After quite some time, the mass of Supreme Demonic Qi being tempered finally changed. The aura of essence blood seeped out of it, then began gathering and condensing into essence blood.
Huang Xiao was very familiar with the aura of this essence blood. It belonged to the previous Demon Hall Master, his own patriarch.
After calming himself slightly, Huang Xiao continued controlling his heart fire to temper another mass of Supreme Demonic Qi. He also needed to reverse-refine this mass and extract the essence blood fused into it.
Once Huang Xiao obtained this essence blood, he directed the hard-won blood toward his heart, then used it to ignite his heart fire.
The heart fire ignited with his patriarch's essence blood was immensely powerful, countless times stronger than when ignited with his own essence blood.
Without any hesitation, Huang Xiao carefully guided this heart fire into his meridians.
He directly selected a mass of Supreme Demonic Qi whose power had weakened through the reverse refinement just now, then tempered it with his heart fire to refine it anew.
Under the fierce burning of his heart fire, even the Supreme Demonic Qi finally found it difficult to resist and slowly began to be refined.
Getting a strand of Supreme Demonic Qi refined by my own hand really isn't easy, Huang Xiao thought with deep feeling as he sensed the refined strand in his dantian.
When he had faced Chao Hun, a single strand of Supreme Demonic Qi had played a major role.
Thus, these were his trump cards. He had to plan for the future and wanted to store a few more refined strands of Supreme Demonic Qi in his dantian.
Only Supreme Demonic Qi he had refined himself could remain peacefully in his dantian, and only that was barely within his