France, mid-14th century. In Europe, the plague is raging and the fires of the Inquisition are burning. The Prince of Wales's troops carry out devastating raids on the territories bordering Aquitaine. And amidst all this orgy of death, the few who hold in their hearts the hidden wisdom of the ancients and the ability to withstand the cruelty of the world are a race of ancient magician-seers living in a separate caste. One of them, a girl born into a simple peasant family, is destined for the mission of becoming the greatest priestess, but on the path of spiritual elevation she will face difficult trials of both soul and flesh.