He looked towards his best friend, slowly dying. Light fading from his eyes. Colour fading from his skin. There wasn't much time until he'd be past the Gone, and so Thomas new he had to hurry. Even if that meant trusting her. He couldn't, couldn't let another friend die in front of him, or worse, in his arms.
And so if that meant he has to trust Teresa to extract the cure, then so be it. He grabbed her wrist and ran as fast as his legs could carry him up to the top of the building. He gave her a nod and sat down on the seat nearby. Teresa took hold of his arm, and he tensed at the feel of the traitor's touch. She recognised this, obviously, but got to work nevertheless. After a slight prick, it was done and she now got to work on the cure.
Thomas looked around the building in disaster.
"Do you think he'll make it?, he finally asked.
After a minute, she replied, "If he's still alive now, then definitely."
"But how can you be so sure?"
"I know. Just trust me."
The last sentence stung, knowing he could never trust her again after what she did to him. He thought for no less than a minute, when finally it was finished...
Thomas grabbed the cure and sprinted off to find Newt, hoping it wasn't too late. What if he was? What if Newt was already dead? No. He couldn't allow himself to think like that. Another minute passed, and he was outside when he saw Minho rushing towards him. Oh no. He was too late, wasn't he?
"Quickly!" Minho broke his thoughts, "Don't give me that look, he's still alive, just... HURRY!"
Thomas ran as if his life depended on it, which in theory, it did. That was the fastest he'd ever run before, he knew that for sure. Just as his legs began to give in, he saw Newt. Lying on the ground. Bit still alive.
As quick as he possibly could, he injected the cure, and immediately Newt looked better. Sure, it would take time to fully heal, but he was alive, and that's all that mattered.
A short one-shot of how the death cure should've gone for all you fanboys/fangirls who want to see what it would be like if Newt didn't die.