I'm hysterical I've just got in off a night shift I can't find her in the flat anywhere. She goes out into the hall way and never tries to get out of the mutual cat flap. My flat mate has gone to work I can only think she's ducked out whilst the door was open but would she really have gone out the flap as well? I'm on a main road. I don't think she's big enough to get back in through a window she can't jump that high. I'm back at work tonight.