The demonic energy within the demon energy is extremely potent, even high-level demon cultivators of the Divine Domain cannot withstand it. However, those who entered are demon heads past the Late Stage Peak Tenth Rank of the Divine Domain, so they don't fear this demon energy.
Moreover, this demon energy is a treasure to these demon heads.
If one can cultivate in this demon cave for a hundred years, it absolutely equals a thousand years of cultivation outside.
As Huang Xiaolong flew, he operated the Asura Technique, absorbing this demon energy into his body, then refining it. After refining, Huang Xiaolong felt a secret joy in his heart, as indeed, the energy contained Hundred Spirit Demon Qi!
Although the Hundred Spirit Demon Qi within was extremely faint, others might not be able to sense it, but Huang Xiaolong had refined the Hundred Spirit Demon King Demon Body before, so he was naturally familiar with this Hundred Spirit Demon Qi.
