My black and white cat is very good at hiding. He’s not allowed out because he’s having treatment for his eye. It does mean that I have to let the other two out carefully. We are keeping the door between the kitchen and backdoor closed. Except when hubby forgets. Last night he was going to bed. I asked him to check the cat was upstairs. He shouted down he wasn’t (he’s got a couple of good hiding places). So hubby went out in the rain to see if he could see the cat. I stood and called at the back door. Hubby came back, no sign. But the cat usually comes when I call. I promised to whistle and shout for him every hour or so to see if he would come back. But all that happened was the other two cats popped in and out. After hours of not sleeping, but going to the back door regularly and calling and rattling food… At five thirty am he CAME DOWNSTAIRS! ate some cat food and fell asleep on top of the settee and I could finally rest!