Have you sent her an in-game mail?
Have you considered:
Maybe she had a friend log on and check her mail/gather auctions etc.
Maybe she just logged on briefly when she got home and hasn't had time since
Maybe she's forgotten about the pets she had
Maybe she contacted other people first and didn't get around to you/forgot you/didn't know where to contact you
Just playing devil's advocate here, but I wouldn't say it's done and she's a thief just because she hasn't logged on and instantly messaged you. Contacting a GM is definitely a good idea - until then, just wait and see I guess
![Sad :(](./images/smilies/icon_e_sad.gif)