Frostflower And Thorn Mass Market Paperback – November 1, 1980 by Phyllis Ann Karr
 
The sorceress Frostflower could bring a babe from seed to term in the course of a winter's afternoon. The swordswoman Thorn could strew a field with corpses in a moment's battle rage. Outcasts, both of them. Hunted by the farmer-priests who ruled the wasteland that once had been a world. Then Thorn in her folly got pregnant. Flower, in her folly, wanted the child. And together, foolishly, they set out to survive...
 
7.3