Yun Nian suddenly thought of the Formation within Huan Yuan Valley. If this place could affect the Formation over there, then just how powerful of a Formation must this be...

Could it be that there is really no way out?

Just at this moment, a shrill whistle suddenly pierced the night sky, followed immediately by tremors in the ground, and a powerful wave of corpse qi swept toward this direction.

A Flying Sword streaked across the sky. Accompanied by that intense aura, the crowd of Hehuan Sect Cultivators in the City of the Dead could not help but look up. The next moment, a stunningly handsome man in purple robes landed, appearing as if a Heavenly God had descended.

Qi Rou stared at the newcomer in a daze, her heart skipping a beat.

"Elder... Elder Xu Xu, why have you come in person?" Qi Rou forced herself to remain calm and smiled, saying, "Could it be that you are worried about This servant?"

The casual air that Elder Xu Xu once possessed was gone from his face, replaced by a gaze filled with coldness: "Where is she?"

Knowing she could not avoid it, Qi Rou simply bit the bullet and said, "She has already left my Huan Yuan Valley. I never harmed a single hair on her head. Even if you, the Sword Immortal, are anxious, there is absolutely no reason to pin the blame on my Hehuan Sect!"

After speaking, Elder Xu Xu let out a cold snort and then said, "If not for you abducting her to this place, how could this situation have happened? I will ask you one more time: where is she now?"

At this moment, Elder Xu Xu no longer felt like a Heavenly God descending; a powerful Killing Intent surged from his body, nearly scaring the wits out of the Hehuan Sect minions nearby.

Meeting Elder Xu Xu's piercing gaze, Qi Rou felt a wave of trepidation and said, "I don't know... By the time I returned, she was already no longer in Huan Yuan Valley."

Elder Xu Xu's brows furrowed.

He could not contact Yun Nian right now. If she were not in Huan Yuan Valley, then it could only mean... she was in this City of the Dead.

Elder Xu Xu calmed his emotions and continued, "What is the situation with the City of the Dead?"

Seeing that Elder Xu Xu had withdrawn his Killing Intent, Qi Rou stabilized herself slightly and said, "This place... has a three-hundred-year-old major Formation."

"Three hundred years," Song Li, who had changed into casual attire, followed closely behind Elder Xu Xu. "Does that mean the Formation existing here has never been discovered in three hundred years?"

Qi Rou frowned: "The City of the Dead is a place for dumping corpses. For many years, it has been surrounded by corpse qi. Apart from those weirdos from the Corpse Refining Sect, who would be willing to come to this place?"

"Since there is a Formation, there must be someone who set it up. Have they been found?" Song Li asked again.

Hearing this, Qi Rou shook her head: "This Formation is intricate and complex, and it is nourished by corpse qi every day. If the eye of the Formation cannot be found, it is very difficult to break."

Qi Rou's attainments in Formations were already among the top in the Cultivation World. If even she considered the Formation troublesome, then it was truly difficult to handle.

Meanwhile, following the arrival of Elder Xu Xu and Song Li, people from other Sects and Sects arrived one after another.

Seeing the expanse of green light in the distance getting closer and closer, Xi Mo could not help but frown.

"What is that?"

"Zombies," Yun Nian said in a low voice, frowning: "The City of the Dead is covered in corpses, and the terrain and environment are extremely easy to nourish corpses, making mutations likely. It is the place that the Corpse Refining Sect likes to visit the most."

Watching the green light ahead getting closer, the two could see more clearly. That expanse was made up of thousands of Green-Haired Zombies. Yun Nian's brow furrowed even tighter.

"Raising so many Green-Haired Zombies, I'm afraid the City of the Dead is inhabited by a bunch of people from the Corpse Refining Sect!"

"Run!"

Xi Mo shouted. The next moment, he summoned his Flying Sword. Just as he was about to take Yun Nian and leave quickly, there was another tremor behind them. The two immediately turned around to look, and the same expanse of green light was rapidly approaching.

"There really is no escaping now." Yun Nian gritted her teeth, and the next moment, she drew the wanghen blade.

Xi Mo also took his long sword into his hand: "We have no choice but to fight."

As the horde of corpses rushed up, Yun Nian and Xi Mo immediately threw themselves into the battle. Fortunately, they were Green-Haired Zombies with mild levels of zombification, so the two were not struggling too much to deal with them. However, the number of the corpse horde was truly too great. After killing one wave, another wave surged up behind it. As time went on, the two felt somewhat overwhelmed.

"These things can never be killed off!" Xi Mo slashed through the waists of three zombies with one sword strike and looked toward Yun Nian, only to see the blade in her hand pause. At that very moment of her distraction, a zombie lunged toward the back of her neck to bite her.

"Yun Nian!"

Xi Mo immediately kicked away the zombie in front of him, leaped over, and split the zombie behind her in two.

Yun Nian reacted, immediately hacked the Green-Haired Zombie in front of her to pieces, and then immediately went to deal with the others.

Watching her abnormal behavior, Xi Mo frowned, but the current situation did not allow him to be distracted. He gritted his teeth and forced himself to throw himself back into the battlefield.

For three consecutive hours, the corpse horde seemed endless. Both of them were exhausted, but seeing Yun Nian's face turn pale again and her aura become unstable, Xi Mo immediately went over to help her alleviate the pressure around her.

"Hold on a little longer. After dawn, the Yang Energy will be strong, and these zombies should leave," Xi Mo said.

Xi Mo did not know that at this moment, Yun Nian's vision was blurry, and the world before her eyes was occasionally covered in a layer of red.

Yun Nian knew that the Bone Burying Wolf was incorrigible and was testing her once again.

Her chest heaved violently, and Yun Nian gripped her blade tighter and tighter, to the point where the bulging veins on her hand were visible.

Sensing Yun Nian's abnormality at this moment, Xi Mo could not help but call out again: "Yun Nian? Yun Nian?"

Suddenly coming to her senses, the strength in Yun Nian's hand loosened. Even though her brain was in severe pain, she still raised her blade and charged toward the corpse horde again.

Once dawn comes, perhaps it will be better.

As the darkness of the sky slowly faded away, the Green-Haired Zombies on the ground began to stop increasing. A glimmer of hope ignited in both their hearts; however, the very next moment, a flash of red light caused both of their bodies to tremble.

Within their line of sight, the Red-Haired Zombie's figure was twice as large as the Green-Haired Zombies, and the intense corpse qi surrounding it was comparable to the Golden Core Stage!

As the Red-Haired Zombie approached step by step, the Green-Haired corpse horde gradually retreated and finally stopped in front of the two.

The Red-Haired Zombie turned its head, and those hollow eyes looked directly toward Xi Mo.

Xi Mo gritted his teeth and gripped the sword in his hand tightly: "Let's fight it to the death!"

The next moment, the zombie raised its hand and smashed it toward Xi Mo, carrying thick, uncomfortable corpse qi. In the blink of an eye, it was already above Xi Mo's head.

Xi Mo forced his body to jump away quickly. The zombie's punch landed, smashing a huge pit into the ground.