Andre Norton’s 19661 Victory on Janus returns to the bleak world of 1963’s Judgment on Janus . Victory isn’t as grim a book as Judgment, but it is still nothing like upbeat.
The Ift, reborn in commandeered and transformed human bodies after millennia of extinction, are still a mere handful. Lacking numbers, their survival is due only to the fact the human colonists on Janus are largely unaware of and consequently indifferent to the alien revenants.
Or rather, were. Now the colonists are burning the vast forests around their settlements. If the Ift cannot find out why the humans are doing this, and convince them to stop, then it is only a matter of time before the Ift are cast back into unending darkness.