Contents

4 • The Incubi of Parallel X • Theodore Sturgeon
34 • Sanctuary, Oh Ulla! • J. T. McIntosh
44 • The Inhabited Men • Margaret St. Clair
50 • The Star-Fool • Gordon R. Dickson
57 • Last Night Out • Milton A. Rothman [as Lee Gregor ]
67 • Tydore's Gift • Alfred Coppel
71 • The Watchers • Roger Dee
75 • Vengeance on Mars • Jerome Bixby [as D. B. Lewis ]
80 • Hospitality • J. W. Groves
85 • Lord of a Thousand Suns • Poul Anderson