At the dawn of the forty-first millennium, Lord Commander Macharius and his forces embark upon the re-conquest of over a thousand worlds. A man of steel and fire, Macharius is the only one with the will to lead the massed armies of the Imperium to victory. As the crusade rolls onwards, it reaches the world of Karsk. In the city of Irongrad, the Imperial forces face the crusade’s end, unless Macharius and his army can defeat the dreaded Angel of Fire.

Read it because

It's the first ever fictional exploration of Lord Commander Solar Macharius, one of the Imperium's greatest heroes and through the eyes of some of his closest companions, you'll get to see the man behind the myth.