This book almost reads like a television script -- bite size pieces of action never poising too long on one scene, shifts from frame to frame, the characters are predictable (eg. Dana the erstwhile anchor desk news reporter). It's an easy read.
I was fascinated because this book took me, albeit in a fictional way, to the formerly closed underground city of Krasnoyarsk in Siberia. The description fleshes out what it might have felt living there in its heyday in the early 60's, and ultimately how it and its residents were left to languish in the economic chaos following the break-up of the USSR in 1989. This city was one of 13 or so spread across the USSR, not identified on any maps, its residents living in isolation (in this case partially underground), given relatively high salaries, and more goods and services to sustain them than afforded the average Russian living elsewhere at this time, but subject to lack of freedom to leave as well as constant intense scrutiny by the KGB. Krasnoyarsk in particular was dedicated to processing high-grade plutonium for atomic weaponry purposes.