Using the key for the treasure vault, Ling Feng opened the eighth layer where arrays of bookshelves stood, each laden with volumes of Secret Technique Manuals.
At first glance, even the least valuable among them were Xuan Rank low-level Martial Techniques or Cultivation Techniques, and there were even covetable secret techniques!
Undoubtedly, the secret techniques were the best, followed by techniques for using physical strength, then techniques for employing Attribute Elemental Power, and then movement techniques. Cultivation Techniques and Body Refining Techniques were not part of Ling Feng's consideration.
Since Ling Feng already possessed the quite impressive "Xuanyuan True Technique" and "Eight Desolate Body Forging Technique," ordinary techniques hardly caught his eye.
After spending more than half an hour, Ling Feng reached the end of the treasure vault, having selected eight secret manuals, three of which were secret techniques.