New York: Ziff-Davis, 1966. Softcover. Digest size magazine. 160 pp. Cover by Frank R, Paul. Contains 'Sunjammer' [Clarke], 'For Each Man Kills' [Temple], 'The Runaway Skyscraper' [Leinster] and 'The Malignant Entity' [Kline].
New York: Ziff-Davis, 1966. Softcover. Digest size magazine. 160 pp. Cover by James P. Settles. Contains 'Secret of the Death Dome' [Miller] and 'Elaines Tomb' [Wertenbaker].
New York: Ziff-Davis, 1966. Softcover. Digest size magazine.160 pp. Cover by Frank R. Paul. Contains 'The Space Witch [Miller]; 'Mr. Dimmitt Seeks Redress' [Breuer] and 'Eddie for Short' [West].
New York: Ultimate, 1966. Softcover. Digest Magazine. Cover art: James B. Settles. Contributors: Keith Laumer, Walter M. Miller, Jr., John Beynon, Robert Sheckley, Joseph Shallit and Poul Anderson.