Crowned as the new Emperor of Imperium Secundus, Sanguinius of the Blood Angels faces the very real threat of betrayal from within his new realm. As ever, it falls to his Sanguinary Guard to protect the primarch, and Commander Azkaellon must resort to the most dire of measures. Not only is this story a fascinating glimpse into the mind of the Blood Angels Primarch, it also shines light on the origins of another well known character in the history of the IX Legion...