The pdf portrays one of the major players of the Obsidian Twilight setting, Asi Magnor is a CR 30 mummy-king with a quite complex stat-block befitting of such a big baddy. The entry comes with a short history of the villain as well as some magic items of his regalia.
The sanctity of the world known as Abaddon was shattered when a global apocalyptic event of a meteor impacting the planet causing a destructive ecological and eldritch change. Now there is no day or night, just never ending twilight. An undead world ruled by fear and horror. Undead nightmares prowl the darkest forest with malevolent ghouls, grim demonic fiends and horrific vampires prey on a fearful populace. The world is dominated by the monstrously powerful immortal vampiric lich lord known as Calix Sabinus reigns supreme over this world. And with all this the mysterious force known as Nightwall. Evil dominates the world to be challenged by noble heroes fighting to take back a world that should belong to them. Are you willing to take up the fight?