Within Langya Cave Heaven, every cultivator with a Blood Spirit Yin Gu attached to them could be considered a "Life Key" to activate the Blood Spirit Ban.
Once activated, the cultivator would perish there.
Thinking of this, a thought crossed Ye Yun's mind, and he looked towards the Su Family Ancestor.
That old fellow was extremely lucky, positioned dozens of feet behind the black-robed man and temporarily out of danger.
As for the Green Water True Dragon, he was second to last in line, in even less danger.
"This Blood Spirit Ban appeared before the previous era. Do you know from which sect it was inherited?"
Ye Yun gazed at the rolling mountain ranges in the distance, a thought stirring in his mind as he transmitted his voice to the Immortal Divine Silkworm.
"Let me think... Master," the Immortal Divine Silkworm said, closing its eyes and pondering deeply.
