I’ve read a lot of Christian fiction with dogs or horses, and some with more unusual pets. Novels will often have cats as pets, but there is only one Christian novel I can think of where I would describe the cat as a major character.
Melissa Koslin’s debut novel, Never Miss, features a Maine Coon cat called Mac who often acts more like a dog. Mac it a big cat and has an attitude to match. Mac and his owner, Kadance, help Lyndon Vaile stay alive long enough to figure out who wants him dead … and why.
I do enjoy a good romantic suspense novel, and Never Miss was a solid debut that has the added advantage of a cat.