Lost then found

Jenna is a survivor of this zombie apocalypse, every day is a living hell. She doesn't know why she even tries to survive. Maybe for her father. Or maybe for the chance that one day she will find her lost sister. They were separated in the first week of the zombie apocalypse, and ever since Jenna has not given up hope, but her hope is diminishing. Will Jenna ever find her sister?

(WRITTEN OVER TWO YEARS AGO BUT I"M NOT TAKING IT DOWN FOR SENTIMENTAL VALUE)