The Cipher

From Author Wars - https://authorwars.com/publications/the-cipher-394618.html

Overview:

Title: The Cipher
Author: Kathe Koja
Year: Unknown
ISBN-10: 0440207827
Publisher: Abyss / Dell
Price: $4.50
Pages: 356
Binding: Paperback
Type: Novel
Title Reference: The Cipher
Notes:
- "February 1991" stated on the copyright page with an incomplete number line: "10 9 8 7 6 5 4 3 2" (over) "OPM" indicating an undated second printing.
- Cover art is not credited and there is no visible signature.
- Cover artist from Robinson, Weinberg and Broecker's Art of Imagination.
- Cover is foil, die-pressed and die-cut to reveal a small portion of an interior illustration printed on slick paper.
- Publisher is given as Dell on the title page and the copyright page. The Abyss logo only appears on the spine, and on an inside page before the title page introducing the imprint.