We found Derby abandoned in a feral colony with an injury to his back leg. He was unable to use it and it appeared to be very painful but he was so excited to see us. He purred and rubbed and followed us every where. We knew we could not leave him there with his injury appeared very bad. We were able to get him to a vet and save his life. His leg was broken at the ankle and dislocated at the knee joint. His leg was filled with infection and he would not have survived long. He responded to treatment quickly and has been the best patient ever. He received all of his vet care while having the infection treated and before he left his vets office, he was beginning to use his leg. He may always have a limp because the injury was at least three weeks old when we found him and it had begun to fuse together. With everything that he has been through he has continued to purr and beg for attention. He gets along well with other cats and is not afraid of dogs.