A/N: So, story is happening during the game Batman: Arkham knight.

SPOILER WARNING!

Even if I am just filling the gaps that aren't in the game and are made fully by me, this is the slight SPOILER WARNING:

If you haven't play the game or watched the walkthrough, if you do not wish to know anything about the game (altough I won't try to tell much, the only big theme from it is at the beginning as a flashback), then you please READ IT ON YOUR OWN RISK.

ALSO, the story might not be very clear to you if you haven't played or watched the game.

SPOILER WARNING ENDS HERE.

DISCLAIMER: I do not own Batman or Batman: Arkham series.

SUMMARY BEGINS HERE.

The story is happening when Batman locks Robin in one of his cages for the people that were infected with Joker's blood, so he wouldn't stay in his way. I will be describing how Robin ended up being captured by Scarecrow.

Enjoy, have fun reading and R&R!

He locked me up!

I can't believe this! He actually left me here!

Robin was walking up and down his prison cell, thinking how to get out of there. He couldn't call for help or escape for that was one of the Batman's cells and his communications were broken. He still couldn't believe that Batman was the reason that he was locked up. He couldn't believe that Batman himself locked him up.

The night was already awful when it started… With scarecrow clearing the whole town, then destroying it with his scare gas not to mention that his boys wrecked everything. But there were others too. The others like Two face, Penguin and Firefly.

Batman cleared most of the places they were trying to destroy or rob but he still couldn't find Scarecrow.

After many rejected questions, Robin finally had to help Batman and to him that was one sweet time.

But Batman just had to make it worse for him.

Not long ago, actually just minutes back, Robin and Batman were getting the infected back to their prison cell. They were almost done, just needed to get Harley and infected Galiot back to their cells and this problem would be solved. But then everything had to go to hell…

Flashback:

Robin and Batman were close to the cells, where they were supposed to drop off Harley and Galiot. As they entered the room Batman asked Robin to prepare the cells for them. Robin did what he was told and went towards the cell. The minute he opened it he froze.

There, within the cage, was a dead body of Christina Bell.

Harley screamed behind Batman, as she saw her. As she saw another of Joker's blood dead. As she saw her Joker dead once more.

Batman looked in the cell. His face darkened.

"Don't move, Robin."

As Robin looked at him he quickly figured out that Batman knows who is here to blame. And he was right.

"You killed them, didn't you, Henry?"

Robin turned his look towards the man behind them. The man has already changed. He was almost looking as Joker now. White face, red coloured mouth, green eyes… Even his laugh and talk were almost the same. Henry was holding a gun in his hand. It was locked up on Batman.

"Oh Bats. You're so easy. Desperate to see the good in people…"

He flipped his fingers and Harley ran up to him. Her Joker was back.

With Harley by his side Henry grinned devilishly.

"…especially when they're bad."

He threw his hands in the air and shouted.

"Honey! I'm home!"

Computer began the jailbreak protocol and opened up all of the cells. Within them there were dead bodies of blood infected.

Henry smiled and aimed the gun at Batman again.

"I guess we know who reprogramed your security. Now, if you would be so kind… go join your friend over there."

He showed him the way whit his gun as he locked it on Robin. Batman looked at him with anger.

"Go to hell."

Henry saw the resistance in his eyes and aimed the gun on Harley's side.

"Now."

Batman went and stand beside Robin.

"Evolution's a funny thing…"

Henry continued and laughed as he got closer to the unconscious Galiot.

"… no matter how many obstacles get in its way, the strongest always survives."

For a second he listened to Galiot's breathing.

"Still, you know, what they say about evolution?"

He stood up and aimed the gun at Galiot.

"Even amoebas can do it."

He shot. Harley flinched.

"What are you doing!?"

Henry didn't mind her. He just continued to look at Batman.

"Purifying the gene pool."

Batman was clearly getting angrier by the second. Hanry was getting closer to him, aiming the gun at his head.

"Goodbye. It's been…. educational."

As Henry was ready to shot him, he suddenly froze. The smile vanished from his face.

"Now… that's… unexpected."

He just watched him.

"You're going to be… spectacular."

Henry then aimed the gun on his temple and shot. He fell on the ground dead. Harley was immediately by his side, crying and shouting.

"No, no, no! Not again!"

As Robin looked at Batman, he saw his eyes… They were green as Jokers…

"Your eyes… You're the last Joker. That other cell's for you."

Batman looked at him with necessity and sorrow.

"I need to stop Scarecrow. When I'm done, I'm locking myself away."

That isn't right. What if he doesn't make it?

Robin looked towards the cell and then at Batman.

"What if you fail? You'll be too dangerous. I won't be able to stop you."

Robin walked towards the empty cell. As he opened it he looked towards Batman who was now at his side looking into it.

"You need to get in the cell. It's the only chance we have left."

Suddenly, instead of getting in, Batman pushed Robin inside, locking him up.

"What the hell are you doing!?"

Batman gave him a quick glance and started typing something on the computer on his arm.

"The right thing. Trust me."

He's doing the right thing? Locking me up? Yeah, right!

"You have gone crazy!" Robin shouted from within the cage.

"Listen to me! We can help you! You don't need to do this!"

Maybe Alfred can help me convince him!

"Alfred... Alfred? You… You cut my communications!"

Robin could only watch as the Dark Knight turned his back on him, locked Harley into another cell and went after Scarecrow. The last thing Robin was able to hear from Batman were his comforting words to Alfred, about Robin's communication device being broken.

The heck is broken! Batman was the reason that it didn't work!

And now he was alone in here, locked up with only Harley Queen being alive.

Oh, what a lucky me.

"Hey! Hey, birdbrain! Bust out will ya! Get me out!"

Robin rolled his eyes.

"Tell me, why should I do that?"

Harley looked at him with pity.

"Look, birdbrain, I won't just sit 'ere and rotten as Mr. J is about to come back from the dead. I want to be by his side. And you should let our little JJ out to, ya know? I think he would just love to watch his daddy being freed at last."

Robin glared angrily at her from within his cage.

"If you think, that Batman will just turn into him, you're wrong! He will do everything to try not to change. And in the end he will succeed."

Harley snarled at him and shook her head facing the ground. Then she looked at him in the eyes.

"Are ya sure?"

Suddenly the loud voice was heard. The elevator across the room began working. The sound was louder and louder as it was getting closer to the secret room.

Then silence.

From behind the gates there were slowly beginning to be heard silent sounds of walking. They were getting closer.

No, no, no!

Robin knew who they belonged to. He was nervously looking all across the cell to find some weak points but he was too late. The walking stopped before his cell. Now Robin was staring at the disfigured face of Scarecrow himself.

"Well, well, well, looks like the bird is in its cage."

Robin looked at him.

"How did you get in?"

As if he didn't hear him Scarecrow continued.

"That's easier for me, but unfortunately the cage is not in the right place."

Robin was looking him with anger.

"I asked you something! How did you get in?"

Scarecrow just smiled. Behind him something moved. As Robin looked closer, he froze.

Commissioner Gordon!

That answered all of his questions.

Scarecrow was now looking at the cell.

"Interesting structure… "

As he stepped closer to the Robin's cell a smile spread on his face. He found what he was looking for.

Scarecrow stepped towards the panel and called Commissioner Gordon to step up.

"Open the cell. Then we can begin."

Commissioner looked at Robin with sorrow and pressed the button. Glass that was blocking Robin's exit opened. Scarecrow pushed Commissioner out of his way and stepped towards the cell.

"Now, little bird, come out nice and easy."

Yeah, of course.

"If you think I'll just give up you're hell wrong."

Then Robin launched himself out and punched Scarecrow on the floor. He looked around the room.

"Now, this is too easy."

He put out his staff and the fight started.

Almost half of Scarecrow's men were defeated before Scarecrow silently got himself up and stepped in.

Robin didn't see him and before he knew it he was already on the floor. The ones that were down before quickly stood up and got hold on him, one at each arm and one on his back, pushing him down.

Robin smirked.

"All this effort for me? You shouldn't."

Scarecrow just smiled.

"I really hope you're more scared than what you're showing up to me. Once you'll be, yes, in that I don't doubt."

Before Robin could react, Scarecrow pointed the needle he pulled out of his costume into Robin's left arm. He let out a small scream. The liquid inside it was gone in almost a second. Scarecrow's men dropped him on the floor, where Robin dropped on his knees and clenched his fist as the pain inside the arm was growing. Scarecrow dropped himself on Robin's level.

"This is not scare gas, so don't worry for now. I simply intend to turn off your light for a while. Don't feel offended but my biggest scare is for someone special."

Scarecrow stood up.

"That someone is the world!"

As the words were said he rose up his arms above his head and looked at the ceiling above as if he was looking at the night's sky.

A silent chuckle escaped his mouth. Then a small laugh was heard across the room and his body flinched. Then the hysterical laugh echoed through the building as his body shook uncontrollably.

When he silenced himself and stopped his body from shaking, he put down his arms and his head followed shortly. He looked at the ground and then his eyes looked at Robin who still suffered from the pain. He was getting woozy and leaned on his healthy arm even more as he should.

"Now, let's continue, shall we? I'm slightly behind the schedule."

Behind Scarecrow Harley shouted.

"Hey, what d' ya think you're doin'? You'll take him but left me to rot 'ere?"

Scarecrow ignored her and ordered men to leave a mark for Batman. They did it with pleasure as they draw a big pumpkin face on the cell's glass.

Robin felt dizzier by the second. Scarecrow noticed that and turned his eyes toward him.

Robin's arm gave up and he fell.

"Strong thing, am I right? Oh yes, I designed it myself."

Scarecrow watched him whit satisfaction.

"You see, it can be submitted even in gas shape, but you need oxygen for it to change. While in its gas form it doesn't work if you're just breathing it. You of all should have known that by now."

He kneeled beside Robin and whispered.

"No, it enters through your skin. When I'm done with you and Batman imagine as I let fear gas go. Fear gas, lifting high, filling the Earth's entire atmosphere! Fear everywhere! Can you imagine!?"

Scarecrow's mouth extended into an evil grin and laughed. Then he stood up.

"It will be magnificent!"

Then he looked at the wincing Robin before his feet.

"Well, let me tell you, what is happening to you right now."

He started to walk towards the exit.

"First thing's first, your body will give up on you, but that you already know. Next thing you'll be dizzy and won't be able to move. That's why I've got some help."

By now Robin was barely hearing Scarecrow's words as he was getting weaker and weaker. His world was spinning and his mind was slowly getting darker. Scarecrow's men were getting hold on him and started to drag him away.

"Your thoughts will get unclear and you'll be slipping in and out of consciousness."

Robin barely opened his eyes. The only thing he managed to saw for a second was Commissioner Gordon, watching him with sorrow.

How did it come up to this?

"Finaly your light will slowly fade out… until you're gone."

Scarecrow was walking before him as his men were dragging him away.

Next there was only darkness...

A/N: So? What do you think?

Sequel for when he wakes up?

Let me know and hope to hear your opinion!