Years of Doubt

The Years of Doubt were the forlorn years of the existence of the Midnight Claws Space Marine Chapter. After having endured an Ork WAAAGH! during the Siege of Hexodivus and suffering the loss of both their fortress-monastery and all their senior Chapter leadership, the Chapter faced it's most trying times. Bereft of solid leadership, the Chapter soon fell into an inter-Chapter schism, that saw several battle-brothers depart the Chapter and later form their own Chaos Warband. During the following millennium, the events of what exactly occurred went unrecorded (or were purposely purged), but whatever transpired had a long-lasting effect on the Chapter.

History
It is unknown what occurred during the 37th Millennium, as all files regarding this time were burnt due to unknown reasons by the Head Chaplain at that time, whose name was lost in time. Current Apothecaries and Librarians of the Chapter suspect that the records were purged due to the possibility that the critical flaw in their gene-seed appeared at that time and the near-annihilation of the chapter for an unknown reasons.