Operation Terror ♦ By Murray Leinster 🎧📖 Audiobook

The mild-mannered surveyor Lockley is going about his business at a project site in Colorado when the unthinkable happens -- an object that seems to have originated from outer space crashes to the earth. This unusual event sets off a chain of increasingly dire consequences, and before long, it becomes clear that only Lockley can save the world from the impending alien invasion.