There weren't too many books amidst that pile, numbering just roughly twenty to thirty of them. After scanning through them, a deep frown surfaced on Zhang Xuan's forehead.
They were all relating to Saint 7-dan Phantasmal space realm, but those books were not something which Zhang Xuan would even call cultivation technique manuals. If he really had to give a name to it, they were more like 'assignment booklets'.
Written on those books were what that appeared similar to assignment questions which teachers would pass down to their students in his previous life. All in all, there was only a single book that could be said to be useful.
"This…" Zhang Xuan shot a deep look at Zhang Wuchen.