An age ago, the Seaphon temple-ship Wings of Serendipitous Fire was blasted from the skies of Skyish.  Not by the powers of Chaos, but by the misplaced servants of Sigmar himself.

Now, Irixi Starseer, servant of the mage-priest Sek'atta, is sent to the ancient ruin of the temple-ship to recover a prophecy inscribed on its walls, a prophecy as shattered as the rest of the fallen vessel.

The Stormcast Vael Scar-Helm seeks the same ruin, chasing a memory that has haunted him through many Reforgings.  Simultaneously, the mage Perlo leads a group of Steelhelms to the site, pursuing rumours of a treasure beyond imaginging.

But while others seek the Seraphon's power and riches, an ever greater, more insidious enemy arises that threatens the very fabric of the Great Plan.