File:Merlins Ring.jpg

Summary
Cover art from Merlin's Ring by H. Warner Munn, Ballantine Books, 1974.

Rationale
Fair use claimed for image:
 * illustrates the subject of the article.
 * no free alternative.
 * the size and resolution make reproduction for bootleg copies difficult.
 * reproduction does not detract from the commercial value.
 * Source: http://www.isfdb.org/cgi-bin/pl.cgi?264983