THE LONGEST BOOK SERIES TO GET YOU THROUGH WINTER 2020, AKA THE LONGEST TIME OF ALL OUR LIVES

[yellowdogintexas]

5. The Midnight Louie series by Carole Nelson Douglas at least 26 books

She lives here in Fort Worth and is a good Democrat!

Midnight Louie is a 20 pound black cat who is very streetwise and fancies himself a PI. He owns a delightful woman who runs PR for a Vegas Hotel. There are a number of recurring characters, a couple of love interests for Tempest and Louie, great local color (the hotel is owned by a man of questionable reputation who has 7 brothers, all of whom have come to the rescue at one time or another.It is one of those Alphabet series. All the titles have a color, as in Cat on a Blue Monday, Cat in a Crimson Haze etc
Louie narrates part of the story, in first person using a different font than the rest of the book which is narrated in third person.

Carole also has a series featuring Irene Adler ( Sherlock Holmes is a character in these)
Delilah Street (paranormal detective series)