That's...a good question. Okay, let me think: there are the 30-odd stories I wrote (); another dozen or so by other people (listed here http://mina.sapphireisle.org/links.htm); Scifantasy's 15 Case stories (http://scifantasy.dreamwidth.org/tag/case); and 8 works listed at AO3 (http://archiveofourown.org/tags/Mina%20de%20Malfois/works), although at least two of them are listed at the Sapphire Isle page as well.

So...65-ish?

~Carla