Black Sun

"A chilling and cinematic thriller set in 1961 in one of the most secretive locations in Soviet history. Ten days before the test of largest nuclear device in history--the Tsar Bomba--a KGB officer must investigate the murder of one of the architects of the bomb, and unravel a conspiracy that could set the world on fire"-- 1961, Arzamas-16, a top-secret research city that does not appear on any map. RDS-220 is a project of such vital national importance that, unlike everyone else in the Soviet Union, the scientists of Arzamas-16 are free to think and act, live and love as they wish-- as long as they complete the project, and build the most powerful nuclear device ever known. When a young physicist is found dead, KGB officer Major Alexander Vasin is sent to investigate. It is a city full of secrets-- including one that could extinguish all human life on the planet. -- adapted from jacket