My wife and I have 3 cats and two weeks ago adopted a 7 month old kitten. The kitten likes people and doesn't seem to mind our dog but is scared to death of other cats. If she as much as sees a cat across the room she hisses and backs up, even if they aren't paying attention to her. She had been an outside cat pretty much left to her own accord by some negligent prior owners. She has been fixed and we got her all the necessary shots and a checkup. Two of our cats are old and no issue but one is about 5 years old and seems to want to attack this kitten every second of the day. The couple times we tried to introduce them in a controlled situation it went poorly. Currently the kitten is walled off via a baby gate in her section of the house. Oh, and the kitten won't play with anything, ever. I've tried about 20 different toys as well as catnip and she's not having it. The only thing she seems to like are certain cat treats. We have tried to create positive situations by using the treats to get her close to the baby gate, and the waiting cat on the other side but with minimal results. It's only been 2 weeks but any advice would be welcomed.