Seraphs of the Emperor’s Judgment

Humanity has long forgotten the power of science and technology, and in forgetting so much, it can never fully reclaim what was lost. The promises of progress and understanding have faded into myth, for in this cruel and dark future, there is only war. Across the stars there is no peace—only endless slaughter and bloodshed, while the hungry gods laugh in the shadows of the warp. Soshyan Alexei, a battle-brother of the Astral Knights Chapter and the sole survivor of the World Engine campaign, bears the heavy burden of rebuilding his shattered brotherhood. Carrying a secret powerful enough to shake the entire galaxy, he steps forward into an uncertain future… — Description from novelcodex.org