So maybe he should have thought this through a little more carefully.
Eobard Thawne raised a confused eyebrow at the deceased scientist in the driver seat. That had certainly not been the desired outcome. Note to self: the cars in this era flip easily.
Well, wasn't this the greatest day ever? What was he supposed to do now, exactly?! He needed the other person to be alive in order to use the DNA Resenquencer, he needed STAR Labs to be in functioning order if the Flash was ever going to exist, and he needed the Flash if he was to get back to his own time... God, how he hated temporal mechanics!
A pained moan interrupted his train of thought. In the passenger seat, blood dripping from her forehead, Tess Morgan began to stir. Her eyes, unfocused at first, opened wide when she saw her beloved Harrison hanging upside down, her mouth forming a scream before her brain could fully process the situation.
"Oh… Harrison!"
Her panicked gaze landed on the stranger in front of the car and her hands flailed, helplessly.
"Help! Can't you see he's… Oh, god!"
Her voice failed into a sob, and, in her despair, she grabbed Harrison's hand, repeating his name, senselessly.
The gears in Eobard's head began to turn. It's true, he needed STAR Labs, but it was also true that the laboratories had two founders and he could use any one of them in his plans.
Tess barely registered as a pair of strong hands pulled her out of the car. The physical pain she felt had nothing on the hole that had seemingly been drilled into her chest and she stared into the stranger's face, her eyes teary, helpless and afraid.
"Who are you?", she asked through her daze.
Eobard looked into her scared face and, for a moment, felt a fleeting feeling of pity that he'd have to sacrifice a woman so beautiful.
"My name is Eobard Thawne, but that name doesn't matter. Not anymore. It won't matter for many years. The only thing that really matters is who you are: Tess Morgan".
Tess blinked and tried desperately to clear her head. "What are you talking about?", she asked. Maybe she had a concussion. Maybe he wasn't making any sense. Maybe this was all a nightmare. "I don't understand…"
"In year 2020, you and your… husband, Harrison Wells, successfully launched a particle accelerator that changed the course of history. I need it to happen a bit sooner if I'm going to get back". He thought about the years he'd have to live as a woman. "Much sooner".
Sirens sounded in the distance and Eobard readied the resenquencer.
"You see, I'm sorry, but they're not coming to save you. They're coming to save me".
Then, without a second thought into the matter, he plugged the device into her and a most unpleasant sensation took over. His limbs behaved as if they wanted to sink back into his skeleton and his skin boiled. When it all was over, only a woman and a corpse remained.
Now all he had to do was hide the body and wait for someone to come to the couple's rescue. Eobard looked down at his feminine arms with distaste. Ugh, the things he had to do for the sake of the plan. He supposed it was his own fault, though. This day just kept getting better and better.
Author note: I am Brazilian, so tips and corrections to my English are more than welcome. :) Please review if you have the time!