On Tuesday this week Vegas' "little brother" had to go to the vet to get neutered and some teeth taken care of. When I picked him up I brought Vegas with me to have them take a quick peek at her tail again. I was fairly certain all was well and she was going to get to keep it as I had been watching it per their instructions. No blackness and no smell. Sure enough she was fine. They said she would always have a bump there but she didn't have to lose her tail so yippeeee!!!!!!!!