In the Chapter 1 - Battle for Ardenweald, you are summoned to Oribos to learn the dire news that Anduin has become The Jailer's pawn, and that he recently wounded Kyrestia the Firstborne and took her sigil of Bastion. Each of the Eternal Ones possesses a sigil that represents their Covenant and its purpose, but which can also act as keys to forbidden knowledge. The Jailer is after these sigils, and launches an assault on Ardenweald and Oribos in an attempt to gain the sigils belonging to the Winter Queen and The Arbiter. While the Ebon Blade protects Oribos, the player rushes to join in Ardenweald's defense against and assault lead by Sylvanas Windrunner herself. Though you do your best to defend Ardenweald, Anduin manages to get away with the Winter Queen's sigil. You return to Oribos with the news, to find the city has also just dealt with a Mawsworn assault.