Spell of the Witch World
Book 3 of the High Hallack cycle, originally published in 1972. It is a collection of three stories, "Dragon Scale Silver," "Dream Smith" and "Amber Out of Quayth ." I have an early Daw paperback, probably late 1972 or early 1973, as the price is $1.25 versus the original $.95. It features a cover by Jack Gaughan.