In the aftermath of the War in Heaven, a new power emerged to dominate the galaxy.

Created by the Old Ones as living weapons against the Necrons and the C’tan, the Aeldari would survive the greatest conflict in galactic history and inherit a shattered but largely empty cosmos. Over millions of years, their civilisation expanded across the stars, achieving heights of culture, technology and psychic mastery that few species have ever matched.

Yet beneath the splendour of their empire, a slow corruption was taking root.

As the Aeldari abandoned purpose in favour of excess, their civilisation descended into decadence on a scale the galaxy had never seen. The consequences would be catastrophic, culminating in a psychic apocalypse that tore reality apart, gave birth to a new Chaos God, and transformed the fate of the galaxy forever. ...