The Beast

From Author Wars - https://authorwars.com/publications/the-beast-35565.html

Overview:

Title: The Beast
Author: A. E. van Vogt
Year: 1963
Publisher: Doubleday
Price: $3.50
Pages: 207
Binding: Hardcover
Type: Novel
Title Reference: The Beast
Notes:
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.