Acorna's world - Anne McCaffrey

Although she has made peace with her Linyaari heritage, Acorna knows that only by returning to the frozen stillness of space will she ever truly feel at home. But the solitude she desires must wait.

Answering a faint distress call leads Acorna into a strange, intoxicating perfumed world of intelligent and sentient plants. There she finds a burned-out space ship with all the signs of a Khleevi attack. And suddenly all that Acorna holds dear is in grave peril. Because the devastation that was wrought here was no isolated occurrence, but the opening move in a planned onslaught that will decimate the two races to which Acorna is culturally, emotionally and genetically tied.

Facing the annihilation of both her races, Acorna must discover the Khleevi's weakness - and strike first.