Hiding or Facing, livre audio

A financial analyst and manager dies of a heart attack. But he finds himself reborn in another world, where technology has surpassed his original version of the early 20th century world. When a bomb falls on his beloved home, he finds himself at peace with his new family.
As the world spins around a cycle of chaos, all nations unleash their best agents to spy on their enemies in order to gain the upper hand in the pecking order of this new world.
This is the story of the man who will be known as the greatest spy in this new world.