It had been a couple of months now since Caitlin had become 'The Flash', and to say her job was hard would be a bit of an understatement. Everyday a problem or a meta human crisis would appear, and everyday she would go out and be the super hero she knew she could be and save the day, sometimes even with Cisco whenever he wanted to have some "super hero fun", as he called it. It wasn't as if it was hard to balance her new super hero life with her job at S.T.A.R. Labs, as they were now practically one-and-the-same.

She did have times were she slipped up and made mistakes, or when someone got away like Lenard Snart, aka "Captain Cold" as Cisco had put it, who had both stolen a Cold Gun that Cisco had created as a counter-measure against Speedsters and then managed to escape numerous times; but she learnt from her numerous experiences and failures and grew stronger from it, and as time went on she learnt more about her limits that and new potentials that her powers provided.

But they soon learnt fairly quickly that, in order to catch meta humans that either didn't commit suicide or get themselves killed, that they had needed to build a meta-human prison to contain them. To Caitlin's surprise, they had decided to build the prison down where the Particle Accelerator had exploded, and boy was it effective...however despite all of that, Caitlin found that she couldn't go down their on her own, not without Dr. Wells or Cisco at least, and even when she was down there she couldn't stay longer than a few minutes at the most.

Cisco assumed it was because of the night of the explosion itself, but Caitlin and Wells had quickly dismissed that idea since Caitlin was at CCPD at the time of the explosion. Nobody could figure out why Cait was so scared of going into the Pipeline, as the meta-human prison had now been dubbed. However, there was something else that was bothering Caitlin as well, something she had only told either Cisco or Dr. Wells about...

Ever since finding the picture and the rose on her bed in her apartment the day she became 'The Flash', she had felt like she was being watched or that she noticed someone familiar briefly appear behind her, yet she had found and seen nothing. Almost as if she was searching for ghosts. The weird thing about it though was that every time she felt like something, or someone, was there; she had always felt a cold chill running down her spine...yet not one like "Captain Colds" Cold Gun created, this one seemed...unnatural, almost alive even...and she soon would find out why soon enough!

Caitlin was just coming down to S.T.A.R. Labs one day; doing her usual routine of getting up earlier, getting a coffee and something to eat on the go from her favorite coffee shop called Jitters, and then arriving at work early to enjoy her coffee and food before training her powers or stopping the first crime/problem of the day, whichever of the scenarios came first. It was one of the few times that she preferred to go at normal speed. Don't get her wrong, she enjoyed using her speed to help her get to places quickly, but sometimes she preferred to go at a normal human pace for some piece of mind and to remind her of the simple things she may have taken for granted before the Particle Accelerator Explosion.

This time however, she was surprised when she saw that Cisco was already working on the consoles in the Cortex instead of working on some tech, or sleeping in a chair until Dr. Wells come in or he falls off the chair, or even watching something on YouTube on the console like there was nobody around at the time and he could get away with it. Caitlin caught a brief glimpse of what Cisco was working on, but not much, and from what she could see it looked like some photos from a crime scene.

"What are you working on Cisco?" Caitlin asked, catching Cisco's attention. "Oh hey. Joe called me last night for a favor. Apparently he's been getting a load of reports on numerous murders but can't get any evidence on what killed the victims or find any suspects." Caitlin raised her eyebrow to that a bit, as it had been nearly a year since CCPD had asked S.T.A.R. Labs for any help on a case, let alone a mystery one.

"Did he say why he needed help with this case?" she asked cautiously as Cisco brought up the report file he had on a bigger monitor in the Cortex before saying. "Actually, yeah. He thinks it may be meta-human related, because the victims bodies were ice cold before they died, as if somebody stole all of their heat before killing them." Caitlin was surprised by that as she read through the report itself, and was even more surprised when pictures of the body were shown, not hearing Dr. Wells enter the room as he too looked at the case file with interest.

"Was there anything on the victim himself, or any prior victims with similar deaths?" Dr. Wells soon asked, causing Caitlin and Cisco to look to him surprised before Cisco nodded and plugged in a memory stick. "Yeah, Joe downloaded all of the case files that occurred in the exact same way." He brought up all the files, and sure enough they each were described the same way or in a similar manner to the file he previously had up...yet all seemed to have a similar pattern to them as well that Cisco explained as he scrolled through the pictures of the victims on his iPad.

"The strange thing is though, is that the victims themselves were either known to have suspected in being involved in bribe taking, corruption, hell even extortion on numerous occasions. And that's just the tamest parts about them. All describe as "a case of someone with too much power getting their comeuppance", as it were." Cisco said, finding the last part a bit funny even if Wells and Caitlin didn't laugh. "Whoever it is seems to be going after the corrupt more-or-less." Wells observed.

Caitlin soon looked to Cisco and asks him out of curiosity "When did the reports start? Maybe we can narrow it down and find a pattern, especially if it was within the last 11 months." Cisco nodded to that as he went back to his desk and got onto it immediately. "Already on it! Just give me a few minutes to..." He soon found the earliest report and said, way too eagerly, "GOT IT!" He then opened up the file and looked at both the time and date of the file...but then his face fell and he slowly looked up to Caitlin with a grave and pained look on his face, which made Caitlin concerned at that.

"Cisco? What is it?" Dr. Wells asked, sensing and seeing the same thing as Caitlin...to which Cisco slowly and quietly said. "Cait...the first date that the attacks started...was the day after Barry was killed in the car crash and a few hours after the body went missing..." Caitlin's heart felt like it was caught in her throat at that, a look of shock yet total disbelief now present on her features and in her body language as she tried to rationalize it in her head. "No...it can't be..." she slowly said timidly, more to herself in denial than anything. It couldn't be Barry could it? The question racing through her head over a thousand times, and yet despite the rational explanation that came in her mind...her heart was telling her otherwise.

Dr. Wells soon looked between Caitlin and the screen as he asks "I assume you and this Barry Allen were close?" That caused Caitlin to feel even more pain then before, Cisco saw this and gave a look to Wells that said 'Not in front of Caitlin.' which he seemed to get and remained quiet for a bit. Caitlin soon went into her office and bashed her hands down on the table as she closed her eyes, trying to fight back tears of anguish and pain that had built up over many years...and with good reason.

"You okay?" she heard behind her, causing her to open her eyes and turn to see it was Cisco, who looked as pained about the whole situation as she was...if slightly less so. She shook her head a bit as she said "No...I don't want to believe that it's Barry, Cisco...that he's not actually dead, or that he is and turned into a killer...that's not the Barry that we knew...not the Barry that I..." "That you loved?" Cisco finished, Caitlin not even denying it this time as she nodded at that slowly. "Hey, I don't want to believe it either. He was my best friend, our best friend, and think how much it would kill Joe, Iris and Wally if they found out it."

Caitlin had forgotten about that, it was easy for her forget at times that the Wests were Barry's family and had been with him longer than she and Cisco had. They would be devastated if they found out, especially Joe since Barry was more-or-less a second son to him. Caitlin slowly turned to Cisco and said slowly "I think...we need to find out who is doing this before...before we tell Joe." which Cisco nodded his head in agreement, coming to the same conclusion.

As it turned out, Wells agreed to their line of thinking, even if they didn't explain to him about their affiliations with Barry. Admittedly he knew they had been friends with a Barry Allen, mostly from Cisco's boasting before the Particle Accelerator explosion, but Caitlin rarely spoke about him and would always change the subject whenever someone other than Cisco or Joe West spoke about him. It turned out though that finding the potential meta-human was a lot more tricky then they had thought. Whoever it was, they knew how to cover their tracks well.

They, however, managed to get a lucky break when they found out something more in the reports that they had previously over-looked, and in fact that CCPD had somehow managed to over-look: in all of the pictures that were shown in the crime scenes, they had noticed that one thing stood out in particular among everything: a lone cloaked figure in one of the allies looking towards the crime scene, even if his face was obscured by the hood of the cloak and the shadows of the alley, partially.

Now, being in at couple of pictures would have been a coincidence perhaps...but the figure appeared in every single crime scene, albeit in different obscured places and different positions, but always looking towards the crime scene. The figure was so far in the distance in the pictures that it would have been completely understandable for someone to miss him if they hadn't been looking carefully. Caitlin seemed to notice this pattern fairly quickly after a bit, though even she admitted she hadn't noticed this before during the initial look into the pictures.

"Do we have enough to try and track him down?" Dr. Wells soon asked as they pulled up enlarged versions of the figure in the pictures, Cisco went quickly to work at trying to find the figure through every tracking software imaginable. "I can certainly try. Just need to run it annnnnd..." After a prolonged time, much to the annoyance of the trio of scientists, they soon managed to find a security recording of the cloaked figure walking into a high security building at the other side of Central City.

"This is going on now!" Cisco got the coordinates for Caitlin before she sped to get her costume and sped to get quickly dressed and sped off to the building...all the while, Cisco and Caitlin were mentally praying that the figure wasn't who they feared it was...She soon arrived at the location, and could soon see that trouble was already starting as she saw a cloaked figure walking up some stairs fighting off security guards...though surprisingly he wasn't killing them, only knocking them out.

Unfortunately, the cloaked figure saw Caitlin, and then began racing upstairs, despite how futile it may have seemed at the time. Caitlin immediately sped off after the figure, managing to get there in time just as the figure is about to attack someone with an icicle in hand before tackling him down to the ground and smashing him back first into the nearest wall. But before she can shout any questions at him, the figure surprised her when he blasted her straight in the chest with a blast of ice, sending her flying across the room into another wall!

This took Cait off guard and took her some time to recover from the blast of ice sent into her chest, an experience she'd only experienced from Captain Colds little icy weapon, though thankfully at a reduced blast compared to that gun. The figure then blasted out a nearby window with a barrage of icicles before running out the window...and at the same time he ran out the window he used his cold powers to create a icy pathway to slide on midair. Caitlin managed to recover enough to speed after the ice user, managing to catch up with him quickly as he was gliding through the city on his icy pathway. Whoever it was, he was managing to avoid getting into Caitlin's path despite her speed...but he was also running out of places to go.

Soon the cloaked figure made a mistake, as Caitlin hoped he would, as he turned down a pathway towards an alley. He seemed to realize this as well, but before he could turn around to correct his mistake, Caitlin charged at the figure and tackled him off his icy pathway and smashed him down into the ground with a thud! The figure managed to knock Caitlin off of him and started running down the alley, but Caitlin was already on it and knocked him off of his legs onto the ground with her speed before stopping a fair distance before shouting towards him "WHO ARE YOU!?!"

Normally she wouldn't have let her temper get the better of her, but right now she was at her wits end with everything that was going on and with trying to prove this figure wasn't who Cisco thought it was. The ice wielder, instead of answering her question, launched another icicle directly at Caitlin. However Cait saw it coming this time and used her speed to grab it and throw it back at its sender, causing for it to impale into the figures right shoulder...but also caused her to hear an all too familiar grunt of pain from the wound...and then her fears were confirmed when the figure soon spoke in a voice she knew all to well...

"Son of a...! Didn't know you had it in you, Caitlin!" Caitlin's jaw dropped at that and she backed up a bit in fear. "No...!" The figure looked at her as he pulled the icicle from his shoulder in front of her, to her shock, revealing the blood on the icicle...before the wound healed itself instantly within seconds of the icicle being removed...then the figure stood up and removed his hood. The figure itself had long silver hair with ice cold silver eyes, the right side of his face looked like it had been burnt, clawed at and/or smashed through a thousand glass windows, and his skin looked as cold and pale as a corpse...but despite these things, there was no mistaking to Caitlin who it was...it was Barry!

"B-Barry...!?" Was all Caitlin could say, her voice caught up in her throat and her heart beating quicker then it had in years. Cisco and Wells could see this too through the suit camera Caitlin had installed in her suit, and Cisco immediately collapsed into a chair at seeing this, completely speechless and in despair at that too.

The Barry Allen in front of them looked at Caitlin with a cold smirk, nothing like the cheerful and kind smiles he used to give her years ago. "I have not been called by that name in a long, long time..." His voice sounded the same, only darker and also sounded like it was filtered a bit as well. Numerous questions, thoughts and emotions rushed through Caitlin's head, her instincts telling her that she should rush over to him and hug him tightly, her emotions were telling her to burst into tears of joy and sadness at seeing him...yet her rational mind was telling her to be wary of him as well, because this was a side to Barry that she had never seen before and didn't want to believe was possible of existing. Barry couldn't be a killer, could he?

"H-How...How did you...?" she began, barely able to finish her question as Barry finished it as if reading her mind, just like old times. "How did I survive?" His smirk turned into a glare that sent a shiver down Cait's spine. "We didn't, Dr. Snow. Barry Allen did die that night, but I brought him back to life and in that moment...I was born." Caitlin tried to move towards him slowly, holding her hand out in front of her "Barry..." The Barry in front of her just shook his head at her calling him that, saying. "No. That's not my name anymore, Caitlin."

Caitlin didn't want to believe that as she continued to slowly move towards him. "Barry, please, just listen to me..." she began, pleading he would listen...but that only served to make the man in front of her more irate. "THAT'S NOT MY NAME!!!" He shouted at her, his voice so threatening it caused Caitlin to stop in terror. "The Barry Allen you cared for is no longer in control! And he is not who I am! My name is Killer Frost!" He said as he glared at her, this time he was the one advancing on her, and it caused Caitlin to back up in fear.

"You know what's funny though? The fact that you thought I was still dead even after all these years and after all the subtle hints that he left." Caitlin tried to speak, but the revealed Killer Frost soon blasted Cait in the chest with ice, sending her flying a fair distance away into a nearby wall, causing her to land on the ground dazed. Killer Frost then walked over and soon made an icicle appear in his hand saying harshly "Can't have you following me now can I?" before he stabbed the icicle into her lower left leg, causing Caitlin to grimace in pain at that and instinctively grabbed onto her leg.

"That little move right there just severed your tricep cerai. Even with your healing abilities it will take 4 hours to regenerate. Be fortunate that he has enough influence to prevent your death, as much as I may want it!" Killer Frost said as he began to walk away, Caitlin tried to reach out to him, shouting out desperately. "Barry...wait!" Killer Frost stopped at that and for a brief moment, Caitlin thought that she saw his eyes turn from the ice cold silver ones to his green eyes...but they quickly turned back to Killer Frosts eyes as he said slowly "If you truly cared for him, you'd have tried to contact him sooner! Don't follow me, Flash!" He then ran off into the distance, using his cold powers to send him flying off out of sight.

Caitlin was powerless to stop him, no pun intended, smacking her fist into the ground as she screamed out in frustration. By the time she got back to S.T.A.R. Labs, she was laying down on the stretcher bed waiting for her wound to heal fully...but her emotional state was far more damaged then her leg. For the last hour she had cried for god knows how long at how the man she had cared for had become cold-heart villain. Cisco hadn't been any better, although he wasn't as emotionally effected by this new Barry than Cait had: he was still upset to see what happened to his best friend since they last saw each other.

"It's true isn't it!?" They soon heard, and unfortunately they weren't happy when they saw who it was that asked the question...it was Joe! The detective had arrived in the Cortex and looked like he was on the verge of having a serious breakdown or on the verge of shooting something...which neither Caitlin nor Cisco would put past him considering he was armed. "Tell me it isn't true! That the one who caused these attacks wasn't Barry! That's not the Barry I knew!" Joe said with a rising tone of irritation and disbelief, which began to scare the 2 scientists.

"How did you...?" Cisco began slowly, but the detective instantly cut him off "There was a security feed of 'The Flash' taking on the attacker, and Dr. Wells called me and told me what you lot had seen! And I'm asking you to tell me that it's not true!" Caitlin was struggling to look to the detective. Joe was, after all, Barry's foster father and the detective had raised Barry for years. She slowly looked to Joe and shook her head, even though she didn't want to.

"Joe...I'm sorry...but it was Barry...or, part of him anyway..." Joe almost collapsed to the floor at hearing what Caitlin said, soon saying slowly "No...No it can't..." Caitlin closed her eyes as she felt tears bubbling up to the surface in her eyes, feeling the exact same way as the detective. She didn't want to believe it either, but unfortunately it was true...Cisco then soon voiced something that had come to his mind.

"You said "part of him", Caitlin...and if I remember correctly, he kept referring to himself as "he" or "him" at times, right?" Caitlin nodded her head a bit, though she didn't know what Cisco was getting at. "That's what he said...he also said his name was now "Killer Frost" instead of Barry..." Cisco wasn't even going to deny that the name 'Killer Frost' wasn't a cool name for this new side to Barry, but he soon ran over the lab at the over side of the Cortex, causing Caitlin to open her eyes and look at Cisco in confusion...not expecting what was said mere minutes later.

"I knew it! Or...I had a feeling at least." Caitlin soon shouted to him so he could hear her. "What are you talking about?" Cisco soon came in and typed up something in one of the computers before shower the icicle that had been in Caitlin's leg, soon saying. "I just did a DNA test on the icicle that Killer Frost used on you and compared it to Barry's DNA. Check this out." Soon the DNA results came through...and although there was strands of similar DNA between both versions of Barry, naturally...but Killer Frost had a number of different strands of DNA that made him a completely different person to the Barry Allen they knew.

"It appears our ice-cold villain has different DNA to Mr. Allen's. They may be the same person, but two different personalities." Joe and Caitlin were shocked by the revelation, although it did take Wells explaining it for the detective to understand, and Joe soon asked "What does that mean for Barry!?" Cisco explained saying "It means that Barry is alive, but this Killer Frost has taken control of his body. If we can somehow find a way to lock away or get rid of Killer Frost..." "Then we can get Barry! Alive and well and in control!" Caitlin finished, understanding what Cisco was saying.

"That could work..." Dr. Wells began, cutting off the wishful thinking between the ones who knew Barry best, much to the annoyance of the three of them, before continuing as he pointed out the potential flaw in the plan "...but how are we going to find our frozen fiend and stop him? He no doubt is ell hidden and will try to stay that, and as we saw tonight he can easily take down Miss Snow here with little ease with his cold powers, regardless if you get the advantage over him or not."

"We'll deal with it if it comes down to that...though I hope it doesn't." Caitlin soon said, looking directly at Cisco as if volunteering him to help out. "We? You're asking me to come with you?" Caitlin nodded and said "If I can't through to Barry through talking to him, I'll need your help in capturing him so we can try in here...I just hope it won't come to that..." Joe soon says to that "Are you sure that's wise? The last time you two spoke didn't end well..." referring to the night Caitlin and Barry got into an argument at the party, but his words would not dissuade Cait from her choice.

"I know that Barry is in there somewhere, and I'll bring him out even if I have to take another icicle to the leg to do so. I won't sit around and let him become a murderer when I can do something about it. When we can do something about it." Joe soon nodded to that slowly as he says "Well...if you are going to try it...I think I know one place he may be hiding out..."

Author's Side-Note: If you are curious as to what Barry's version of "Killer Frost" is in more detail, at least in looks: imagine him as a combination of Savitar Barry Allen with half his face burnt and darker choice in clothing, and Season 3's 2024 Barry Allen with the long hair. Also, I want to apologize that it took a while to do and if it's not very good, as whilst I did have the chapter planned out, writing the planned version was a lot harder then I thought it would be when it came to it, plus I had a major writers block when I tried to write it out at times on numerous times.

I promise I will try to get Part 2 as quickly as possible, but I can promise that things start to get very complicated and emotional when the team try to bring back Barry...will Caitlin and be successful in bringing back Barry from within Killer Frosts frozen heart? Or will Killer Frost manage to get the upper hand over her and Vibe? Well...you'll just have to wait and see.....