I have posted previously and read all the material provided. Today is the day - as my new kitten was sick and needed to be kept secluded from the older. So - they have been able to smell each other for 1.5 weeks. I had the younger in a crate for 15 minutes letting my older kitty sniff around. She was not happy growling and hissing. I let him out after 15 min with close supervision. My older kitty is watching closely but still growling and hissing. I will give them 1.5 hr total together, then put the little one back in his room while we are at work etc. and will try again later. I tried to give the older lots of positive interaction, treats, play, etc. Does this sound like this is going ok? Suggestions? I realize it will take time.