Dark Angels - Fallen Angels: As the solar decades since the Fall of Caliban turned to Terran centuries, the Inner Circle took shape. It grew from an ad hoc conclave to a formal, if still furtive, organisation that spread through not just the Dark Angels, but their Successor Chapters as well. With no homeworld save The Rock, recruitment planets were founded and new generations of Dark Angels were added to replace those lost in battle.The regimens and drills of the Chapter were strict, with special emphasis on brotherhood and loyalty, ideals passed directly on to their Successor Chapters as well. However, the Masters and elder warriors who led the instruction told the Neophytes nothing of the sins of their forefathers.By the halfway point of the 32nd Millennium, only a few interred within the sarcophagi of Dreadnoughts were left of those that survived the Battle of Caliban. The truth of what occurred and knowledge of the Fallen became secrets carried only by the small number of Inner Circle brethren within each Unforgiven Chapter.As Veterans rise through the unseen levels of trust, more of the truth is gradually revealed to them by ranking members of the Inner Circle. Only then will they realise that in the millennia since the Fall of Caliban, the sons of the Lion have been fulfilling their duties to the Emperor while at the same time carrying out a hidden agenda, scouring the galaxy for signs of their corrupted kin.Whether operating alone or in small bands, each of the Fallen has found their own way of surviving the millennia since Luther's betrayal. A great many have embraced the power of the Dark Gods, becoming true Heretic Astartes, and in the wake of the Great Rift's birth some of these have even ascended to daemonhood. Others have surfaced as leaders of some piratical or cultist cause, or have been discovered attempting to live a nomadic existence on the fringes of the Imperium. A notable few have risen to be tyrants of entire planetary empires, with multiple worlds at their command.As time means nothing in the Warp, sometimes a Fallen appears upon a world having just, to his frame of reference, been plucked from the disintegrating surface of Caliban. That thousands of intervening Terran years have passed are, to him, just the blinking of an eye within the abyss of insanity that is the Warp. Usually driven wild with rage, such individuals launch themselves upon the hapless servants of the Imperium, becoming a terrible force of vengeance and raving aloud those secrets the Inner Circle have worked so long to keep silent.There are those amongst the Fallen who regret their betrayal of their primarch. Unable to reconcile themselves with their former order, they lead a forlorn, hunted existence. Many become mercenaries or Rogue Traders, roaming the edges of the galaxy as masterless men. Some attempt to atone for their sins, integrating themselves into Human societies to work towards a noble cause.The Dark Angels often go for standard years, even solar decades, without finding any rumours or clues as to the whereabouts of one of the Fallen. When traces of the Fallen are detected, the Ravenwing and Deathwing are deployed. While both companies have gained fame for their many triumphs against the Imperium's enemies, it is for the Unforgiven's nefarious task that they are truly trained and equipped. The Ravenwing are the ultimate hunters and scouts, harrying their quarry into a position of vulnerability before their brothers in the Deathwing arrive, the mailed fist brought swiftly down to inflict the killing blow.Any captured Fallen are taken back to The Rock. Deep inside its dungeons, Interrogator-Chaplains inflict terrible excruciation in order to force their disgraced kin to repent. Occasionally they do, and for their pains, they die quickly. More often than not, however, the captured Fallen refuses, and suffers a long, drawn-out and agonising death at the hands of those who would save his soul.Many of these defiant Traitors meet their ends with curses upon their lips, knowing their corrupted souls will find a different kind of salvation in the Warp, while others simply accept it as the price they pay for cleaving to the beliefs that led them to betray their brothers in the first place.