responds and opens his eyes.

"Are you alright?"

"Yeah, my head hurts though."

"At least you're fine. What can you tell us?"

"I was able to sneak a peek at a map they were looking at. But right now, they're preparing some things, I have no idea what but I managed to hear them say something about getting an 'Eve'."

"'Eve'?" Mikoto repeated the word. (I knew it, Academy City's darkness is creeping up to the surface again.) "Kuroko, we have to stop this."

"Sissy?"

"Tell us where they're going."

"I don't know the exact location, but their map pointed to a place just to the south east of here."

"Uiharu, we need you to pull up a map. And contact Anti-Skill."

XXX

It is now evening, Sven and Train drive up to a road a couple blocks away from their target location. They were alerted to the increased security in the area and are being cautious. The two of them looked on from a corner of the street. Several enforcement officers clad in protective armor guard the entrance to the building.

"You were right, Sven," Train speaks to his partner. "The place is locked down. A few holes that I could slip through though, nothing I can't handle."

"Hey, you might need me in there."

"Heh, so what's the plan?"

Sven tosses Train a few containers. "Plant these inside one of the neighboring buildings, make sure they're empty first. When I set them off, they'll ignite into a big fire."

"A flashy diversion, I like it!"

"With most of them trying to put out the fire, we can easily take care of whoever is left guarding the front."

"And a flashy entrance!"

"It's not like we're going to let anyone see us. But it's the most efficient way to let both of us infiltrate the facility."

"Alright, I'm on it!"

XXX

"It's quiet so far," Mikoto mentions. She and Kuroko were waiting in the security room with the one in charge of the Anti-Skill. "Do you still think they'll try to get in even with all of this security?" They scan all the security camera footage.

"You never know with these spies," Kuroko states. "This 'Eve', we know nothing about it."

"If it even exists," mentions the Anti-Skill officer, a mature woman with purple hair. "None of the scientists I've talked to know about anything called 'Eve'."

"I'm sorry, Ms. Yomikawa," Mikoto starts. "There's a good chance it does exist if there's people willing to take it. Remember the Remnant incident?"

The officer kept quiet at that.

(That's right.) Mikoto thinks to herself. (Once this situation is over, I'll look for the 'Eve' and destroy it myself.)

A loud boom is heard.

"What was that?" Kuroko scans the cameras but nothing strange is showing up.

"Status report!" Yomikawa yells into her radio.

"There was an explosion in one of the neighboring buildings, and now there's a big fire."

"A fire? How long until the fire department gets here?"

"We just contacted them, but there seems to be some kind of traffic jam a couple streets away."

"This is too convenient," Yomikawa mutters.

"A diversion?" Mikoto asks.

"One that we can't exactly ignore," the officer turns on her radio again. "Send half the men to contain the fire and set up a blockade. The rest of you, gather in the lobby and I'll assess the situation. You two, stay here and keep an eye on the cameras."

"Yes ma'am."

XXX

"Alright, is everyone here? With our guard divided thanks to the fire, we'll have to be extra-"

A small clanging noise can be heard, followed by hissing. Cans were filling up the lobby with smoke.

"A smokescreen! Stick together!"

Then came the noises of men collapsing. One fell close enough to Yomikawa for her to catch.

"Hey! What's wrong?" She notices a small dart on his neck. She pulls it out and examines it. "A tranquilizer?" Before she knew it, she was hit with one as well.

All of the officers had fallen, quite swiftly. Two figures walked through the smoke. One wore a fancy hat, the other had spiky hair.

"It would've been more fun if you'd let run in there and knock them all out."

"You'd toy with them too much."

"At least it'd be entertaining."

"Did you get the cameras?"

The spiky haired one pulled out a gun and fired a couple shots. "Yup."

"Then let's go."

XXX

"What just happened?" Kuroko asks.

"I'm not sure," the operator responds. "Captain, this is the security room, what is happening down there?"

A few seconds of silence.

"Captain, please respond!"

Again, nothing.

"We're going down there!" Mikoto rushes out.

"Sissy!" Kuroko follows after her.

XXX

Train and Sven run around the facility, checking every room. Train shoots down every camera along the way.

"Dammit," Sven is understandably frustrated. "I don't think it's on this floor."

"Well these secret labs are meant to be secret," Train sounds like he's joking, but then he shoots at a wall. "It could be right in front of you."

Sven feels the bullet hole with his finger. Noticing something wrong, he rips out the cleverly disguised wallpaper to reveal a steel door.

"How did you?"

"That wall didn't match up with the blueprints," Train answers. "But it's too small for a laboratory. It might be an elevator shaft or something."

"Only one way to find out," Sven puts down his suitcase, pulls out explosives, and plants them on the wall. "Get back!"

Train and Sven create some distance away from the wall. Sven pulls out a trigger, and flips open the cover to the switch. Sven presses the button.

Nothing.

Sven looks at the detonator and finds a metal spike embedded into it.

"I'm sorry, did we interrupt something?" A young girl's voice caught their attention.

Train and Sven turn around to see two young girls wearing the same school uniform, one with twin tails and the other with flower pins.

"I don't know who you guys are, but you better not get on my bad side!" Says the flower pin girl, more irritated and threatening than her friend, kind of masculine. Small sparks burst from her hair

The twin tailed one showed off her green armband. "I'm a member of Judgment."

XXXX

Author: So I noticed about halfway through that I've made Train too serious. So I had Sven snap him out of it and get him back to his jolly self. XD