I first met a refugee from Laos, a teacher in her former life, while working part-time in a miserable egg-packing factory in the early 1980s. I had only a hazy notion of what had brought Ping to this country. Christopher Kremmer’s Bamboo Palace has now clarified those circumstances, and what a sad and painfully human story it is: of a 600-year-old socially iniquitous, politically benign kingdom destroyed and replaced by a totalitarian state.