The Twisted Men / One of Our Asteroids Is Missing

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Overview:

Title: The Twisted Men / One of Our Asteroids Is Missing
Author: A. E. van Vogt, Calvin M. Knox
Year: 1964
Publisher: Ace Books
Price: $0.40
Pages: 130+124
Binding: dos
Type: Omnibus
Title Reference: The Twisted Men
Notes:
- Pub month from Corrick.
- Cover for The Twisted Men has "First Book Publication"
  - The Twisted Men130 pages
- Cover for One of Our Asteroids is Missing has "First Book Publication"
  - One of Our Asteroids is Missing 124 pages
- Cover artists are not credited and signatures are not visible for both titles. ACE Image Library credits Gaughan with The Twisted Men and Emsh with One of Our Asteroids is Missing
- James A. Corrick reports on page 39 of ''Double Your Pleasure: The Ace SF Double'' Gryphon Books, 1989), the following about the covers: "The covers of these two novels were flipped, so that the Emsh cover, meant for the van Vogt collection, ended up on the Silverberg novel and vice versa."