The book includes two action-packed stories “Under a False Name” and “At Critical Angles” by the classic Soviet spy novel Viktor Semenovich Mikhailov (1898–1973). In the first of them, Soviet border guards detained an intruder who crossed the state border in order to restore contact with a deeply undercover agent. Counterintelligence officers try to figure out the enemy, but he starts his own game with them. In the second, radio reconnaissance detected signals from an enemy transmitter. The enemy managed to gain access to the latest Soviet technology, information about which could shift the balance in the Cold War arms race. It is necessary to expose the seasoned spy and saboteur as quickly as possible...