The Last Frontier by ALISTAIR MACLEAN

The spy has been assigned with a task, to bring back the English scientist from the clutches of the countries with prevailing dictatorship. He reaches Hungary during this journey. He shakes hands with the anti government organizations. All is going well, as per his plans, but suddenly, something somewhere goes wrong. The Government becomes alert. This leads into a tremendous struggle, fight. The whole country is become a prison, yet it cannot cage the love.A thrilling suspense with the background of navy taking place somewhere in the 1960s, after the defeat of Hitler.