Nightwings

From Author Wars - https://authorwars.com/publications/nightwings-24281.html

Overview:

Title: Nightwings
Author: Robert Silverberg
Year: 1969
Publisher: Avon
Price: $0.75
Pages: 190
Binding: Paperback
Type: Novel
Title Reference: Nightwings
Notes:
• "This is the first publication of Nightwings in volume form" • "First Avon Printing, September, 1969"; no number line • The artist is not credited; no visible signature; the signature is visible on the original artwork • Contento1 lists this as a collection of three novellas • Printed in the US