Sorry to see your baby missing.

KC has an excellent support staff and can get your kitty back to you really fast.
SL likes to mess with our babies. The first things you can do when a kitty is missing is do an area search. In the firestorm window it's under world I believe. Type in the name of your kitty and search.
If you don't find it, you can get the kitty ID number from your pedigree page under the kitty and put it in a support ticket. Pedigree and Support tabs can be found at the top of you forum screen.
I hope you get your kitty back soon. It is a gorgeous baby.