The Latin phrase used as the title of this story by Frederic Max gives away a little about the plot. Rex Ex Machina translates as King from Machine. The story comprises a letter from a dying man to his only son. There is nothing at all sentimental about the letter… the word “love” isn’t even mentioned! Rather, it explains something that the man has been hiding from his son for almost forty years. It tells how he had once trained as a spy and been sent on a top-secret mission to destroy a machine that threatened the free world. More…