Cat of Many Tails was published in 1949. There were many editions. Here is the cover art for some of them.
If you saw this edition cover, you might think cats played a big part in the story.
But no, this cover is by far
the most common --
This cover is more about the city, always an important milieu for the detective story.
And good reasons to forget the cat on the cover completely, since cats are not a big part of the story.
And we get even more abstract----
The best cover may be the Spanish--- where the tails and the feline both feature
Here are our authors: Manfred Bennington Lee (left) and Frederic Dannay. Ellery Queen wasn't the only detective hero these cousins created and wrote about together. Nor are Lee and Dannay actually their own real names.
Layers of mystery to sort. And others have wondered about the connection between reading or writing about terrible things, made up things that are meaningful because they have or could, really happen, and how such descriptions yet function to divert, amuse, entertain. Now that is a mystery.