can anyone give me some advice on introducing Mila (new kitten) to Mia (older existing cat). Mia is 4 years old and has always been an only cat. She has not had interaction with other cats and she is a real daddys girl very vocal and still very playful. we have made a safe place for Mila (kitten) in my daughters bedroom and its been a week since we adopted her. We have allowed Mia into the bedroom to smell and check things out and holding Mila. She did hiss but not aggressive and just walked out the room. i have taken Mila baby out on 3 occasions and let her play around our house in lounge and kitchen with us watching her (Mia big cat was put into my bedroom) baby Mila was in her element and climbed and sniffed everything she went balistic. My question is when and how do i introduce them properly ? i know she has to stay in the bedroom as she is still so small and we are not alwlays there. Mia big cat has her food in the kitchen as she always has done and Mila baby has her food in her safe zone my daughters bedroom.