The Hemingway Kittens, by A.R. Morlan (epub/Kindle/pdf)
Cats and bookstores and science fiction...the perfect combination!
Here is a modern classic by the late A.R. Morlan (1958-2016), best known for her Ewerton series of horror stories set in an imaginary small town in Wisconsin, which also includes novels The Amulet (1991) and Dark Journey (1991). But she was a frequent science fiction and fantasy author (often appearing in Best of the Year anthologies), and also published erotica.