The Sinister Invasion

"The Sinister Invasion" by Edmond Hamilton is a science fiction story set in the mid-20th century about Ross Birrel, an everyday electrical engineer whose life turns upside down when he's pulled into a secret government group. The story's excitement centers around mystery as Birrel learns that Earth faces threats from outer space. A strange agent suddenly hires Birrel, who is taken to a hidden place. There, he finds out about a dead spy who looks just like him. He must pretend to be that spy to find out about a possible alien danger. As Birrel deals with a new world filled with spying, lying, and a desperate need to defend Earth, he grapples with moral conflicts. The thrilling start leads to interstellar intrigue and the difficult decisions that come with espionage.