Rise of the Ynnari Book 1
When the long-lost Craftworld Ziasuthra reappears, Iyanna Arienal and Yvraine of the Ynnari lead an expedition to it in hope of retrieving the last cronesword. But why has the craftworld returned now, and can its inhabitants be trusted?
READ IT BECAUSE
It's the first post-Gathering Storm Aeldari novel, and focuses on the new Ynnari faction and their quest to reunite the croneswords and awaken their god.