Whose holy book does not speak of the destruction of evil? They all do.
Those with knowledge of self shall heed the many signs before this day. They will be the cure. They will have thought it, spoke it, consumed it, worked it, studied it, communed with it and called upon it. Being in tune with Earth and Universe they shall feel black matter surging. And when the sky parts, there will be exultation. The antidote's emerging, the last nutrient in the cure, will signal the Dark Age of demon beings is over.
All that remains is the sentencing to the final fate.
After no deliberation, from the belly of the beasts will come the voice of children who will speak as one.
The Avenger will engulf you and sweep you out of here and into a black hole. Yes you will descend into blackness because you were born of a black womb. Never knowing harmony on any level in any way, during your grown up days, you, will, die, un, learned.
Immediately each beast will transform into its original unthreatened state - a family, extensive and whole. The family is the beast that always defeats what threatens its natural existence. Each nutrient supporting the other.
And on the seventh day, children will be born singing of the promises they helped create. All of them will be descending. There will no longer be any need for them to be concerned about defending. They will safely return to evolving because the one nation will be surrounded by nutrient-strong sentinels, watchers and gatekeepers. I will be there on the northern arc with the latest pair of blackness wings as freedom rings loudly once again from every motion of every being.