I am sure Zazou is safe. She has been in the past. But she may be stuck somewhere again, so I hope you can find out where.....SOON.

Lut, if you wish to keep allowing her access to the garden I think you have to accept her independent nature. Obviously HER idea of boundaries is not the same as YOUR idea of boundaries. I believe she will continue to wander so you might just have to learn not to worry so much. I know it is common place to allow cats out of doors where you live. (here in America, it is not as easily accepted. Many of us have a hard time understanding a point of view different from our own.....forgive us )

Prayers that she is safe and comes home SOON>