The Blue Hawk

From Author Wars - https://authorwars.com/publications/the-blue-hawk-231189.html

Overview:

Title: The Blue Hawk
Author: Peter Dickinson
Year: 1977
ISBN-10: 0345257596
Publisher: Del Rey / Ballantine
Price: $1.95
Pages: 217
Binding: Paperback
Type: Novel
Title Reference: The Blue Hawk
Notes:
"First Ballantine Books Edition: August 1977" No printer's key or printing statement. "Cover art by Michael Herring" on the copyright page. Signature on the art. LCCN stated on the copyright page has no record in the LoC catalog.