Actually they aren't stanalones at all, they have their own arc going on, which will be concluded (or at least continued) in David Mack's Rise Like Lions next year.You should, the majority of the stories in the series are great.I recently finished David Mack's Star Trek Mirror Universe: The Sorrows of Empire novel - it was very good. I liked the "Foundation" vibe - I was expecting something more tragic, though.
I almost feel like trying some more of the other Mirror/Myriad Universe stuff now.
Thanks for the recommendation. But after all the inter-continuity in Trek books of recent years I find the idea stand-alone stories a little off-putting..
EDIT: Just the Mirror Universe books have the arc. The Myriad Universe books have all been stand alone so far.