This was normal...
As for the Nine Heavens Imperial Bloodline, in Father's words just now, experts like the Spirit Race would not think much of it at all.
As for the Sword Extinction Imperial Bloodline, although it was powerful, it shared some similarity with the Nine Heavens Emperor's: the Sword Extinction Imperial Bloodline Sikong Jing had received belonged to the Sword Extinction Emperor before he created the Burial Emperor Sword.
In other words, it was not the imperial bloodline of the Sword Extinction Emperor at his strongest.
As for the sinister spirit evil aura within the skull, it had already been tainted by Burial Emperor Sword aura. It was merely power originating from the same source as the Sword Extinction Imperial Bloodline.
The Burial Emperor Sword Sikong Jing had cultivated so far was still too weak.
"They didn't detect the presence of the sinister spirit evil aura. That means this most crucial hurdle has been passed."
Sikong Jing thought to himself, quietly clenching his fist...
"And this super expert of the Feather Alliance Hall apparently didn't discover my Demon Vein either?"
"That makes sense. On the surface, the Nine Heavens Blood Devour Magic Beast and the Lord of Ten Thousand Beasts are fused beast bloodlines. So long as I haven't fallen into demonhood, they would naturally be regarded as a form of the Lord of Ten Thousand Beasts bloodline."
"I'm human, so the other side probably thinks that even if I possess a beast emperor imperial bloodline, I can't bring out its power."
As he thought, Sikong Jing lightly shook his head...
"He told me to continue. That means, for now, he considers me an exceptional specimen among ordinary test subjects, someone like Yue Xi and my sister. And I only have three days left. Keep going... get to work!"