Borders of Infinity is nearly the perfect pocket-sized Vorkosigan story. Miles is dropped into a Cetagandan POW camp with orders to rescue one man and turn him into the nucleus of a future resistance. The target is already dead, and so Miles improvises, going from one religion fanatic to an army of 700 soldiers and unquestioned power in the hellish POW camp (24 hour light, enough food to meet Red Cross obligations, and a blank forcefield separating the camp from the outside world. No information, no hope, no escape). The plan comes together in a heart pounding rescue. Pretty much everything you'd want or expect, pressed into 100 pages.

The Mountains of Mourning is a rather traditional murder mystery, with Miles forced to confront the anti-mutant prejudices of rural Barrayar when a young woman seeks justice for her murdered baby. It's a fascinating look at where Barrayar came from, compared to where it's going.

Labyrinth is the weak link in the collection. While I was excited at first to see the criminal planet of Jackson's Whole, we mostly see receiving halls and laboratory corridors-pale imitations of Cetaganda and Beta Colony. The actual plot, concerning genetically modified super-soldier Nine and her and Miles's seduction/escape/recruitment just hit way too many of my squick buttons. I guess Nine/Taura matter, since she's on the cover of Miles Errant, but this is the only part of the series so far I *wanted* to put down.

*Bookrace 2014 notes: 3 Novellas counts as a book. I actually read these in a different set of collections, but they count. Didn't read the framing story.