I really enjoyed both of these books :D I read Musketeer Space last year, so my memory is a little fuzzy, but Sorcery of Thorns just about two weeks ago. I really enjoyed the magical libraries and demons setting, and the characters too and their dynamics. It's a fairly straight-forward book - the villain was immediately apparent, and none of the twists were that surprising - but that's not necessarily a bad thing.
It is nominated for Yuletide, so there might be more fic soon! (Currently there's two, both post-canon - and I'm writing one, but I'm too busy rn with Yuletide to finish it.)