My husband and I already had a cat that is about 1 year old that we got when he was 4 months. We wanted to get another cat and we looked at every shelter to make sure we were getting the best cat for our family. We finally decided on a 13 year old cat that had been at our local shelter for about 2 years and they said that no one had even shown an interest in him. Before bringing him home we took a towel that our cat now lays on all the time and he kept it in his cage for a night and we got it back and our cat smelled it and slept on it again. We went to get our new friend yesterday from the shelter and brought him home. The initial meeting was great! no fighting or hissing. My younger cat is chasing the new one around now and as the new cat was already declared I am not afraid of him hurting our younger cat but the constant hissing and growling is driving us crazy . We separated them last night putting the older one in a room with his own box and food which he did not seem to mind, but this morning my husband and I grabbed our younger cat and took him in that room to sit on the bed and see if they could co exist with one holding each cat and the older one hissed and batted at our younger cat. I was so excited to bring him home and I want this to work so bad. Is there anyone else who has had this problem or may have some suggestions on what I could do to help the older cat adjust to the new one?