Their origins shrouded in mystery, the Blood Ravens Chapter are ever drawn to the pursuit of knowledge and the acquisition of ancient lore. Guided by their powerful Librarians, the Chapter fights with a precision and calculated fury, able to predict an enemy’s plans and thwart them before they come to fruition.

The Blood Ravens do not have a specific homeworld, but whether this is due to its being expunged from their history or some darker reason is unknown. Their Chapter fortress is a mighty battle barge known as Omnis Arcanum, and the rest of the Chapter travels aboard a host of strike cruisers and battle barges that travel as its escorts. The Librarium Sanctorum is aboard the Omnis Arcanum and it is here that the Chapter maintains its records of heroic deeds, lore of vanquished enemies and captured heretical knowledge.

While there is no fixed base of operations for the Blood Ravens, there are a number of planets that they consistently draw their potential recruits from, ranging from feral worlds of club-wielding savages to sprawling hive worlds. There appears to be no rhyme or reason to this process, but there are a number of worlds in particular that the Blood Ravens favour over others. Why this should be the case is unknown, but it is speculated by some that these worlds have a higher incidence of psykers than is normal, though such speculation is, thus far, unsubstantiated.

COMBAT DOCTRINE
The Blood Ravens believe in studying the enemy and predicting their movements before launching any attacks. Not for them the rampaging charge or the spur of the moment, lightning assault. This has led to some friction between other, more headstrong, Chapters who prefer a more straightforward approach to war. One Chapter in particular has branded the Blood Ravens cowards for their precise, methodical method of battle, but nothing could be further from the truth, as once the Blood Ravens take to the field of battle, they fight with a fury and zeal the equal of any other Chapter of the Adeptus Astartes.

In battle, the Blood Ravens destroy enemy units with utter ruthlessness and precision, their battle plan never varying from initial concept to final execution. Such is the depth of planning and thoroughness that every eventuality is planned for, thanks to their Librarians uncanny ability to predict how their enemies will react. They have in the past warned or responded to enemy attacks or invasions well before most Imperial sources have even been aware of them. This has led some puritanical figures to make dark mention of the tale of the fallen Primarch, Magnus, and his ultimate fate - claiming that his path to damnation began with such warnings…