Chapter 89: Wind and Cloud, Light and Dark

After paying tribute to Erza, Xu Xuan opened the Western tomes and materials.

Some of the materials piqued Xu Xuan's interest, but as for the tomes... most were very ordinary.

"The limit of this world is still too low," Xu Xuan thought to himself.

Sometimes, searching for these tomes was like panning for gold in feces, where gold was scarce and feces abundant.

After all, ancient cultivators were few, and in most cases, they did not have a systematic approach, relying on their own imaginations to understand the world. Only the truly rare geniuses could perceive the essence of the world and create powerful cultivation techniques.

As for the materials, one kind was a fingernail-sized silver metal with a dazzling luster, extremely hard in texture, known as Mithril, the production method of which was also brought by Erza.

The method for making Mithril was simple, requiring only a ratio of eight parts silver to one part mercury, and then catalyzed by the Philosopher's Stone.