help finding book: man sees cats hold funeral for their king, his cat is new king

This was a picture book I read in the early 80's.  A man tells his wife
about something he saw or a dream he had or something: a group of black
cats were holding a funeral for their king, or something.  When he
finishes telling the story, his own cat, who we realize was actually
listening and understanding the story, shrieks in surprise that this
means *he* is the new king, and he runs out into the night.  Quite a
surprise ending and I remember it being kinda dark and creepy.  Any help
appreciated.  I remember the cats had kinda strange names, I mean it
wasn't like the new king was Fluffy or anything.

Túrin