I have posted several times about a stray I rescued in August and have gotten great advice about introducing him to my group of 4. He is the youngest, around 2. I have kept him separate and introduced him slowly, at first he chased my cats so they all avoid him. During the day he is out and about but at night I have still been keeping him isolated. This had been working well, but now he cries to come out of the bedroom he is in. I keep the radio on for him and he has 2 large doors to look out of, but he is no longer content in there, I can't blame him. I would love to leave him out with the others, my problem is when he is out, 2 of my 4 are hiding and seem very afraid of him. They were here first and I don't want them afraid to come out and eat or use the litter box because he is around. There is some hissing but no major outbursts, at least when I am around. Should I just give it a try and leave him out for a night or keep him isolated at night until they are more comfortable during the day hours? All advice is greatly appreciated!!