Paperback original. Spine slightly slanted, mior edgewear. Text is yellowing, but clean and unmarked.
"North, East, South, West. . . The offspring of Simon Tregarth, half earthling, half witch-brood, realized that they alone could perceive the four directions - for everyone else, there was no East! It was a blank in the mind, a blank in legend and history. And when new menaces threatened, the Tregarths realized that in that mental barrier there lay the key to all their world. . . somewhere to the unknown eastward must lie the sorcery that had secretly molded their destinies!"; 16mo - over 5¾" - 6¾" tall