"It's normal not to send spies. The Undead are likely to soul-search. But as long as you don't kill them, it's fine. Living people eat, drink, defecate, and urinate, leaving traces behind. Even if you ignore these people, they will occupy a large area, thereby encroaching on your space. It's a no-win situation."
"Yeah, it took me many years to understand this. Do you know who were the first few batches of people who fled here?" Rogge said with a bitter smile.
"When we were active in human territories, didn't we adopt some native Undead? They all have families. The first few batches of living people who were driven here were their relatives. We didn't just refrain from killing them; our Witch companions who looked like they were in their forties had to take care of the grandchildren of their eighty-year-old children. If their sons died and their grandchildren grew up, they even had to find wives for their grandchildren and figure out how to provide for the newborns..."