Indicia at the bottom of the inside front cover:
"Tarzan, Book 3 of 4. Copyright © 1986 Edgar Rice Burroughs, Inc. All rights reserved. Trademark TARZAN™ owned by Edgar Rice Burroughs, Inc. and used with permission. Published by Blackthorne Publishing, Inc., 786 Blackthorne Avenue, El Cajon, California 92020, U.S.A. Telephone (619) 463-9603. Steven J. Schanes and Ann E. Fera, Publishers. Paul Tallerday, Production Coordinator. Lynn Cobb, Graphic Artist. Cliff MacGillivray, Marketing. Ann E. Fera, Promotions. Front and back covers painted by Barbara Marker and Paul Tallerday. First Edition, June 1986. ISBN # 0-932629-31-8."
Date in the indicia is June 1986; date on the title page is July 1986.