( Spoilers for both the Vorkosigan and Russell/Holmes series, plus one big Gaudy Night spoiler. )
Nepveu also asks in her post, "I'm starting to wonder if this is a subgenre, books written in obvious tribute to Gaudy Night." It makes me wonder how much of Ekaterin Vorsoisson's and Mary Russell's character arcs were inspired by GN, and whether the resolutions I found so incomplete might be an inadvertent effect of the authors echoing GN's plot and some of its themes, but changing things around enough that the conclusion of the romance doesn't tie things up as neatly as Sayers did in GN. (If she really does resolve things that well in GN - I read it once, when I was 15 or 16, it was my first Sayers, and I know I missed things left, right and center. Currently, I can scarcely remember what happened in the story.)