kitty in the bathtub

My husband and I just recently adopted a 1 1/2 year old spayed female. We have a 5 year old female who really doesn't mind her presence, but Lizzie (the new cat)is terrified of everyone. When we first arrived home, we placed Rachel (our 5 year old cat) in our bedroom and opened up lizzie's carrier in the bathroom with the litter pan. Lizzie has yet to leave the bathroom and has been in the bathtub for about 8 hours. She growls and hisses every time we even go near the bathroom door. Again, Rachel seems to have no problem and it's pretty much business as usual for her. What can be done to email Lizzie's transition and make her less fearful and feeling less threatened?

Time is the best answer. 8 hours is not a very long time. Cats are very leary about new situations. I would just go in there and talk softly to her and then gradually get closer to her and maybe a few pets. Also, you can offer her some baby food on a spoon or even some wet food. Let her know that she is not going to get hurt. I am sure at some point she was traumatized. Just keep working with her and she will come around.

could the fact that lizzie was declawed (not my choice) account for some of her aggression and fear? also, she left the bathtub and is now hiding behind the sofa, but is still growling and hissing at everything and everyone.

Yes, sometimes declawed cats have issues. However it may be a little early to tell. She is new to the house and was probably in a bad situation prior to this. I really would confine her to one room for now. At least until she gains your trust and seems a little more calm. Giving her roam is proably a little overwhelming to her. If you use some of the suggestions I gave you while she is confined. It will help the transition and she will feel more at ease.