Kuhio was an only child because we didn't know any better. By the time we realized she was lonely, she was so set in her ways that we thought it would be cruel to bring home another baby.

Halo and Cammie did not get along at first. Halo was in our house first. But Cammie was older and more of an alpha cat. They had a few spats but eventually agreed to ignore each other. Things really calmed down when my husband and I decided that since Cammie was the older one, to always acknowledge her first, feed her first, etc. Halo accepted this and there were no more fights. (They never really hurt each other. Just lots of hissing and spitting).

When we brought Pepper home a year later, Cammie went into her "alpha" routine and Pepper (being less than a year old and all of 5 pounds) basically laughed in her face and continued her kitten antics. Cammie still doesn't know what to think of that. But, Halo and Pepper have become very fast friends so their happy. Cammie's happy because they are leaving her alone.

I say go for it. Continue to treat Mishka as the alpha cat so that she's not always concerned about making sure everyone knows that she's in charge. I'd also introduce them slowly. Put your new baby in the bathroom with some food and a cat box. Mishka will start hanging around the door and they will get used to each other's smell.

I can't wait to hear what you name this adorable one. He looks like he's just full of spunk and attitude.