Three Against the Witch World
Book 3 of the Estcarp cycle, first published in 1965. This is an early Ace publication (#80800) from 1965 or so, with cover art by Jack Gaughan. The first edition cost 40 cents; this edition was 50 cents.
Andre Norton Books
My Personal Collection.
Copyright 2007-2009 by Mike Grimm; copyright of cover images are held by their respective owners, which are used here for illustrative purposes only.