Oh wow, she is missing again??? Not good.

Lut, I won't kick you when you're down but I think you can see that everyone is just trying to offer suggestions and concerns about Zazou's advertures. I think a lot of us are just surprised you let her go out again so quickly. There may not be dangerous predators for her to deal with but obviously from her last ordeal there are dangers. Sounds like a leash/harness is very much worth a try.

As for the crying and howling to get out, been there done that. When we first moved here Ripley got out by accident and after that he was relentless about getting out so I gave in. Within a few months of him being an indoor/outdoor cat he disappeared for two days and when he finally came home he had been shot with an arrow in the leg and was very sick. After that I never let him out again. When he cried, howled, scratched and was a total pain to live with I'd just remember how sick he was and how BIG that vet bill was. It gave me the strength to stick to it and he eventually gave up on going out.

Prayers that Zazou comes home soon safe and sound.