The Beast

According to Peter Nicholls this is a fix-up of "The Great Engine","The Wonderful Man" (under the title "The Changeling"), and "The Beast" originally published in ''Astounding Science Fiction'' 1943, 1944. According to Icshi:

• Chapters 1-5: "The Great Engine" 1943;
• Chapters 5-11: "The Changeling" 1944;
• Chapters 12-13: linking material;
• Chapters 14-31 & Epilogue: "The Beast" 1943.

Icshi writes: "each story has undergone substantial revision", but "The Changeling was thoroughly re-written."

Three stories combined into a novel: "The Great Engine", "The Changling" and "the Beast". "First Edition" so stated on copyright page. Cover artist credited on front jacket flap. Contento1 lists this as a collection Gutter code E7 on page 207.

Year	Reviewer	Publication
1963	S. E. Cotts	Amazing Stories, September 1963
1963	P. Schuyler Miller	Analog Science Fact -> Science Fiction, November 1963
1963	Avram Davidson	The Magazine of Fantasy and Science Fiction, November 1963
1964	Franz Rottensteiner	Quarber Merkur, #5