Marvel Comics tells the story of Marneus Calgar, the legendary Chapter Master of the Ultramarines. Taking a deadly gambit, Marneus Calgar returns to the moon where it all began…and an enemy who has been in hiding for centuries! Can he quell the threat of this darkest power? There will be no mercy. There is only war.
Kieron Gillen (author), Jacen Burrows (artist) 112 pages in 5 issues
