We've probably talked about this before. But it still plays around in my head since I want to write one or two. . maybe three. . separate series myself.
When does a detective/police-procedural/historical detective series begin to get long in the tooth? Worn out. Kaput.
I'm thinking of the long running series of Ed McBain's 87th Princinct. Or Tony Hillerman's Jim Chee/Joe Leaphorn series. Of course there is James Patterson's Women's Murder Club series. Or Earle Stanley Gardner's Perry Mason series.
Do you think its possible to continue writing excellent books in a series, book after book? Or are there going to be clunkers on the way?
What are the signals you, the author, must see in making a decision to retire a series? Any thoughts?