Seeing that Elder Zhao wanted to ask, Chen Chen hurriedly said the contents of the secret letter.

"What, the people of the Ghost Domain are actually in Black Castle?" Elder Zhao was taken aback when he heard this.

What are you kidding, when did the people of the Ghost Domain run to the Spirit Stone Mine Cave, he knew that this matter was not trivial, and promised to send someone over immediately, and then hurriedly contacted the sect.

The sect was also taken aback when he found out, and he didn't expect the people of the Ghost Domain to run to cut off the economic lifeline of the Dan Dao sect, Xia Mingyi was furious, and hurriedly asked Elder Wu to lead the team and take a group of sect disciples to the Lingshi Mine Cave to support in the starry night.

This matter, the sect did quite secretly, because they didn't know how many ghost domain people appeared here, they just claimed to lead the team to do daily training.

Ming is very fond of Zhang Yu, this time they crossed the two domains, the main purpose is to capture Zhang Yu alive, if it can't be captured alive, it is okay to kill it, so the ghost mother takes the elimination of Zhang Yu as the first goal. Since Zhang Yu has not been found, the mission of the ghost killers has changed, and the mission of the ghost mother has become to find a forward base.

He was lucky, he actually met Zhang Yu underground, so he did whatever it took to expose himself and attack Black Fort with great fanfare, and he must kill Zhang Yu.

It's a pity that there are too few troops here at the Lantian Transit Station, if you support the Black Castle, it is easy to take advantage of the situation here, Elder Zhao for the sake of prudence, he had to stand still and wait for the team of the sect to arrive, from this time on, there are still three days for the sect to support.

There are countless fluorites placed on the flat ground around the Black Castle, and the faint light they emit makes the people on the castle see clearly, and they can already see the forward of the rats, which are very strange, and they all stop a hundred meters outside the castle.

It was particularly disgusting to see dense rats writhing together, and a distance of a hundred meters was enough to cast spells and rain of gold.

Zhao Xiao was also proficient in battle formations, and under his orders, the aura aura could be detected in the underground cavern becoming more and more tyrannical. As if sensing the danger, the rats hurriedly retreated, but it was too late.

The aura turned into a red rain of fire, instantly enveloping the area of hundreds of meters around the castle.

The terrible screams resounded throughout the underground world, and in an instant, the cultivators in the castle smelled the smell of burning, which was very unpleasant, but fortunately, Zhao Xiao had already prepared and quickly opened the Black Castle formation to isolate the stench outside.

The rats suffered heavy losses, and were reduced to ashes by the rain of flowing gold and fire, and the ashes fluttered in the hollows of the ground like snowflakes.

"It's so miserable, I don't eat barbecue anymore. An outer disciple standing on the city wall couldn't help but say when he saw the miserable situation outside.

"I hope we still have a chance to eat barbecue......!" A disciple of the outer sect next to him suddenly changed his face and pointed not far away, just at this moment, several balls of light were launched from the Black Castle to the surroundings, illuminating the entire underground like a small sun, and the two swallowed their saliva with difficulty, because the endless gray tide instantly filled the vacancy just now.

As if they didn't know what death and pain were, the rats swarmed towards the Black Castle with their corpses to extinguish the dark red flames.

Zhao Xiao stood on the tower and stared at this scene, he waved his hand expressionlessly and said, "Open the gravity array." ”

"Yes!" the disciple next to him nodded, turned around and gave the order.

For a moment, I saw complex lines light up on the ground around Black Castle, and the aura was constantly instilled into the lines. The first time he came to the outer sect, the disciples all looked at the large array outside curiously, and an inner disciple picked up a stone and said with a smile: "You look at ......"

"What are you looking at?" asked an outer disciple curiously.

The inner disciple smiled and didn't speak, he casually threw the stone out, only to see the stone flying in the air for a while, and at this moment the formation was activated, and a faint light came out.

"Bump!" The stone didn't know what it encountered, and it burst open in an instant, turning into a puff of powder, which was blown by the underground wind and disappeared without a trace.

"Is this the gravity formation?" Seeing the stone suddenly burst, those outer disciples couldn't help but exclaim.

"Of course, 20 times the gravity can make a stone burst, but what about rats?" everyone looked outside when they heard this, only to see many rats rushing into the range of the light, and they were immediately crushed to the ground and unable to move.

In an instant, a thick wall of flesh appeared on the edge of the formation.

"Squeak!" the rat screamed and was crushed into a patty, and the gray wall of flesh was spreading in this direction at a rate of several centimeters per second, and everyone was disgusted to watch.

From the sky, countless gray flesh walls were advancing, and the formation was overloaded, and it could be seen that the formation was getting brighter and brighter.

"Report, the load of the formation is too large, if it continues like this, at most half an hour, the formation outside the wall will fail. Beside Zhao Xiao, a disciple arched his hand and reported.

Zhao Xiao didn't say anything when he heard this, he frowned and looked at the outside of the castle, the boundless gray ocean, the Black Castle was like a small boat in the tyrannical ocean, and there was a possibility of capsizing at any time.

"Retreat, they retreat!" At that moment, suddenly the gray tide receded without warning, and everyone breathed a sigh of relief and cheered.

Zhao Xiao exhaled deeply, he knew that it was just a tentative attack just now, and the real battle had just begun.

Before the rats retreated, they dragged all the corpses away, leaving large patches of blood in place, making everyone shudder.

"Don't let up, these rats will attack. Some experienced inner disciples shouted loudly, and the atmosphere that had just been relieved became tense again, and everyone was busy.

In the depths of the darkness, the Ghost Mother stood on the monitor lizard's head, witnessing the whole process of the rat's attack, he touched his chin and muttered, "That's it? ”

He patted the monitor lizard, and the monitor lizard immediately walked forward obediently.

"There's someone there!" The disciple who was using the Pupil Technique suddenly saw a figure and couldn't help but shout loudly.

"Someone, where else?" Hearing the shout, the disciples on the Black Castle all looked over, and after a while, they saw a huge figure coming from the darkness.

"Fuck, monitor lizard! and cave python......"

"What's going on, how are they with the rampaging rats......" The disciples who didn't know the truth were very surprised and couldn't help but talk about it. In particular, cave pythons and berserk rats are natural enemies, and they actually saw rampaging rats crawling on the python, which is simply a miracle for the ages.

"Everyone be quiet!" Suddenly, Zhao Xiao's voice spread throughout the Black Castle, and all the disciples quieted down, subconsciously looking up at the highest place.

At this time, Zhang Yu was standing in the middle of all the inner disciples, because he was cultivating in the foundation building period, his strength was already able to become an inner disciple, and he and these inner disciples had also become the last mobile force of Black Castle.

When he heard Zhao Xiao's voice, he couldn't help but look up, only to see Zhao Xiao's impassioned morale, I have to say that Zhao Xiao's eloquence is excellent, and the morale of his disciples has been mobilized.

"Black Fort is a super fortress built by the sect, I believe that we will be able to defend it, any enemy will fail in front of the castle!" Zhao Xiao's words made Zhang Yu's heart feel a little weird, there is a good saying, castles are attacked from the inside.

Didn't you hear that Meng Tiandong was imprisoned in the castle? Where are the others now?

Just seeing Zeng An standing not far away, Zhang Yu hurriedly walked over and asked, "Where is Meng Tiandong?"

"Meng Tiandong, you said that traitor, he is in prison now, is there anything wrong?" Zeng An said with a smile.

"I have something I want to ask him......"

"Oh?" Zeng An looked at Zhang Yu, pondered for a moment and said, "In this way, I'll take you over to have a look." ”

"Thank you so much!" Zhang Yu said with a smile, and the two hurried towards the prison.

At this moment, the ghost mother stood on top of the monitor lizard, muttering something with her eyes closed.

At the same time, Meng Tiandong, who was in prison, seemed to hear something, and opened his eyes suddenly, his eyes were full of sockets, and he looked particularly weird.