The Sachakan War is a conflict between Sachaka and Kyralia. The events of are depicted in The Magician's Apprentice from the viewpoint of Tessia. The events of The Black Magician Trilogy are seven centuries later, and Sachaka is still hostile towards Kyralia.
|Spoilers from "The Magician's Apprentice"|
After a journey trough Kyralia, Ashaki Takado destroys Mandryn. Some Ichani help him, hoping to become Ashaki again for making Kyralia a part of the sachakan empire. When Lord Sudin, one of the defending magicians, is killed by the Ichani, the war officially starts. The Emperor of Sachaka sends more Ashaki to support the invaders, whereas King Errik joins the battle himself.
In Imardin, the sachakans are defeated and the kyralian magicians escort them to their border.
|Spoilers from "The Novice"|
|Spoilers from "The Ambassador's Mission"|
Dannyl is researching into history, especially to do with the Sachakan War as it is said Imardin was levelled during the fight there, although other research disproves this. It is then theorised that Imardin was mostly destroyed by Tagin when he died.