The Shadow Dwellers had seen the light from the terrestrial realm. They tore open Rifts in Hell to pass through. They invaded without mercy and slaughtered the terrestrial realm's inhabitants. It was only during their slaughter that the dreaded Doom Slayer arrived. In the terrestrial realm, there was nowhere left to run. The Shadow Dwellers' cowardice could assist them no longer as they were left alone to die cowards' deaths. The Doom Slayer grew in power with every coward he slew.
