Just watched the Invasion! crossover of Arrow, Flash, Legends of Tomorrow and Supergirl and realized it could be nice to write a fanfiction as a sequel for it. Takes place between the end of Invasion! (Part 3) and Flash 3x09 and will have many elements from Smallville, such as Golden Kryptonite and Superman's partial backstory.
Important: It's not a Barry x Kara romance fanfiction and probably will not be since I don't like the Karry parring, but will have major focus on their friendship.
Earth-1
Even since Kara left, Barry had been worried about her for some crazy reason. What are you worried about? She's indestructible! He tried to convince himself, but if anything Barry had learned within the years was to trust his instincts. A few days after the Invasion thing, he was still fighting crime around Central City - luckily no metas had attacked since, and there was no clue of Savitar or Alchemy. And that was really getting him mad: not having anything to keep his mind busy proved to be even worse than some psycho trying to kill or rob someone.
"Barry!?" Barry jumped as Cisco's voice suddenly popped out of nowhere. He quickly noticed Caitlin, Joe and Iris were there too, and everyone was looking at him. "Whoah, calm down bro."
"What happened?" Joe looked strangely at him. Of course he, along the others at S.T.A.R. Labs, had noticed Barry's strange behaviour since the aliens left, but they all assumed it wasn't a big deal.
"W-Wha..." Barry quickly headbanged and tried to give them a reassuring smile. "Ah, it's not. Sorry guys, I'm not exactly here right now"
"Yeah, no kidding. I've been calling you for five minutes" Cisco said. "I was talking about Sav-..." Before he could even finish talking, a sudden and continuous BIIP! sound started from his pocket. "Hey guys, it's Kara" He said, taking off a device just like the one he gave her. "It looks like she's i..."
Before he ever finished talking, Barry and the device had both disappeared from S.T.A.R. Labs. "...n trouble. Hey, what?"
Earth-38
Kara Danvers woke up feeling good. In fact, better than she had felt since leaving Earth-1 a couple of days ago, and it looked like a great day in National City. Unfortunetly for her, though, nobody told Lex Luthor how great her day was supposed to be. At first it was normal stuff: bad guys messing around and she stopping them wherever they were, but Kara should already know things are never so easy. And so she found herself in this new and utterly hard situation, powerless against an improved version of Metallo.
"Who the hell are you?" She barely managed to ask. Unlike John Corben, this Metallo-like thing was barely human; his skin was kryptonian metal, strong enough to easily stop any attack she could land on him. His eyes were red, like a robot, and his kryptonite heart wasn't green: it was golden. At first she didn't even realize it was kryptonite, but right now she could barely stand up. It wasn't anywhere close to the green kryptonite she was used to fight. Just being there was enough to hurt her, her skin felt like it was on fire. Perhaps running into a battle without a plan wasn't so smart afterall.
"Kara!" Winn's voice spoke. "Get out of there! This guy is like the Metallo dude!"
No response from "Metallo". Kara tried to get away from him, but wasn't fast enough anymore. A punch hit her like a train, sending Supergirl through a brick wall. Under normal circunstances it wouldn't even scratch her, but when kryptonite was involved... Even knowing it would hurt pretty bad, Kara's eyes widened as she felt the blood coming out of her mouth. Before the kryptonian could even try to get up, a kick sent her through another wall. This time she fell from the 6th floor and her body crushed a car under it. People around immediately turned their attention to the falling Supergirl - her D.E.O. contact device should have been damaged through the impact, since she couldn't hear Winn's voice anymore. Kara gasped and quickly rolled left as she saw the improved Metallo jump from the hole she fell from, barely managing to avoid being crushed as the robot finished crushing the car. It sent a shockwave strong enough to knock down some of the closer people around, while others ran away.
"Kara Zor-El." Finally the thing talked. It's voice was obviously from another person, but Kara couldn't pay attention as she stumbled to get up. Her flesh was red and hot, most likely from the golden kryptonite radiation. "Your days as Supergirl are over."
Even barely able to stand up, Kara forced a smile as she clenched a fist, gathering all of her remaining strength - what wasn't too much, but a well done punch should be able to do the trick. At least this guy wasn't able to fire kryptonite radiation beams. As she started talking, Kara did the only thing she could think and sent a call to Cisco through the breach device she was given by him, hoping Barry wasn't too busy to save her ass. "Oh, so you can talk - and a lot. What is taking you so long, prick?" She mocked, trying to get whoever who was behind this robot dude angry. Well, it worked. The Golden Metallo - sure, it was a shit name - immediately stepped ahead and punched her. Kara staggered away from his fist and punched. She knew there was no defeating this Metallo without attacking his weakspot. It would hurt, and it would leave her sore and powerless for days, but she had to do it. So Kara did: as hard as she could, her fist hit his Golden K exposed heart and cracked it. Metallo's red eyes blacked for a few seconds and the robot guy fell back, but Kara couldn't contain a painful scream as she fell to her knees and grabbed her arm. Her hand was at raw skin, and she felt like her entire arm was broken. Kara had never felt so weak, so human, before. And for her horror the Golden Metallo slowly started getting up, his cracked heart not enough to put him down.
"Well thought, but it's useless. As you can see..." Metallo approached her, Kara didn't even try to get away. By now a helicopter was flying over the street and people gathered around at a safe distance. She could only hope her cousin or Jon would be quick enough to save her. "... Luthor gave me more than a few tricks. Even if you live through, you'll never ever be Supergirl again." He must have noticed her eyes on the sky, because there was a half smile on the thing's face as it - right now this Metallo was nowhere close to be a "he" - raised it's hand, the metal fingers merging and the entire arm shapeshifting into a chainsaw. "Don't bother yourself, I've sent someone to take care of your friends at the D.E.O. and your stupid cousin. There's no escape this time."
"Don't be so sure, canned brain" A very familiar voice came from her left as Kara was about to lose hope. Before they both could even blink, Metallo was sent sideslipping, it's heavy feet leaving a deep destruction trail on the concrete sidewalk. "Ouch, that hurts" Barry materialized in his Flash suit right where Metallo was previously standing, massaging his hand, sore from the obvious punch he landed on the evil robot. If it wasn't for the Speed Force currently protecting him, Barry was sure he would have broken his arm.
Kara gave him a weak smile, momentarily ignoring the pain. "You're late" Though she said that, Kara was relieved. For a second she really thought she was going to die.
"I'm sorry" Barry looked worriedly at her, noticing the blood on her Supergirl suit and the red skin. The worst thing was her left fist, right now at raw skin, as if she had just tried punching a tank. "What's that?" But Barry barely could ask that before Metallo finally realized what had happened and tackled the speedster like a train. Well, Metallo tried, because a second later Flash wasn't there anymore. A lightning spiral started as Barry easily wrapped Metallo's body. The robot trials at punching and kicking him led him to nowhere. A second later Kara materialized on her apartment. "I'll be back"
"Where are you?" It took Metallo a few seconds to realize Flash had disappeared. Barry knew what he had to do - he noticed the robot's golden heart, and quickly realized Kara was attacking it since it was already cracked. A sudden lightning spiral started once again, but this time a few meters alway from Metallo. The robot quickly ran towards the spinning Barry.
"Take that!" Electricity gathered as the robot approached. The speedster suddenly stopped running and tossed the lightning bolt at Metallo's heart, who flew back upon impact. The metal skin proved to be a major weakness against him as the electricty kept Metallo long enough for Barry to run away - as did his body, his mind also fast. The memories of Kara's face and the blood covering her. It's just a robot Barry thought, trying to convince himself it wasn't killing since the thing wasn't even alive. In a second he was running back to Metallo. A strong BOOOOM! shattered windows as his body reached supersonic speeds. Mach 1, 2, 3... he could feel every single molecule on his body as the Speed Force ran through them just like he ran through the streets of National City. Metallo's body zoomed into view, this time with his golden heart covered for protection, but Barry didn't slow down: he remembered Eobard's words as Harrison Wells and vibrated his molecules, phasing through the kryptonian metal protection and shattering the already cracked golden kryptonite with such a powerful punch, it sent shockwaves and collapsed power poles all around the place. The helicopter flying above oscillated.
Barry's body phased right through the now "dead" robot's and the Flash fell to his knees, holding his hand. Even with the Speed Force absorbing most of the impact, punching kryptonite at such speeds proved to be not a very good idea, since his fist was most likely broken. And it hurt. A lot. But right now Barry couldn't lose his time. Quickly getting up, the Flash looked around and ran back to Kara's apartment.
"I'm back!" Half a second later he phased through Kara's door, but immediately regretted that as the girl right now was trying to change from her Supergirl suit. At least she hadn't removed her bra. "Oh my god, I'm so sorry!"/"Barry!" Both them yelled at each other, Kara dropping the white shirt she was trying to put on and Barry looking away, as they got a massive blush.
"Sorry, should have knocked" Barry said, forcing himself to stare at the door. "I'll wait outside"
"No, wait!" The kryptonian almost yelled as he stepped towards the door. As he stopped, still refusing to look at her, Kara blushed again. "Actually I'm having a real hard time getting dressed, can you... y'know..?" She opened her arms, clenching her teeth at the pain on her broken arm.
Barry blushed also, timidly looking at her - and trying to keep his eyes on her face - as he realized what she meant. "Oh, of course" Coughing he disappeared and a lightning bolt circled her as the white shirt seemed to materialize on her body. Once again Barry was standing in front of her, this time without the mask to cover his face. "Just for the record, I didn't sneak peek" He said, remembering a very similar episode with a drunken Caitlin.
"W-What?" Kara looked strangely at him, blushing at the thought.
"Forget it." Barry rolled his eyes, laughing at the memory.
An uncomfortable silence filled the room and Kara sat down on her bed, but winced as she moved her arm too quickly. It was pretty unusual for her to be still so weak since she didn't shatter the kryptonite. Barry noticed her painful expression and instantly appeared besides her. "Kara, are you fine?" Are you fine? Really? Just look at her, you idiot He shook his head at the thoughts. He knew she wasn't fine, but he had to hear that from her mouth.
"D-Don't worry Barry, it's nothing I-..." She clenched her teeth at the sudden pain as she tried to shift in a more comfortable position. With her kryptonian powers usually making her almost invulnerable to anything, Kara wasn't used to feeling so weak, let alone feeling pain.
"Stop moving!" The speedster managed to say that without yelling, but he couldn't help himself. Kara always seemed so strong and indestructible, and seeing her like that was just killing him. "Give me your arm"
At first Kara would deny it, but Barry had that look on his face - the same he had whenever someone could get hurt because of him. She had another painful expression as he carefully took her arm. It was obviously broken, but the worst part was her hand. The sight of raw skin almost made Barry look away, but he didn't at first. "Huh..." Kara muttered, suddenly remembering Winn and Alex at the D.E.O. "Barry! The D.E.O. was attacked! My cousin, we hav..."
"Kara! Calm down!" His voice cut hers. "I know you're worried, but right now your entire left arm is broken, probably you have other wounds and your powers are gone. Just sit down and get some rest while I get something to help"
In this exact moment, Superman chose to show up - and not in the usual way. The glass of her apartment shattered as the Man of Steel invaded her room, Barry barely managing to avoid a very powerful punch. "Kara!" Clark's voice sounded much deeper than she remembered. "Are you okay?! They attacked me, sorry, I..." His gaze stopped upon her exposed arm and hand. "Oh my God"
"Kal, don't worry! I'm fine, really" She tried to smile, but her cousin was having none of this. He looked directly at Barry. "And who are you?"
"Huh, sorry sir, I'm Barry Allen... uh, the Flash... the fastest man alive?" Barry extended his arm for a handshake, which Clark suspiciously accepted, though the confused look on his face.
"And what exactly are you doing in my cousin's room?"
This question caught him by surprise. Barry looked at Kara from the corner of his eyes and noticed the blush on her face. "Err... It's not what you're thinking, we were not... you know..."
Kara's blush deepened. Before Barry could continue embarrassing them, she quickly interrupted him. "Calm down, Kal. I was attacked by another of this Metallo dudes, but this one..." She raised her hand, but quickly had to put it down. "He was different. I'm not even sure it was a he, the thing is, he had somekind of golden kryptonite in h-..."
"Golden kryptonite?" Superman interrupted her with a worried expression. "Are you sure?"
Barry picked this moment to remember them he was there. "Yes, though I'm not sure what this kryptonite thing is. Now that I think about it, how did this guy even hurt you Kara?"
"Ahn... kryptonite is basically the only thing on this world able to hurt me." She looked at Kal, not able to explain exactly what it was.
"It's more than that. Kryptonite are pieces of our home planet, Krypton. I'm not sure how it happened, but somehow pieces of Krypton that were exposed to cosmic radiation. When we kryptonians are exposed to it, we lose our powers, become weak and eventually can even die" Apparently Clark's nerd side was speaking up again. "But if it was golden kryptonite..." The look on his face was both worried and saddened. "Kara... did you let him touch you?"
"Ahn..." Kara looked nervously at him. She had never seem Clark so serious, and punching kryptonite hadn't been one of her brightest ideas. "Maybe... I have punched his heart." She noticed his expression change and quickly asked, not really wanting to be scolded by Superman in front of Barry. Said speedster was nowhere to be seem right now, she realized. "Why? Why is golden kryptonite so special?"
His face softened again. Her relief lasted no longer, though, as she heard her cousin's next words. "Golden kryptonite is different. It's not a natural thing, but instead it was created... by Lex Luthor" Oh-oh. If Luthor created it, it explained why the kryptonite looked so more dangerous. "Being exposed to it's radiation usually as hard as green kryptonite, but the real problem is at the touch. Kara, listen to me very carefully" As he said that, Barry entered the room again with some things, but she wasn't really paying any attention to him right now "There's no easy way to say that. Whenever a kryptonian touches it, their powers are gone for good."
At first, Kara didn't really understand what he had said. She just stared at him. Barry looked with a saddened face, remembering the two times he had lost his own powers. First Blackout, then Zoom. And on both occasions he felt like the whole world had been suddenly taken away from him. Now seeing Kara's lost expression, he realized there was no way he could just stand there and let it be.
"W-What...?" She finally managed to stutter. Her gaze went from Kal to Barry, then Kal again. "You're not serious. You can't be"
"... So sorry, but it's the truth" Clark stepped ahead and hugged the girl. "From now on, you'll never be Supergirl again"
First I would like to apologize if the fight scene was totally terrible or too short, but I'm not really worried about battles. Well, at least not right now, but in future will have focus on them too. Also, it would be really nice of you to put the grammatical errors you noticed on the reviews, so I can correct it. I'll most likely have many errors at the beginning, and I'm sorry for that - my native language is brazilian portuguese, but I'm currently writing fanfictions cause I'm gonna move on to England within a few months. Thanks everyone,
