The Original, Unedited, Magazine Text: THE ALIEN MACHINE-Cal Meacham was proud of his scientific talents till he found himself faced with alien products that could only have come from another culture! THE SHROUD OF SECRECY-Cal Meacham's new job is an engineer's heaven, until he's led to peer beneath- THE GREATER CONFLICT-At last Cal Meacham of the Peace Engineers finds the answer to his problem, but he does not find it anywhere on Earth! Published as three short novelets in Thrilling Wonder Stories in 1949-50, these three stories were later combined, slightly rewritten, and a fourth part added on to form the complete novel published in 1952-later to become a major motion picture from Universal-International.