(Foreword by Sandra Miesel)
Quixote and the Windmill
The Troublemakers
Holmgang - (original title= "Out of the Iron Womb")
Cold Victory
What Shall It Profit?
Brake

Original appearances from 1950 to 1957 - in Astounding, Cosmos, Planet Stories, Venture, IF. This is the first organized set of stories from Anderson's first loose "future history" - the Psychotechnic League, or "planetary engineers" stories. Half of these are previously uncollected, and do not appear in other collections by Anderson.