NuNu is missing

Weather: chilly, but bearable
Temp: -2 to 3
Exchange rate: RMB1 - R1,47

NuNu went missing yesterday afternoon and I'm seriously worried. What was she doing outside our apartment in the first place you may ask. Well, there is a door from our floor to the fire escape stairwell. The fire escape is totally enclosed with doors to every floor leading off it, but no access to the basement or anywhere else. I figured since the kitties can only go up or down the stairs but can't get out it should be a safe place for them to get out of the flat for a little bit. Mostly I was hoping that Sam would scratch his gallavanting itch and that we would get some sleep at night. NuNu went out at about 2 and we haven't seen her since. I've looked everywhere, I've asked the cleaners and I've put signs up in the lift. I'm hoping that some good Samaritan found her, thought she was lost, took her in... and will return her.