The next day.
High in the vast blue sky.
Under the protection of two Half-Step Spirit Refining Realm elders from the Xiaoyao Sect, Huang Que, Xu Taiping, and more than a dozen hastily summoned Walkers from the Nine Prefectures rode in three carriages drawn by spirit cranes, racing above the sea of clouds.
Dawn had only just broken, and the morning glow dyed great swathes of the sea of clouds crimson, making it resemble a red sea-a magnificent sight.
"Sister Lingyue, does that mean the greatest barrier for a mortal bone isn't Spirit Refining, but the Transformation Realm?"
Seated in the carriage, Xu Taiping pretended to concentrate on cultivating, but was actually chatting with Fairy Lingyue.
They had only just begun discussing this question yesterday afternoon when Huang Que interrupted them, returning midway to deliver something to Xu Taiping.
"Yes."
Fairy Lingyue's voice sounded in Xu Taiping's mind.
Then she explained to him earnestly:
"In fact, the words 'mortal bones have no affinity with cultivation' on the Spirit Bone Stele truly refer to the inability to break through the Transformation Realm. In Remote Antiquity, only those who had broken through Spirit Refining were considered to have truly set foot on the path of cultivation."
"And now, although the Transformation Realm is already a very high threshold for all cultivators, the threshold facing mortal bones is more like a heavenly chasm by comparison. Not only is it extremely difficult to cross, but it is also extremely easy to perish during the breakthrough."
Since Xu Taiping was still a long way from the Transformation Realm, Fairy Lingyue did not explain in too much detail, only describing how difficult breaking through it would be.
"So if I want to be able to break through the Transformation Realm in the future, I urgently need