Inside a catacomb deep below the ground somewhere in the Mortalia Empire...
A blindfolded nun and a sleeveless robed clergyman were standing in the midst of dozens of Nightguard corpses strewn around the catacomb's ground. The two church folks were exhausted and gasping for air, which indicated who killed those vile beings.
"How many creatures did we fight just now?" asked Mother Rasmussen.
"40, commander." said Father Candor. "This was the fourth barrier we broke through and the number of demons that got summoned were 40."
"Ever since our battle after we broke the first barrier, the number of demons being summoned had multiplied by 4." said the blindfolded nun. "And based on our detection, there're still many more barriers beyond us. Hundreds more!"
"No doubt even more demons will be pouring out from the next barrier we break."
The commander of the Akeldama Order took out a piece of paper from her pocket.