She took a photo and posted it to Facebook, in hopes that the right people would see it and come to help. The 5-year-old mixed breed dog was sick, terrified and had no way of knowing that day would mean the end of her suffering.
Petra, Greek for "stone," had seemingly never interacted with people before, causing her to be terrified of them. Approaching her was nearly impossible - she would run away if anyone came too close. Rescuing her was extremely difficult, but everyone refused to give up.