There are some Space Marine chapters that are so defined by the peoples from which they were created and the world on which those peoples lived; that their true history began millennia before the chapters official founding. Tied intrinsically to the plight of the mortal half of their lineage, chapters such as these become the embodiment of their ancestors dream of survival and vengeance, their prayers to the Emperor made flesh. In some cases, these chapters become the sole reason for their peoples continued existence, whereas they would have otherwise been lost to the indifferent eyes of history and time. This is the story of the Leonicine Inatrii, the Void Lions; those tribal Adeptus Astartes who hailed from the Jungle Death World of Zulup IX and hunt the Great Devourer within the Emperor’s domain in eternal war because of it.