By hiding, the younger kitten may be telling you she needs to be separated from the older one for a while. I've been lucky that whenever I've added a cat to the population here, they've gotten along. But I think you need to set up the baby in a room by herself with frequent visits and cuddles from you, with a box, food and someplace she can retreat when she feels scared. Let the older kitten check out the closed door. A few times a day, take the baby out of the room and put the older one in there. The older kitten is trying to let the younger one know who's the boss, but the younger one is intimidated and scared. Socialization for the younger one is the key here. You need to build up her confidence with gentle playtimes, kind words, love and patience. Don't ignore the older one and give her, separately, the same thing. You need to start over with the intros and it should work. It may take a while since they got off to a bad start, but be patient!

Izadore (Izzie) answered on 1/23/12. Helpful? / 0