Spies spy on confidential information from the enemy or secretly carry out sabotage activities. They can unscrupulously peek into the privacy of politicians and civilians, and carry out kidnappings, assassinations, stealing intelligence, smuggling arms, etc.; Sometimes they transform into civilians and break into various groups to spy on intelligence. This book selects some wonderful stories from a large number of real spy cases and presents them to you one by one. They are both real and eerie, fascinating and mysterious.
