"Observation and experimentation," the man said in a deep voice. "Kind of like your Professor Stein, minus the Madness." Rex felt his blood run cold.
"How do you know about the DWMA?" he asked. The man chuckled.
"You can smell me, boy," he said, "but you cannot see my soul."
"Out with it, or I'll pound you into a puddle of blood and rusty armor!"