Yuan Ming glanced at the iron nail a few times, and soon stopped paying attention to it, his gaze shifted to the last jade scroll.
He activated his Divine Sense to delve into it, and a pleased expression appeared on his face as he finally found something useful.
This jade scroll contained a cultivation technique known as "Ghost Spirit Skill," which, according to the description at the end, was a splendid inheritance of the Black Fire Sect. The scroll recorded mnemonics from the Qi Refinement Realm to the peak of the Foundation Establishment, having significant value.
The "Ghost Spirit Skill" also included some secret techniques for refining corpses and insights into corpse control, presumably written by the Bone Map. Yuan Ming truly broadened his horizons with the subtle refinements detailed within, and gained a preliminary understanding of the Black Fire Sect's corpse control secret techniques.