Condition: Acceptable. Please see the images for more details.
Blurb: "Who is J. Shelby Stevens?
How did he get his information?
These were the questions that the head of Earth Security had to answer before he could use his new communicator. Without the Dirac transmitter, man's expansion into the galaxy must stop. And unless Robin Weinbaum could find J. Shelby Stevens, the universe was closed!"
Cover: Gene Szafran
Blurb: "Who is J. Shelby Stevens?
How did he get his information?
These were the questions that the head of Earth Security had to answer before he could use his new communicator. Without the Dirac transmitter, man's expansion into the galaxy must stop. And unless Robin Weinbaum could find J. Shelby Stevens, the universe was closed!"
Cover: Gene Szafran