While Liu Changxu fought the late Void Refinement evil cultivator attacking the teleportation formation around the Teleportation Hall, another late Void Refinement evil cultivator attacked the City Lord's Manor and engaged City Lord Pan Wu in battle.
Liu Changxu had not expected this band of evil cultivators to include two at late Void Refinement.
More importantly, their ability to conceal themselves was so formidable that even Liu Changxu had failed to detect any trace of them.
"Senior Sister, hurry and leave through the teleportation formation! Report this to the sect!"
Unsure whether even stronger evil cultivators lurked inside or outside the city, Liu Changxu anxiously ordered his senior sister to leave at once for her own safety. He feared that if she delayed any longer, she might lose her chance.
"I'm not leaving. I want to stay with you."
"Listen to me. I'm worried Senior Brother Pan's message won't get through. Hurry and go fetch reinforcements."
Seeing Zhao Qi'er still refuse to leave, Liu Changxu grew frantic. Had she not been his senior sister, he would already have started cursing.
While they spoke, the late Void Refinement evil cultivator launched an even fiercer assault, sending countless enormous blood-red fireballs hurtling toward the Teleportation Hall.
Worst of all, a blood-colored dome of light began to materialize overhead. The cultivators and mortals within the Blood Sacrifice Grand Formation suddenly felt the blood in their bodies flow faster, soon surging out of control. Mortals with weaker constitutions burst apart one after another, turning into clouds of blood mist.
The evil cultivators' blood sacrifice of Cloud Sky City had begun.
Liu Changxu also began to grasp their intentions. They were most likely preparing to help an evil cultivator at Void Refinement Perfection break through to Integrated Body. The situation was even worse than he