Ballantine 507K
Paperback / 1961
Expanded First Printing
Cover Artist: Richard Powers
A shorter version of this story first appeared in Startling Stories Aug, 1952, (his first sci-fi story) which won Farmer his first Hugo Award. Hal Yarrow, the main character is a linguist (many of Farmer's characters are linguists) who is studying the languages on another planet. He discovers that the planet has been visited by humans before and he falls in love with a descendant of those previous visitors. However, she is not what she seems.
Paperback / 1961
Expanded First Printing
Cover Artist: Richard Powers
Paperback / 1972
Second Printing
Cover Artist: Unknown
Paperback / 1979
Uncorrected Proof
Hardcover / 1979
Revised First Hardcover
Cover Artist: Unknown
Paperback / 1981
Cover Artist: Les Katz
Paperback / 1982
Cover Artist: Jim Burns
Paperback / 2006
In STRANGE RELATIONS
Cover Artist: Clyde Caldwell
Ebook / 2017
Three Powerful Science Fiction Classics
Cover Artist: Unknown