There is an another chapter! Good reading.

Chapter 3

For days, Alex had been looking for his sister Kara, with no results. And it is on another Earth that she succeeded. And what she saw under eyes, she was not prepared. She saw her sister, dressed in a dark dress with, instead of her kryptonian family emblem, the symbol of a skull surrounded by tentacles. And she fought a whole band of heroes who faced her. Distraught, Alex rushed to the battlefield.

"Kara! Kara!"

The kryptonian repelled the attacks of the Avengers, one by one. The Asgardian Thor brandished his hammer and sent it straight on her, propelling her back. Half sounded, Kara got up painfully, to be beaten by the giant green Hulk. The latter pressed his huge fists on Krypton's daughter, pushing her to the ground, under the plaintive gaze of Alex.

Kara eventually jumped a phenomenal jump, surprising Hulk, and flew away from him. She arrived at Steve Rogers. The latter sent him his right shield over his head, but Kara grabbed her by the way and sent her back to her master.

Alex took the opportunity to run towards her.

"Kara! Kara, stop!"

Elder Danvers came to stand in front of her sister, who was still looking at her with an empty expression.

"Kara, it's me, Alex! I'm here! It's Alex! What are you dressed as?"

Kara had no reaction to the sight of her adoptive sister. As for the Avengers, she looked at her with a cold face, to Alex's astonishment.

"Oh, Kara! What the hell did they do to you?"

Then the Kryptonian catches Alex by the throat lifting her off the ground. Elder Danvers was doing everything to get away, but her sister had too much grip on her neck. She felt her breath leave her.

"Kara… Please… don't... don't do that... I can't… breathe.…"

Then came Captain America who threw himself on Kara, immediately releasing Alex. She took the opportunity to catch her breath as she watched her sister fight the Avenger.

Steve managed to send a big punch in the kryptonian's jaw, pushing her back. He wanted to hit her again in the face, when she grabbed his fist and twisted him. Captain America groaned in pain as he struggled to free himself from his huge, massive fist.

Thor brandished his hammer again and smashed the floor, throwing powerful thunderbolts that threw Kara away from Steve Rogers. Iron Man joined him.

"Who is she?" he asked the God of Thunder.

"I have no idea," Thor replied, intrigued by the colossal force of kryptonian.

"So she doesn't come from Asgard?"

"No, this is the first time I meet someone like her."

Black Widow joined them, staring at Kara, who was still nailed to the ground by lightning.

"Why would someone like her associate with Hydra?" she jerked.

Steve Rogers got up and picked up his shield.

"We'll know it soon," he said, wanting to prepare for the fight.

Alex, who had just caught his breath, got up, massaging his neck.

"Wait! Wait!"

Kara had just got up and looked around. All Avengers and Alex were standing close to her.

"You will all die, in the name of Hydra!" she chanted.

And at her words, she clapped her hands, causing a powerful shock wave that propelled everyone back, destabilizing them.

Alex stood up and ran towards the kryptonian.

"Kara! Recover your sens! I don't know what happened to you, but I know you're not yourself! You have to fight! I'll not let you down, because you are my sister and I love you!"

Kara still looked at her with an icy expression.

"Kara Danvers is gone! She's dead! I only exist to serve Hydra!" she scolded with an inhuman glance.

"No!" exclaimed Alex, horrified.

She used her heat vision to blow up a whole barrel of oil. The explosion that followed sent a shockwave through our heroes again. Kara flew into the air. Hulk began to jump like a missile into the sky, in order to reach his enemy, but the Kryptonian was faster than him. She grabbed Hulk by the hand, and sent him to the ground. The landing of the green Goliath on the ground caused a huge earthquake.

The few remaining Hydra soldiers fled at full speed.

Alex stood up again to see Kara fly into the sky, looking helplessly.

"What happened to you, Kara?" she exclaimed, in a broken voice.

In shock, she remembered the scene of the bar, where she had thrown horrors on her sister. If only she had not been so violent in her remarks, nothing of the whole situation would have happened.

It's my fault! It's my fault!

Then, wanting to get out of his stupor, Alex decided to move… to be surrounded by the Avengers. Iron Man was standing in front of the young woman, her repulsors in her hand ready to fire. Hawkeye waving his bow on her. Captain America, Black Widow and Thor standing close to Alex, suspiciously.

Not allowing herself to be dismounted, she retorted dryly, taking out her pistol:

"Let me go!"

"Not until you answer our questions, little lady," said Iron Man.

"Who are you?" asked Steve Rogers.

"It's none of your business," Alex retorted, still in a dry, icy voice, holding his gun in his hand. "I have no time to lose with you, whoever you are!"

The Thunder God hastened to add a harsh voice:

"We neither, we have no time to lose. And you have no idea what you're dealing with!"

Alex didn't lower his gun and remained cold:

"I don't care who you are. I have nothing against you. I want my sister!"

"You have no chance against us! Lower your weapon," said Black Widow in a calm voice.

"And if I refuse? What are you going to do to me? You're going to order your green Goliath to crush me like pancakes?" retorted Elder Danvers, pointing to Hulk, who was hitting on Hydra vehicles. "Or it's the built like a wall with the hammer that will strike me?"

"You don't really know who you're talking to," Thor said, feeling insulted.

"Let's say I'm not from around here. I come from far away!"

"Where do you come from, little lady? Iron Man asked. "Canada? Australia?"

"Not exactly, it's a bit more complicated! And don't call me little lady, metal man!"

Steve put down his shield and spoke in a calm voice, raising his hand with a sign of appeasement.

"Listen, ma'am, we don't want to fight you. We are looking for a weapon that Hydra holds. Where is it? And who is this girl who attacked us?"

"Yeah, I'll give you one better question. What's that the Hydra?" Alex retorted, still chilling,

"Are you serious?" exclaimed the astonished voice of Iron Man. "You're not from Hydra? Where's the Loki's scepter?"

"I don't know what you're talking about!" Alex scoffed impatiently and frustrated. "I don't care about your business. I want my…"

"…sister," Hawkeye finished wearily, "Its understandable. So, what are you doing here?"

Before Alex could retort again, several explosions shot out of nowhere, barely touching our heroes. Kara was flying through the air and using her thermal vision to destroy any facility that could cause dangerous explosions.

Alex took the opportunity to slip away quietly, while the Avengers mobilized to fight back. Thor leapt into the air and threw his hammer that hit Kara in the chest propelling her away into the trees. The Asgardian raised his hand and called his magical weapon which returned to his grip. He went in the air looking for kryptonian.

While Iron Man turned to his companions.

"Whoever this flying and super-strong girl is, she ran away with the people of Hydra," he said.

"They had to send it to us for a diversion," Black Widow added. "Against whom one fights?"

"The only one who can give us answers is this red-haired woman who seems to know her well," replied Steve Rogers.

"You think the flying girl is her sister?" asked Natasha, suspiciously. "If the blonde is almighty, the redhead should be too. Why did she fire a weapon?"

"She may be her sister," Hawkeye replied, "but not like her. Otherwise, she would have attacked us like the other girl."

"Great," retorted Iron Man, "but we still do not know who we're fighting against."

Thor came back to them, landing on the ground.

"I lost her. She was flying north. I don't know who she is, but what is certain is that she doesn't come from Asgard, I swear. We have to do something else. And the red-haired woman, did you get anything off her?"

"No, she's disappeared like Houdini!" replied Tony Stark.

"You think she doesn't come from Hydra?" asked Clint Barton.

"I saw her eyes," said Natasha, "She really didn't seem to know Hydra. She wasn't lying about that. And it is clear that she wasn't interested in us."

"And it's also clear that she did not seem to know us at all," Steve added, shaking his head."The whole question is there, who are these two women and where do they come from?"

After siding with the Avengers, Alex had snuck into the old Hydra base, now abandoned. She had traveled all the corners of the abandoned place in the hope of finding a track that would lead to Kara, without results. She came across torn and burned paper documents. The occupants of this base were eager to remove any trace of their passage. Who these people were, they were professionals. No imprint, everything was cleaned so that we did not go up to them.

Distraught, Alex landed on his knees, eyes upset. Not only did she not know what had happened to Kara, but her sister was still missing once again.

How to find her?

As Alex meditated in his thoughts, a voice echoed throughout the place:

"I'm afraid that the answers that you're searching for won't be found in here."

Fast as lightning, Alex got up and waved his weapon right in front of her.

"Whoever you are, I am armed!" she warned, in a threatening voice. "Show yourself!"

A figure emerged slowly, and she could see a black man wearing a leather blouse. The man was bald and wore a black cover on his left eye. The man was serene and remained calm.

"Who are you?" Alex retorted coldly. "And what do you want?"

"Relax, relax," said the man, with a soft voice. "If I had wanted to kill you, we would not have this conversation, you and me. You can put away your weapon, Agent Danvers. I'm not your enemy."

Stunned, Alex stared at the black man, eyes wide with stupor.

"You know who I am?" she said, shocked.

"Alexandra Danvers, you come from another Earth different from ours," calmly replied the man, as if nothing had happened. "I also know about your sister. I've known about the multiverse a long time ago, and you have no idea how many extraordinary things I've seen in my life. Put away your weapon, Alex. As I told you, I'm not your enemy. I'm coming to help you find your sister."

Alex lowered her weapon, without soothing her mistrust. She wasn't going to trust the first comer who claimed to help her.

"Who are you?" she said, and give me a good reason to believe you.

"My name is Nick Fury. Not long ago, I was running a government organization called SHIELD that was responsible for protecting our country from all kinds of terrorist and extra-terrestrial attacks. We were the largest military power in the world. In recent years, we have had to deal with the increasing number of people with amazing powers and visitors from other worlds. Two years ago, our city of New York ended up being the scene of an alien attack, and to solve this problem, we had to train the Avengers' team. These are the superheroes you just met a few moments ago. Following this battle in New York, our organization became known around the world. And recently… We learned that SHIELD had been infiltrated by Hydra, which forced us to dissolve our agency in order to eradicate this organization."

"What is it, the Hydra?" asked Alex.

"A terrorist organization that has existed since the Second World War. They have been trying for decades to find weapons of destruction that can enslave the world. And since the Hydra became aware of the multiverse, their scientists want at all costs to seize all unknown technologies to create powerful and lethal weapons. They are the ones who hold your sister. They managed to enslave her and use her as a weapon. A weapon against the Avengers. And after, they will seek to dominate our world with the help of your Supergirl."

"And how could they enslave my sister?" asked the suspicious girl. "I know Kara. She would never bow to Nazi terrorists in her full sandstone."

"In addition to your sister," Fury continued, "Hydra also has a weapon from another world that is Loki's Scepter. A weapon able of handling any spirit."

"You just told me that you dissolved your SHIELD" retorted Alex, "so you don't control anything anymore. So how can you know all that?"

"You're right, Alex," the black man replied simply. "I'm only an old man who no longer directs anyone. Nevertheless, I continue to keep my eyes - at least, my only still valid eye - on anything that threatens our country and our Earth. I'm an old man who still has a lot of resources. Nobody knows where to find me. Neither my government nor the Hydra. Not even the Avengers. I'm a ghost in the eyes of the world."

"You say you want to help me find my sister. How can I find her?"

"If you want to save your sister, you will need help. Go see the Avengers. They will help you save your sister from Hydra."

Nick Fury slowly approached Alex and handed him a piece of paper. She took the paper and read the word on the paper.

"Go to New York and go to that address. That's where their headquarters are. Tell them for you and your sister. You will have a chance to save her. I'm just an old man who has withdrawn from everything."

And he walked away from Alex, as if nothing had happened.

"Wait, you still have not told me why I would trust you," said the suspicious young woman.

Fury froze, and turned his head back slightly.

"You've no reason to trust me or to believe me," he replied. "I don't lead anything anymore, but my mission to protect the world hasn't changed. If your sister stays in the clutches of Hydra, many innocent lives will be in danger of death. As well in my Earth as in yours. Think about that, Alex."

And he just left, leaving Alex, alone and dazed.

She remained motionless for a moment, meditating on what Fury had just taught her, and decided to leave the old Hydra base.

After finding an abandoned motorcycle near the base, Alex rushed to the big city of New York, following Nick Fury's instructions.

She asked her way to a mustachioed old man on a street in New York.

"The Tower is on your left, all in front of you. You can't miss it," replied the old man.

"Thank you very much," Alex replied kindly.

"You will join the Avengers to save the world?" said the old man, rather astonished.

"We can say that," Alex said simply starting his motorcycle.

"I wish you good luck, my child," said the old man, walking away with a big, friendly smile. "And you know… I guess one person can make a difference. 'Nuff said."*

Alex looked at the address on the paper and finally discovered the great Avengers Tower.

She returned to be welcomed by a certain Maria Hill. She asked to see the Avengers, told her about the Hydra base and Kara. Immediately, the secretary led her to the superheroes.

Tony Stark stood with Steve Rogers, Bruce Banner, Thor, Natasha and Clint Barton, discussing how to trace Hydra, while trying to find out the identity of the mysterious super-powerful girl who had attacked them. They received Maria Hill who brought Alex back to them.

Surprised, the Avengers looked at the newcomer. She was no longer the cold woman they had met. Alex had a look upset and distraught.

"My name is Alex Danvers. My sister's name is Kara. And I need your help to find her. Help me, please,"she said with a supplicating look, full of despair.

* A little cameo from Stan Lee. A great tribute to this man who made us dream with his heroes. R.I.P. Stan Lee!

By the way, I'm coming to post the first chapter of a crossover story between Arrow and Avengers. This story takes place at the same time as Sister's Duty! I wanted to introduce Flash and Arrow into Avengers, so I decided to do it. Both stories are related. I will put some references!