Inside her clan's library, Duanmu Luolan was busy reading many books, searching for formation arrays that could be used to check on the Cao Clan without having to infiltrate it.
"Mother." Duanmu Luolan turned to the young man who had just walked in. "What are you doing here? What are you looking for in all these piles of books?"
"Yuan Hao, I'm looking for an important formation, but I can't find it anywhere." Duanmu Luolan immediately explained to her son about her intentions. "Help me to look for it."
"I don't think you'll find it in them, Mother." Yuan Hao immediately went to one of the bookshelves, pushed aside all the books in front of him, and picked up an old book behind them. He then returned to Duanmu Luolan and handed it to her. "This book has older formations than the others; you may find one in it."
