I warn you that what you’re starting to read is full of loose ends and unanswered questions. It will not be neatly tied up at the end, everything resolved and satisfactorily explained. Not by me it won’t, anyway. Because I can’t say I really know exactly what happened, or why or just how it began, how it ended, or if it has ended; and I’ve been right in the thick of it. Now if you don’t like that kind of story, I’m sorry, and you’d better not read it. All I can do is tell what I know.  

 Miles 

The Body Snatchers by Jack Finney 1955