We are so sorry to hear about your loss of Filou.
It is sad to hear of the losss of such a Beloved and Well Cared for Cat Companion, especially one who we have read about over the years.
I found an Old Cat Mas Card of Filou and Tigris with Santa Hats on , and hae placed it in My Photo Album of Departed Angel Animals so they can come with us , when they wish on our trips to the King's Buffet.
Filou and Tigris are reunited now in Paradise and together they will find a place where you can all be reunited in love.
One Fine Day