Here’s a thread on Tonka’s ‘sister’, Goo. Here’s a better picture than the one I took right after we got home.
Goo has been sleeping a lot. Her interactions with Tonka were basically mutual sniffing when they met face-to-face, sniffing his tail when Tonka came in from outside, and swatting at Tonka at gooshy food time (and when she was on the ottoman and Blind Boy wanted to walk by). Cats pick up on vibes, and I’m sure Goo knows that we’re sad.