Lord Auditor Miles Vorkosigan is investigating a cryofreezing operation on the planet Khibou-daini when he is kidnapped by terrorists. The terrorists are a side-angle, as his investigations unearth far more than he initially realized. An enthralling adventure with, well, Miles. And, eventually, some other old friends. There are cute kids, a mystery to solve, Miles acting "like the rules don't apply to him" and, oh, a sphinx! There's a lot in here about aging and mortality, business and medical ethics, derivative trading, and families. Better than "Diplomatic Immunity," but not as good as the earlier Miles books. 
 The ending is devastating.