Yuan Tianhe looked at the majestic building in front of him and said to Ethan Xiao with some pride: "Look, this is the essence of our Zhengyi Sect. The books here are the crystallization of all the knowledge of our Zhengyi Sect, which has been accumulated for hundreds of years."
Ethan Xiao looked up at the entire building. The first thing he saw was not its grandeur, but its defense system.
The formation is the main means of defense, combined with personnel patrol inspections and various mechanisms, to form the entire defense system.
Moreover, generally speaking, it is more strict and more important than Xiao's library.
However, the formation was not difficult for Ethan Xiao. He only needed to figure out the principles and rules, then he could find the bugs and break in silently.
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