Synopsis
History
First publication: Galaxy, June 1975
Review
Videos
We have the story in these editions:
Galaxy Science Fiction, June 1975, edited by James Baen, magazine, UPD Publishing, 1975-06-00
All of the stories in the The Power of Blackness series:
The Power of Blackness
The Power of Blackness
The Eternity Engine
Counterkill
The Dark Destroyer
The Machines That Ate Too Much