Difficult to say really, there's a bit of a tomcat smeel and most of the food trays have been licked clean (not something my lot ever do) but it's not definite it's Ivan as the catflap is currently unlocked to all comers.
We went through something similar with Chuby, he disappeared for a couple of days but eventually came back for his grub, and never left after that, so maybe he just needs to re-familiarise himself with the big bad outdoors for a while.
I'll hang around as long as possible today but fear I'll be dragged into the office for a meeting later. Have been re-assigned.
Thanks for the vibes