"My lord, the Demon Worm Clan has discovered a Void Immortal Cave Mansion in Niujiao Mountain, and is gathering the top powerhouses of the Demon Worm Clan to explore the Void Immortal Cave Mansion, once the Demon Worm Clan obtains the inheritance of the Void Immortal Cave Mansion, the power will rise sharply, which is extremely unfavorable to our Demon Clan, so I will contact the Lord as soon as possible, let the Lord report to the Demon Lord, gather the strength of our Demon Clan, and make every effort to prevent the Demon Worm Clan from obtaining the inheritance of the Void Immortal Cave Mansion!" Yang Rui looked at Zhang Haiming with a solemn expression and said.

"Void Immortal Cave Mansion, what you said is true!"

Hearing Yang Rui's words, Zhang Haiming's face changed slightly, and he asked loudly with a solemn expression.

"It's true! I'm willing to take responsibility for what I say!"

Yang Rui responded loudly, and recounted in detail the rescue of Star Rain City, the killing of Mu Siyuan, and the capture of Seven Star Mountain, so as to prove that he was not lying!

"Zhang Tianyu, you have done a good job! If the matter of the Void Immortal Cave Mansion is true, neither I nor the Demon Lord will forget your merits! Of course, if your news is fake, you will be severely punished!"

Hearing Yang Rui's words, Zhang Haiming said in a solemn tone.

After speaking, Zhang Haiming directly closed the communication with Yang Rui, and immediately contacted the demon lord to report the information of the Void Immortal Cave Mansion to the demon lord.

"The rest of the things are not something I can participate in, I just need to wait quietly for the result!"

Yang Rui put away the communication jade slip, muttered softly, and left the Seven Star Mountain with the remaining more than 50,000 elite demon cultivators under his command, and returned in the direction of the demon army camp.

When Yang Rui returned to the barracks to wait, the Demon Lord took Zhang Haiming and other ten half-step Chaos Realm powerhouses to Niujiao Mountain, which ranked second in the Demon Worm Clan, to check the situation in the Void Immortal Cave Mansion.

Enemy attack! Enemy attack!

As soon as the Demon Lord and Zhang Haiming and his party entered within 3,000 miles of Niujiao Mountain, they were discovered by the spies of the Demon Worm Clan, and the alarm was raised as soon as possible.

Immediately afterwards, the Insect Emperor took twenty half-step Chaos Realm monks and more than three hundred Cave Heaven Realm monks out of Niujiao Mountain and took the initiative to meet the Demon Lord and his party.

"The Worm Emperor and the Cave Heaven Realm powerhouses above the ninth layer of the Demon Worm are all concentrated in Niujiao Mountain, it seems that there is a chance that there is a Void Immortal Cave Mansion on Niujiao Mountain!"

Looking at the Insect Emperor and his party who were approaching quickly, the Demon Lord's expression remained unchanged, a look of surprise flashed in his eyes, and he muttered softly, and asked Zhang Haiming and the others to send a message to the Demon Clan's Cave Heaven Realm monks, asking them all to come to Niujiao Mountain to gather.

"Demon Lord, what is the matter with you coming to our Oxhorn Mountain, do you want to start an all-out war with our Demon Worm Clan?"

The Insect Emperor stopped a kilometer away from the Demon Lord and asked loudly with a sinister face.

"Worm Emperor, a Void Immortal powerhouse of our Demon Clan, left a Void Immortal Cave Mansion in Niujiao Mountain, our Demon Clan wants to enter Niujiao Mountain and find the Cave Mansion of our Demon Clan's Void Immortal Powerhouse, please make it convenient!"

As soon as the Worm Emperor's voice fell, the Demon Lord said with a calm face.

Hearing the words of the Demon Lord, the Worm Emperor immediately knew that the existence of the Void Immortal Cave Mansion in Niujiao Mountain had been leaked, his face changed slightly, and he shouted loudly: "Demon Lord, Niujiao Mountain is the territory of our Demon Worms, and you Demon Clan will never be allowed to enter it, if you don't want to start a full-scale war with our Demon Worm Clan, it is best to leave immediately, don't pay attention to Niujiao Mountain, otherwise our Demon Worm Clan will start a full-scale war with your Demon Clan, and fight to the death!"

As soon as the Worm Emperor's voice fell, the Demon Lord said in a flat tone: "An all-out war will be an all-out war, will our demon clan still be afraid of your demon insect clan! Today, our demon clan must enter Niujiao Mountain, otherwise today is the day of the decisive battle between our demon clan and your demon insect clan!"

"Demon Lord, since you want to find death, then don't blame me for being rude!

Hearing the words of the Demon Lord, the Insect Emperor's eyes flashed with a fierce light, and he ordered loudly in a cold tone.

Immediately afterward, the half-step Chaos Realm monk and the Cave Heaven Realm monk who only saw the Demon Worm Clan immediately flashed, forming a large array, surrounding the Demon Lord and Zhang Haiming and other demon powerhouses, wanting to bully the Demon Lord and his party on the spot.

Whoosh! Whoosh!

At this moment, a crisp sound of breaking the air galloped from afar, and a famous Demon Clan's Cave Heaven Realm powerhouse galloped from afar, landed nearby, agitated the mana in his body, released a terrifying momentum and coercion, and crushed towards the Demon Worm Clan's Cave Heaven Realm powerhouse.

Soon, more than 200 Demon Clan's Cave Heaven Realm monks rushed to the scene and confronted the Demon Worm Clan's Cave Heaven Realm monks, as long as the Demon Lord gave an order, they would launch a fierce attack on the Demon Worm Clan's Cave Heaven Realm monks.

"Worm Emperor, the Void Immortal Cave Mansion is not exclusive to your Demon Worm Clan! Our Demon Clan must participate in it and share the Void Immortal Cave Mansion with you, otherwise our Demon Clan will start an all-out war against your Demon Worm Clan!"

Seeing that more than 200 of his own Cave Heaven Realm had arrived, the corner of the Demon Lord's mouth showed a faint smile, and he said to the Insect Emperor in a flat tone.

"The Void Immortal Cave Mansion was discovered by our Demon Worm Clan, and if you Demon Clan threaten a few words, you will enter the Void Immortal Cave Mansion and share the inheritance of the Void Immortal Cave Mansion with our Demon Clan, which is simply delusional!" The Worm Emperor frowned slightly, and said loudly in a cold tone.

"Our demon clan can give you a hundred high-grade Dao weapons as a reward for your demon worm clan to be the first to discover the Void Immortal Cave Mansion, if you still want more, then I'm sorry, let's go to war directly!"

Hearing the Worm Emperor's words, the Demon Lord pondered for a moment and took a step back.

"Deal!"

The Worm Emperor glanced at the Demon Lord deeply.

After receiving the Worm Emperor's affirmative answer, the Demon Lord waved his hand, and a hundred high-grade Dao weapons flew out of his spatial ring, flying straight towards the Insect Emperor's body, and were casually included in the spatial ring by the Insect Emperor.

"The Void Immortal Cave Mansion is in the depths of Niujiao Mountain, and it is shrouded by a huge prohibition, and it is impossible to enter it! If you demon clan have a formation mage, it is best to call it over and join forces with the formation mage of our demon insect clan to break the ban, otherwise we will not be able to enter the Void Immortal Cave Mansion!"

After the Insect Emperor put a hundred high-grade Dao weapons into the space ring, he said to the demon lord with a flat face.

Hearing the Worm Emperor's words, the Demon Lord nodded slightly, and then gave an order to call the Demon Clan's formation over.

After that, the Demon Lord took the ten half-step Chaos Realm monks under his command and more than two hundred Cave Heaven Realm monks such as Yang Rui, as well as hundreds of array mages, slowly entered the Niujiao Mountain and walked straight to the depths of the Niujiao Mountain.

"This is where the Void Immortal Cave Mansion is located, it is shrouded in a powerful prohibition, and it is impossible to enter it, and the formation mages of our Demon Worm Clan are trying to find a way to break the prohibition!"

Seeing the Demon Lord and his party, the Worm Emperor pointed to a mountain peak not far away, and said in a calm tone.

"Go break the ban!"

Hearing the Worm Emperor's words, the Demon Lord waved his hand lightly, asking more than a hundred Demon Formation Mages to find a way to break the ban.

Yang Rui, who was mixed with the cultivators of the Demon Cave Heaven Realm, looked at the prohibition on the mountain peak not far away, a fine light flashed in his eyes, and he immediately stepped forward and said loudly to the Demon Lord: "Lord Demon Lord, I have seen the prohibition here in an ancient classic, and I know how to lift it!"

Hearing Yang Rui's words, a look of surprise flashed in the Demon Lord's eyes, and he said with a look of anticipation: "Zhang Tianyu, as long as you can break the prohibition in front of you, I will reward you with a superb Dao weapon!"

After getting the permission of the demon lord, Yang Rui immediately came to the side of the mountain peak prohibition, and quickly walked to a flaw in the prohibition, the mana in his body surged, and the light of his right hand flickered, with terrifying power, bombarding towards the flaw in the prohibition.

Boom, boom, boom!

With a violent roar, the prohibition shrouded in the Void Immortal Cave Mansion collapsed instantly, turning into countless points of light and disappearing into invisibility, and the huge mountain peak was also destroyed by the terrifying power when the prohibition collapsed, turning into countless rubble, splashing away, revealing a huge and incomparably incomparable palace, flashing with incomparable light.

Immediately afterwards, stout pillars of energy light shot out from the huge palace, forming pillars of light that pierced into the sky, emitting brilliant spiritual light, forming a dense network of light in the sky, enveloping the huge palace.

"The ban is broken!"

"The ban has been broken!"

"The Void Immortal Cave Mansion was born!"

"Void Immortal Cave Mansion! My chance has come!"

“、、、、、”

Seeing that the prohibition outside the Void Immortal Cave Mansion was broken, revealing a huge palace with brilliance, countless demon monks and demon insect monks showed expressions of surprise one after another, and couldn't help shouting loudly, their eyes full of excitement and expectation.

"Zhang Tianyu, you have done a very good job! This is the best Dao weapon God Killer Spear, it can be regarded as my reward for you!"

The demon lord chuckled, waved his big hand, and threw a pitch-black spear that exuded terrifying power to Yang Ruidao.

"Thank you, Lord Demon, for your reward!"

Yang Rui took the god-killing spear, put it into the space ring, and replied loudly with a look of gratitude on his face.

Bang! Bang!

In the midst of a crisp sound, the Cave Heaven Realm monks who tried to enter the huge palace one by one were blocked by the light net formed outside the huge palace and could not enter it, which made the other Cave Heaven Realm monks surprised, and also made the demon lord's brows furrow slightly, and he set his eyes on Yang Rui's body.

"Demon Lord, this is the Guardian Array of the Void Immortal Cave Mansion, I haven't seen it, and I can't break it!"

Feeling the gaze of the demon lord, Yang Rui immediately shook his head and said.

Hearing Yang Rui's words, the demon lord retracted his gaze with some disappointment, and then turned his gaze back to the huge palace, considering whether to take action in person, try the void reality of the Void Immortal Cave Mansion's guardian array, and see if he could break it.

At this moment, a burst of light flashed in the huge palace, and an old man in a cyan robe appeared above the huge palace, and said in a flat tone: "The Void Immortal Cave Mansion will be opened in an hour, and the first 100,000 people can enter it, and after that, those who enter will be killed!"

As soon as the voice of the cyan robed old man fell, a light gate as high as three zhang high and two zhang wide was condensed above the huge palace, flashing with brilliant light.