Book 2 in the Dark Imperium series.
In the void and upon the worlds of Greater Ultramar, the battle for the
Imperium continues.
Intent on rebuilding his home realm and using it as a base to
reconstruct the ravaged stellar empire of mankind, the returned primarch
Roboute Guilliman proceeds with his war to drive Mortarion and his Death
Guard Traitor Legion from the domain of the Ultramarines.
But when Guilliman brings his brother to battle upon the diseased plains
of Parmenio, the intervention of a greater power in their fraternal
struggle threatens to upend the Imperial Regent's understanding of the
galaxy, and his place within it.
Primarchs and ideologies clash in this second, thrilling part of the
Dark Imperium trilogy.