Slave Market
A few of them went back to the safe lands. But once the word spread about the possibility of joining without sacrificing a human, many people travelled to the new settlement and hunted small monsters or bought some monsters captured by the guilds.
After three days, the undead monsters were finally released to patrol the entire lands, more than two thousand but all creatures of rank D or inferior. Yet, Gremory can feel when his creatures die, so it also works like an alarm.
Leaving someone fast that could reach any point would be required, to check every time some monster die since they can't and don't know how to speak. Kalamernos was the ideal for this mission, but his assassin skills can be advantageous in other moment, so Gremory decided to leave Berch here.