According to the captives, they were merely low-level workers who knew only that alchemy research was being conducted but were unaware of the specifics. However, they were certain that their superiors were searching for something within certain individuals or seeking out a particular type of person.
"A particular type of person? But you’ve been experimenting on humans, and as a result, created some half-human half-beast monsters," Adrian said.
"Yes, but those individuals are considered failure