Lost Black Cat: Help Find Our Beloved Pet

He is a black bombay mix. He is neutered and microchipped. He always comes for dinner. When he didn't come Monday night i started to get worried but there have been a few times when he missed dinner but came late and was there in the morning. I didn't see him at all Tuesday and he didn't come for dinner again. Both of my children have asked multiple times now if he has come . Please help us find him. We are very worried and want nothing more than to have him back safe.