Hi everyone! So I decided to write this story because... I don't know why actually, I just had an idea and thought I'd explore it. My first language isn't English but don't worry I have an amazing beta (Janto4eva) that is doing miracles for me.

PS.: This first chapter happens in Legends of tomorrow. It can be considered all the facts of season 1 and 2 till the last talk between Rip and Sara on 2x17.

Chapter 1 - So It Begins

Central City, California – November 20th, 2021

"Everyone back to the Waverider, now!" Sara screamed to the others.

Once inside the ship the group was torn. Each one of them was tired, devastated or in shock.

"We need to go back there!" Amaya yelled, trying to leave the ship once again. She groaned in frustration as Mick held her waist, making it impossible to move.

"We can't. They're gone." Sara said with tears in her eyes.

"Who's gone?" Jax asked, entering the room and immediately starting to look for Professor Stein. He had stayed at the Waverider to make some repairs to the ship and didn't know what was going on.

"I'm sorry, Jax." It was all Sara could say to him.

"Cobalt Blue killed Nate and Professor Stein," Ray said quietly, causing Amaya to cry even louder.

"No! It can't be!" Jax said desperately, "No, no, no!"

"We're all really sorry, Jax." Ray soothed.

"You don't understand! It's not just them who died. I'm as good as dead now too." Jax yelled, both worry and hurt making him lash out.

"What are you talking about?" Sara asked alarmed.

"I wasn't always the second part of firestorm. There was another one before me."

"Hum… Ronny, right?" Ray questioned, remembering the name coming up when talking to members of team flash, and occasionally from team arrow.

"Yeah, and when Ronny died Stein only had a few months to find someone who could merge with him before was too late."

"So it will happen to you if you don't merge with someone else," Ray completed for him.

"So we just have to find someone to merge with you," said Sara, making it sound so easy.

"It's not that simple. He was lucky to have found me. I was the only who was enough of a match."

"There's when I come in," said a voice, as its owner entered the room.

All five legends went into a defensive mode. In front of them was none other than the ex- Ra's al Ghul, Malcolm Merlyn.

"What are you doing here, Malcolm?" Sara asked, ready to attack.

"Okay. Maybe you could just listen to what I have to say," came the bored reply, as Malcolm mockingly raised his hands in the air.

"What would you possible have to say to us?" Amaya said with rage, ready to unleash the anger at loosing Nate at their common enemy.

"What if I knew how to save all your friends, including Mr. Heywood and the Professor?" Those words stole the attention of everyone in the room, except Sara.

"How? Going back in time to save them?" She said sarcastically, as if she hadn't thought of that herself, they were in a time ship after all, but Rip had warned them about going back and meeting themselves.

"Nope, that wouldn't be any good. Cobalt Blue would still kill them."

"So how?" Amaya said interested, the tears having stopped at the thought of saving the man she was falling in love with.

"Stopping Cobalt Blue," Malcolm replied nonchalantly, like it was the easiest thing in the world and causing every legend to laugh mockingly at his ridiculously obvious statement.

"I should inform you that we already tried to stop him… multiple times… but it's not that easy." Amaya said losing her optimism.

"No, no, no," Malcolm said walking in front of them, "I'm talking about killing him when he is still a baby."

"You want us to kill an innocent baby?" Ray asked, seeming outraged.

"A baby yes, but can you say he is innocent? Look all that he has done?"

"And what's your gain in all this? From what we knew you were supposed to be on the same side against us," Mick stated, speaking for the first time.

"I don't like following orders," Malcolm said simply, shrugging.

"Why don't you do the nasty job, then?" Ray asked, not trusting that the man didn't have a hidden agenda.

"Let's just say that I am too involved," he countered.

"How so?" Sara asked, but the man remained silent.

"Maybe we don't need to kill." Ray suggested. "We could pull him out of the time line..."

"It won't work. People like Cobalt Blue have some psychological issues… and anyway the time line would be damaged either way."

"Even if we accepted this, we don't have any idea of who Cobalt Blue is," Sara pointed out.

"That's not a problem. His name is Malcolm Thawne." Everyone in the room looked at him, but he pretend not notice as he carried on, "He was born in May 13, 1989."

He took a piece of paper from his jacket pocket and handed it to Sara.

"Here's the address. And if you want my advice I'd kill the mother before the labour. I think it would be easier," he suggested.

"You can't really be considering killing a baby," Ray questioned Sara but the blonde just ignored him and left the room.

Nobody realized that Malcolm Merlyn had left the ship.

I think we should vote," Sara said coming back to the room. She had needed some time to thing without being constantly questioned.

"So you're considering it," Ray said, surprised.

"Yes." She replied simply.

"It was you who said it. We don't kill," Ray responded, confused.

"Maybe we should make an exception," Sara snapped, not looking at Ray, "It's not like I didn't kill before."

"How can you trust Malcolm Merlyn? He could be lying," Ray tried again.

"Gideon?"

"Yes, Captain Lance?" the AI responded.

"What do you have about Cobalt Blue?" Sara asked.

"Cobalt Blue's first appearance was in Fallville, Iowa in 2007 when he killed Dr. John Gilmore. His first register in Central City was in 2019. He's powers are energy projection, energy construct creation and power absorption. The source of his power is unknown."

"And what we have about Malcolm Thawne?"

"Malcolm Thawne was born in Fallville, Iowa by the hands of Dr. John Gilmore. His parents, Charlene and Hugo Thawne are con artists and thieves. His brother, Ba…"

"That's all Gideon," Sara said.

"If you allow me, Captain," Gideon continued. "I could say after analysing both files that Cobalt Blue and Malcolm Thawne have the same height and body construction."

Sara turned to face Ray. "You think that it's all a coincidence?"

"I vote yes," Amaya said and received an ugly look from Ray. "Don't look at me like that, Ray. All of us know what kind of monster that baby will become. If there was another way I would say no to this, but there isn't." All she could think about was that she wouldn't lose Nate like she lost Rex.

After that, all the legends but Ray seemed to share Amaya's thoughts. Jax needed Professor Stein back, Mick didn't have a problem killing, and Sara had the responsibility of a team.

"Let's go then," Sara said and they prepared to time travel.

Fallville, Iowa – May 13th, 1989 (7pm)

"It's pouring outside," Ray said.

"Yeah, where do you think they are?" Amaya said.

"I don't know. We need people in the house and at the hospital so we can inform each other when the labour starts," Sara started. "Are you okay, Ray?"

"I'm not going to stop you, but I will not be a part of this," Ray said adamantly, the others agreed.

"Okay, Ray. I know how difficult this is. You can stay on the ship and give technical support," Sara compromised. "Mick and Amaya, you will go to the hospital and see if the Thawnes got there first. Jax you come with me, we will go to Thawne's house."

"This city just has a small hospital and a Doctor's office. Guess who runs it…? Dr Gilmore. It ring any bells for you?" Ray spoke.

"Okay. Mick and Amaya, go there." Amaya nodded before they both headed off to the Doctor's office while Sara and Jax went to the Thawne's house.

It was very quiet inside and gave the impression that no one was home. Sara thought that maybe they had left already. She opened the door and started to look inside the living room and subsequently the kitchen. Seeing nothing there she went upstairs and started to check the rooms.

"Oh, my God!"

A woman's voice cried in the darkness. Sara didn't expect anyone to actually be home with it being so dark inside the house. She followed the voice and saw a very pregnant red headed woman on the bathroom floor.

When the woman noticed Sara and Jax she seemed relived, until she notice the knife in Sara's hand, and started to panic again. "Who are you?" she asked, scared.

"It doesn't matter right now," Sara spoke, trying to look menacing. Maybe Malcolm was right and it would be easier kill the mother instead. "Jax, help her."

"What do you want from me?" The woman cried, trembling with fear. Sara just stared at her without saying anything.

"Sara?" Jax said, "What are you thinking?"

"That maybe Merlyn was right."

"About killing her?" he asked, unsure.

"Yeah, I think it would be easier than the alternative."

"No, please!" The woman cried, holding her arms around her stomach, protecting her unborn child. "Please, I'm pregnant!"

"I noticed and that's kind of the reason why we're here," Sara said, feeling her stomach turn.

"I don't think I want this, Sara."

"Please don't kill me yet," the woman begged, crying even more. "Please, just wait a little more. My water broke so it won't be long for my babies' birth, please."

"Did she say babies?" Jax asked confused, directing the question to Sara.

"Did you say babies?" Sara asked, turning to look at the woman.

"Yes, I'm pregnant with twins," the woman said still crying.

"You definitely can't kill her, Sara," Jax said desperate.

"I know." This wasn't in her plan. She couldn't kill two innocent people. "I'm not going to kill you. But you are going to deliver here."

The woman stopped crying, taking a breath before yelling out in pain just a few seconds later. The contractions were getting closer together.

Just then, they heard a sound coming downstairs.

"What was that?" Jax asked.

"My husband."

"No, no, no," Jax said, starting to panic. "This was not part of the plan!"

"It's okay. Watch her while I take him down," Sara ordered, opening the door.

"Please, my husband is not going to fight you. He is a doctor, he can help."

"Let me clear something up for you. I don't want to hurt you, or him. I just want one of your babies," Sara said. The woman started to protest but Sara cut her off. "In the future one of your kids is going to be a very bad guy. You still will have one baby, and that is better than we thought at first. So I want you to understand that I will do anything to stop him, so please co-operate, then I won't have to do something I don't want to do." She was bluffing. She was never going to take so many lives, but it seemed to have the effect she wanted because the woman took a breath and managed to stop crying.

"I'll not tell him anything." Sara wasn't sure but she didn't know what to do to help her. The woman needed a doctor.

"Honey, are you home?" The man said coming into the room. "Who are you?"

There was an awkward silence for a few seconds before the woman said, "They heard me screaming so they came to help." The woman seemed to feel that Sara and Jax didn't know what to say and feared for her husband's life.

"Screaming?" The man said worried.

"My water broke," the redhead said with a sad smile.

"Oh, my God! I need to take you to the hospital!"

"No!" Sara said without thinking. "I mean, it's been a while since her water broke, and I don't think she should be out there in that storm."

"So we can go to Dr Gilmore's office, it's closer," the man said, ready to help his wife. However, Sara just gave a pointed look to the woman.

"Honey. I think she's right. I don't want to have my babies in the back seat of a car."

The man stopped for a few seconds then nodded. At the exact same time another contraction hit the woman.

"What do you need for the delivery?" Sara asked. The man told them all that they needed to find which Jax went to retrieve.

One hour later, a baby cry filled the room. Four minutes after that another cry followed the first one.

"Sara, I think we should follow Ray's idea and just pull the baby from the timeline," Jax whispered.

"Merlyn said..." Sara started.

"I know what he said, but I'm not comfortable with killing a baby even if he is going to be a bad person."

"Okay. Maybe you are right. Let's just get the baby and leave."

"Which is which?

"So, what are the names?" Sara asked louder so the man could hear.

"Bartholomew and Sebastian," the man said.

"What? You're lying!" Sara was getting mad.

"Of course not. Why would I?" He said. Jax would've believe him to be genuine if wasn't for Sara.

"She told you," Sara said simply and the woman cried again.

"Yeah, she did say that you two are crazy people who want to kill our son."

"So you lied about the names..." Sara said.

"I'm sorry," the woman said between sobs. "I needed to tell..."

"Nora, honey, you don't need to justify yourself." The man didn't seem to be afraid of Sara.

"Well, I think we just have one way now. We have to take both of you sons since we don't know who..."

"NO!" The woman, Nora, yelled.

"I promise you. We didn't lie about the names." The man seemed to be starting to worry.

"Nora? I thought her name was Charlene," Jax whispered to Sara.

"You are Nora Thawne?" Sara asked confused.

"No, it's Allen," the man said, trying to make the woman stop crying.

Sara sighed, furious, "I'm going to kill Merlyn!"

"Crap!" Jax said, sitting in the armchair close to the window.

"What Jax?"

"They're the Allen's… With their son, Bartholomew…." Jax began slowly.

"Bartholomew Allen," Sara completed.

"Like... Barry Allen." Sara exchanged a look with Jax.

"We have to go," Sara said, pushing Jax through the door.

"Really? You mean it?" The woman didn't seem to believe that after all that the pair were just going to let them go.

Sara was so sorry for what she did. She had terrorized this woman for nothing. Merlyn manipulated them and she had almost killed an innocent baby. What else had Merlyn lied about? She was so angry but she swallowed it and sat next to the Allens. Nora flinched but let Sara sit by her side.

"Nora, do you remember what I said about one of your sons?" Nora nodded. "I'm sorry for that, I was wrong, but listen to me now… One of them will be a hero in the future and you will be very proud of him."

Sara walked out, leaving a very confused couple, and a quiet Jax to follow. When they arrived at the Waverider Sara was immediately approached the second she entered the ship.

"Please, tell me you didn't kill a baby," Ray said, almost in panic.

"No, Merlyn lied to us," Sara said angrily.

"I know. I did some research. That house was the childhood home of Barry..."

"Allen, yes, we also know that."

"I was trying to contact you, but for some reason I was unable to reach any of you."

"I need to contact Amaya and Mick, tell them not to kill anyone."

"Too late," Ray said sadly. "Mick already did."

Sara stopped and looked at Ray. The silence that followed was depressing, and made the team feel terrible.

"We have to pick Professor Stein and Nate up in 2021," Ray said, trying to change the subject.

"Why 2021?" Jax asked.

"Our last location before Cobalt Blue showed up," Ray explained. Sara nodded.

"You know," Jax wondered aloud, when they came to the library, "I didn't know Barry has a brother."

"He doesn't," Ray said, receiving a questioning look from Sara and Jax. "Like I said I did my research. It doesn't give much information but Sebastian Allen was registered as an early neonatal death. It means he died from natural causes at any time during the first week after the labour."

Now the silence that followed was even worse. All they could think about was how guilty they felt about causing so much unnecessary pain to the Allens, and the fact that the family was about to live through another hell and didn't know.

Just to clarify, Malcolm Merlyn here isn't the same version that appears in the season 2 of LOT. Here it's the version of the future (2021).

So, I hope you like it, if you did please let me a review.