But, to my surprise, I discovered another cat on an adjacent chair.
This little darlin' has been hanging around lately and Smoke seemingly has accepted him. He's quite shy, yet bold, and neither of us has been able to approach him. I think he's a girl but SWMBO says yellow/orange cats are always boys and she named him Golden Boy. But he's not at all aggressive which, I guess, is why Smoke has accepted him so readily.