A Witch Shall Be Born is aConan the Barbarian story written byRobert E. Howard. First published in December, 1934.
Queen Taramis is woken in the middle of the night by a woman looking just like her, who reveals that she is Salome, Taramis's twin, and the born witch who stems from the curse on the royal family. She has let in an unscrupulous mercenary captain Constantius, and with his aid, seized the city and exiled Taramis to the dungeon.
Conan, the captain of her guard, is crucified by Constantius and rescued by wandering bandits. Meanwhile, Valerius, another soldier, hid despite his injuries, and in due course discovered the truth of why the queen had suddenly taken to the depths of evil. When Conan attacks, Valerius leads a rescue party and brings out the queen.