If she had a name once, she had long since forgotten it. Two years ago, she signed away her identity to join human trials to solve the troublesome issue of death. They had not told her that to solve death they had to induce it many times because the scientific method demanded that their results be replicable.
The first time they killed her was not so bad. The second and third times were harder. By the fourth time, she was tired of coming back. Still, the experiments continued.
Every night her mirror reflected a faceless shadow. After two years, the experiments were declared a success. She was, beyond a reasonable doubt, the first immortal.
She traveled the world with company representatives to tout their success and sat in the front row as the scientist who had killed her 731 times accepted a Nobel Peace Prize for his work. As he took the stage, she began to cry and a reporter later wrote that she was crying with joy.
The faceless shadow from her mirror walked up and stood beside her as she cried. It leaned down and whispered to her in her own voice a language of death that only she knew. It told her it would never leave her side, as long as she lived.
For the rest of her life, and she is still alive somewhere, her death remained incarnate, cursed to live, wandering a pace or two behind her wherever she went and whispering in her ear the truths she did not want to hear.