Conflictus Sempiterno

Conflictus Sempiterno was one of the most lamentable events in the history of the Grey Orphans Space Marine Chapter, when members of a several missing companies were found to be corrupted by the Ruinous Powers, which resulted in an internecine conflict between both Loyalists and Traitors.

Background
Having succeeded in re-establishing contact with the Imperium and having received new ships, the Grey Orphans could begin the mission for which they were created: the elimination of the heretics in the sector. During a battle against a band of cultists, Chaos Space Marines were spotted with the effigies of the 1st and 2nd Companies of the Gray Orphans. Once it was established that they were in fact survivors devoted to the chaos of the lost companies, the anger took hold of the loyalist Space Marines that pursued the treacherous brothers, regardless of the losses. The traitors fled to the warp leaving the Gray Orphans prey to their anger. Since then, the 10th Company began research to look for renegades, considered to be responsible for their mutations.