New York: G.P. Putnam's Sons, [1963]. First edition. A fine copy in a near fine dust jacket, some mild rubbing to corner tips, spine ends and jacket folds. Still a bright attractive copy which is elusive in superior condition. (11832). Octavo, illustration by Irv Doktor, cloth. [Reference: Anatomy of Wonder (1987) 3-200. Barron (ed): Fantasy Literature 4A-135. Pringle, Modern Fantasy: The Hundred Best Novels #27].