C491 North of the Vast Peak of the Celestial Pool!

Yun Chen did not know that Loong Ling'er had stayed behind and was still thinking about something. At this moment, he had already completely fallen into the sea of books.

There were a lot of books in the Jing Country's Book Collection Vault, and there were naturally a lot of things recorded in them. However, Yun Chen had never found what he wanted. However, he was not in a hurry. After all