Three

"This is a record of the apocalypse."

Charlotte said this as the surrounding scenery began to dim. Lu Ban and she returned to that expanse of blinding white.

Lu Ban felt a sense of detachment, as though someone had scraped across his mind with a comb, smoothing out all its winding grooves. Everything he had just seen and heard was extracted from his brain. Aside from remembering that he had witnessed the arrival of an apocalypse in some otherworld, Lu Ban had forgotten every detail.

The feeling was just like when he had held that suona, or the Physics Holy Sword.

Knowledge covered his mind like a spiderweb, then was pulled away the moment contact ceased.

"So this is how the Glorious Realm preserves knowledge in these rooms?"

Lu Ban suddenly understood.

There were no bookshelves or books here in the first place. As a highly advanced civilization with an extensive understanding of otherworlds, the Glorious Realm naturally knew how to acquire knowledge while avoiding the contamination it brought.

Scholars consulted extremely secret and highly contaminating materials in these rooms. They analyzed those materials and found the answers. Once they left the room, they would forget the corresponding knowledge, retaining only the final conclusions.

It was like instilling a primary school student with knowledge of calculus. After using that knowledge to solve a problem, all he needed to remember upon leaving the room was the answer, and he could solve complex problems.

The human thought process was itself one of reprocessing collected information. This library had been built precisely to pass down knowledge and gather information while avoiding contamination.

In this way, most scholars could come into contact with more otherworldly civilizations and think out the correct answers while suffering only a tiny amount of contamination themselves.

Moreover, this strategy