The Forbidden Zone  (English, Hardcover, Hetzer Michael)

In the dying days of the Cold War, during a joint US-Soviet science project, communist astrophysicist Victor Perov and his American colleague Katherine Sears fall dangerously in love. Though the passionate alliance does not shake Victor's faith in the Party, Katherine's revelation that his twin brother Anton, believed killed in Afghanistan, is actually imprisoned somewhere in the Soviet psychiatric gulag, does. Every step Victor takes to find Anton pits him against his fellow communists and even his own mother, a high-ranking Soviet minister known as the Iron Perova. Meanwhile, an unwitting accomplice, a disgruntled KGB officer, stumbles upon the corpse of an ambulence driver / informant Victor was meant to meet. As suspense mounts, the shocking events leading to the driver's death are linked to a refugee being shot down in the forbidden zone on the Siberian border, a mystery man whose identity is the key to Anton's whereabouts. His career, his family and his life at risk, Victor must learn who to trust in this deadly game of Party Politics in order to save the woman he loves and his twin brother.