Look everyone, it's my aunt! She's the reason I started on PT so many years ago. Welcome back to PT!

I can't believe Misty is 10 years old already! I remember when you first brought her home as a little fluffball of a kitten!
I'm sure Misty isn't happy about the new addition, but the advice given on this thread is all good advice, so you're definitely off to a good start.

Also, to ease Misty, I would suggest getting a feliway plug-in. It releases a "happy pheromone" which can help calm stressed out cats.

Also, like others have suggested, keep them separated with only limited "face-time". Spoil Misty like crazy, and praise her and give her treats when Abby is around. That way she'll associate good things with Abby being in the room. *snicker*
I can't wait to see a picture of my new "cousin"!

**hugs**