Ys has fallen, murdered by her god in an act of senile vengeance. Now Gratillonius, once King of Ys, must strive to save a remnant of his people from utter destruction - then use them to rescue civilisation itself, as the light that once was Rome flickers out and barbarian night descends upon the world. In the process, he will give rise to a legend that will ring down the corridors of time.