The Astral Millenium is a collection of stories that focus on the chronicles of the race of Astral Cyrathilians.
The story mainly focuses on the most prominent and respected Astrals on Terrahypt: Astralius, Gabriel and The Planeswalkers. Though it also stars other characters and events such as Brock n' Mittei, Egnia, the birth of the Astralians, the fall of Icarus and many more.
Though it is named the "Astral" Millenium, the story also features many of the other Cyrathilian subtypes.
This story is the second to last of the Realms of Ragna saga.