- A sea animal herd ("frayas") suddenly dies during its annual migration.
- A coastal sea animal herd ("sea beefs") is behaving in a very weird way - a lot of animals have simply vanished; others that need to come up to surface for breathing every few minutes now seem to have developed some equivalent of gills.
- Flow rate of a sea current somehow ties up the relative times of the two events.
- James H Schmitz's "The Hub: Dangerous Territory".
Fact sheet.First published: Analog, May 1965.
Download full text from Baen Books.
Caution: This is a long novelette - nearly novella length.
Among the stories from Astounding/Analog issues edited by John Campbell.
Related: Stories of James H Schmitz.