The Ancient Sect needed Gu An to turn his exploits into a book, and naturally, Gu An wouldn't refuse such a request—it wasn't like he was being asked to portray the Ancient Sect as the lead character in "The Investiture of the Gods."
In exchange, the Ancient Sect would elevate Gu An's status to that of an Outer Disciple, and gift him a Medicine Valley that was twice the size of Profound Valley.
Half a year later, Gu Yu would come to find Gu An with the items.
Trading the writing of a book for a Medicine Valley, Gu An felt it was a good deal, since he usually had nothing better to do.
That evening, when Du Ye returned to his room, he pressed Gu An to disclose what the Ancient Sect wanted from him.
"Sect secrets, are you sure you want to pry into them?" Gu An asked meaningfully, which scared Du Ye so much that he shivered and dared not inquire further.