1977’s stand-alone space opera Hunter of Worlds is the second of Cherryh’s two Hanan Rebellion books. It is set in the same continuity as Cherryh’s Alliance/Union works, but takes place long after the main A/U sequence.
Thousands of years ago, the iduve bestowed interstellar civilization on the amaut, the kallia, and no doubt others as well. Five centuries ago, the iduve vanished from the civilized worlds. Why they left is unknown, but few were sad to see them go. Now the iduve are back.
Kallia Aiela Lyailleue is unfortunate enough to be useful to the iduve. Chimele, Orithain of the vast starship Ashanome, demands his service. From the perspective of his relatives, this is effectively a death sentence. From Aiela’s point of view, it is a life sentence.