Throne of Light: Dawn of Fire: Warhammer 40,000, Book 4 (Unabridged‪)‬

Roboute Guilliman has broken the orkish advance that threatened Fenris, but an ancient foe has returned to threaten the very heart of humanity—the Segmentum Solar.

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Guy Haley continues the riveting story of the Indomitus Crusade as it sweeps across the galaxy, still reeling from the opening of the Great Rift.

The story:

The Indomitus Crusade continues its war across the stars. The primarch Roboute Guilliman has finally broken through the orkish threat bedevilling the sectors near Fenris, and makes ready to push on his bid to stabilise the Imperium Sanctus—but old and bitter foes stand in his way.

Kor Phaeron, the Dark Cardinal, threatens the previously stable core of the Segmentum Solar. Waves of rebellion instigated by his infiltrating priests suggest an imminent, large-scale invasion by the Word Bearers Legion. Worse yet, the Dark Cardinal's warriors are targeting the Black Ships, threatening to starve Terra of the pyskers the Emperor needs to survive.

Through this turbulent warzone, Inquisitor Rostov continues his search for the Hand of Abaddon. Yet when strange, miraculous visions are traced back to the astropathic relay on Srinagar, his quest is diverted—for the visions foretell hope for the Imperium, a hope the fanatical worshippers of Chaos will do anything to snuff out....