Aldred had learned a lot of knowledge about this continent. Corduul Thassentoth had operated a subtle mission to obtain memories from many sources. In fact, they even killed some knowledgeable individuals just to get their memories.
Though Aldred told them to control the frequency of killing because it would be suspicious. And they also avoid killing people that was too important and could cause major panic among the elite-class.
The elite-class had a lot of valuable information about the society, magic, culture, and history of this continent.
Magicians in this planet were like devoted scientist. They worked tirelessly to comprehend the laws and rules of this world, and use this knowledge to change reality itself. What they did was mind-blowing to normal people.
Back on earth, normal people could not understand the maths, physics, etc. Numbers, diagrams, and charts were like alien language for a lot of people.