I'll join you - Snowbarry

Imprisonment

    The Justice League were gathered at the location that Barry had given them. It was a large barren area in the middle of nowhere, a perfect place for a fight. They were all looking ahead and saw three figures in the distance. One in black. One in blue. The third - being held by the second as a prisoner, a hostage. And that's exactly what she was. When the trio were about ten metres away for the League they threw the prisoner to the ground. The Dark Flash looked around and fitted at the sight.

THE DARK FLASH: "Ollie what did I say. No team. Just me, you, Frost and a couple of other heroes. I guess I'll have to fix that, won't I"

    There were flashes of red and hero after hero found themselves miles away (literally). This continued, one by one, until only the Green Arrow, Supergirl, Vibe, the White Canary and Spartan remained. The Dark Flash and Killer Frost surveyed the crowd and decided that there were enough. Green Arrow was about to cart forward and pick up Felicity but Killer Frost noticed this and produced an icicle and held it to her neck, bringing her to her feet in the process.

GREEN ARROW: "STOP! What do you want just... leave her alone!"

THE DARK FLASH: "Oh Ollie, so... predictable. What do you think, Frost?"

    Killer Frost tightened her grip on Felicity and brought the icicle closer to her throat.

KILLER FROST: "I think that I am bored and if someone doesn't do something then it's my turn to have some fun"

    The Green Arrow looked at his team, his friends and then looked down again. He looked up at the Dark Flash and looked him straight in the eye.

GREEN ARROW: "Everyone stand down! Right then Barry. Just me and you. If I win I take you three. If you win you take us all. Deal."

    In a move that suprised everyone The Dark Flash stopped vibrating and held out his hand to the Green Arrow they shook hands as he spoke.

THE DARK FLASH: "Deal."

    Or at least that's what everyone else knew. While the Dark Flash and the Green Arrow were shaking hands the Dark Flash whispered in the Green Arrow's ear.

THE DARK FLASH (whispering): "If you win leave. Killer Frost. Alone."

GREEN ARROW (whispering): "As long as you leave Felicity alone."

    There was a moment of understanding eye contact before the Dark Flash started to vibrate and the Green Arrow tightened his grip on his bow. The battle had begun. The right went on for at least ten minutes. The two men being equally matched. Oliver skilled enough to just keep up with Barry, Barry just fast enough to counteract Oliver's technique. By this point however, they had worn the other out. The two were now swinging wildley at each other. The Green Arrow managed to get the Dark Flash in a choke, signalling the beginning of the end of the fight.

THE DARK FLASH: "You do know I can phase out of this right?!"

GREEN ARROW: "You won't."

    He pulls outback small round device from a pocket on his suit.

GREEN ARROW: "This is a trigger to an explosive. In Killer Frost's pocket. So you could phase out of here... and in doing so know you caused her death."

    This caused a rapid change in the Dark Flash's demeanour. He started to struggle less against the Green Arrow's arm.

THE DARK FLASH: "You wouldn't. Heroes don't do that kind of thing."

GREEN ARROW: "Ohh I would. I'm not a hero Barry."

THE DARK FLASH: "But if you set it off it would... it would kill Felicity aswell."

GREEN ARROW: "Yeah.. but at least I would have other people in my life to help me get over it. You. You would be alone. The only person in your life would be gone and there's nothing you could do. And just to make it worse it would be your fault as to why she is dead so tell me again. Are you going to come quietly or am I going to blow Killer Frost sky high."

    The Dark Flash panicked and frantically tried to escape for a second before realising he had lost he settled down. His eyes, at first avoiding Killer Frost,  but then locking on here as if to say 'don't worry about me. Leave' but hers replied 'never' and he looked down and smirked to himself as he realised that he would never change her mind. He suddenly panicked for a second as he remembered the explosive in her pocket.

THE DARK FLASH: "I'll go just... leave her alone."

    Oliver smiled as he dropped the controller into the ground. The Dark Flash felt the impact on the side of his head. The last thing the Dark Flash saw was Killer Frost trying to reach out for him before... black.

    Killer Frost saw her partner get knocked out and tightened her grip on Felicity, ready to kill. The Green Arrow looked over and saw this and stared Killer Frost.

GREEN ARROW: "Frost, I won the fight. This means I can take Felicity and Barry. Use your immunity here. Leave. Plan to cause more havoc, plan to save Barry I don't know.  Just leave. And don't take her with you."

KILLER FROST: "No... No! Take me with you. I can barely hold her back anyway."

    To the outside eye Killer Frost / Caitlin's eyes kept flickering from brown to blue but what No one knew was that she was faking the instability. She was turning on and off her powers and in doing so changing her appearance.

    Cisco saw Caitlin's 'personality struggles' and rushed over to help her

VIBE: "Hey Caitlin, listen to me. We're going to get you out of there ok?!"

FROST: "Just do it. NOW!"

    She felt the impact and knew what was coming. She welcomed the blackness and the last thing she saw was the Dark Flash being dragged away and she was safe in the knowledge that she would follow him. Then... black.