Exile's song

Margaret Alton is the daughter of Lew Alton, Darkover's Senator to the Terran Federation, but her father is extremely secretive about the obscure planet of her birth. So when her university job sends her to Darkover, she has only fleeting, haunting memories of a tumultuous childhood. But once under the light of the Red Sun, as her veiled and mysterious heritage becomes manifest, she finds herself trapped by a destiny more terrifying than any nightmare! Sequel to "The Heritage of Hastur".