Chapter 848: Black Dragon Grotto

"Xuanlong Grotto!" Seeing these four words, Nie Tian's eyes flashed with a sharp light, and he immediately thought of the Xuanlong Demon Saint mentioned by the Iron Sword Demon King.

Xuanlong Grotto, could it be the place where the Xuanlong Demon Saint is?

The Iron Sword Demon King mentioned the Xuanlong Demon Saint more than once, and every time he mentioned it, his expression was full of reverence.

It is obvious that the status of the Xuanlong Demon Saint is much higher than that of the Iron Sword Demon King.

At this time, the others also looked at the Xuanlong Grotto, but their faces showed horror.

After the previous tombstone killing array, no one dared to act rashly, and they were all waiting for Nie Tian to speak.

Nie Tian flashed over and came to the grotto. Suddenly, a strange cold wind blew in his face, with a pungent bloody smell.

"Hmm?" Nie Tian frowned slightly, his eyes were like a sharp sword, looking towards the grotto, and immediately felt an ancient breath. The space in the grotto was very vast, and it was impossible to see the end at a glance.

The most bizarre thing is that the space of the cave is flickering with a faint blood-red light, like a strand of blood, which makes people feel a little cold.

Nie Tian did not dare to be careless, and his consciousness spread out inch by inch to determine whether there is a killing array or prohibition outside the cave.

After a long time, he took a deep breath and looked at Jin Dabao, who nodded and smiled, confirming that there was nothing dangerous.

"Let's go in." Nie Tian breathed a sigh of relief and warned: "After entering the cave, no matter what happens, you are not allowed to move without my order, understand?"

"Yes." Everyone nodded, and now Nie Tian represents the highest authority in their hearts.

As soon as he stepped into the cave, Nie Tian suddenly felt a bone-chilling cold, as if it could penetrate directly into people's bones, making people shiver.

This chill is very strange. Nie Tian and others are all Tianyan realm warriors, and their martial bodies are extremely strong. The general cold wind has no effect on them, but this cold wind makes him feel bone-chilling, which is very strange.

The others looked terrified and stuck close to Nie Tian.

Nie Tian and Jin Dabao walked in front, letting Xuanqiu and the three brothers of the Ren family follow behind, and Hantian carried Lin Feng and the three girls in the middle.

This time Xuanqiu was very obedient and followed Nie Tian's instructions.

"Boss, what is this cave used for? It doesn't need to be so big." Jin Dabao narrowed his eyes slightly, looking at the vast space around him, and couldn't help saying.

Nie Tian shook his head slightly, he didn't know what this cave was used for.

The cave is a hundred meters high and forty or fifty meters wide. Not to mention walking, even a sixth or seventh-level spirit beast can pass through.

After walking forward for about a few thousand meters, the cave did not become narrower at all, but became wider and wider. The light was projected from nowhere, and it was very bright in front of Nie Tian and others.

However, Nie Tian also felt that the blood-red light in the space was getting stronger and stronger, and he could almost see the blood threads swimming.

In the space, a withered breath of death was spreading, which made people tremble.

"Boss, boss!" At this time, Jin Dabao seemed to have discovered something, and his voice suddenly became trembling.

"What's wrong?" Jin Dabao's reaction made Nie Tian's heart suddenly sink. This fat man is a super optimistic person. At this moment, he suddenly became frightened. He must have made a shocking discovery.

"You, look at the stone wall, what is it?" Jin Dabao's teeth were trembling, and his face was no longer bloody.

Nie Tian's eyes tightened and he looked up at the stone wall above. At first glance, there was nothing special, but he carefully sensed and found that there was a layer of black light surging on the stone wall, with a slight black glow.

Nie Tian's divine sense probed over and immediately felt an evil breath. The terrible destructive breath made his heart tremble, and even the star stone in his body trembled.

"What a weird breath, what is this?" Nie Tian's eyes flickered, and he felt a terrible threat from the stone wall.

It seemed that the blood in the space was emitted by the black light on the stone wall. The black light was not dead, but alive!

Suddenly realizing this, Nie Tian's forehead was covered with cold sweat.

"What breath?" At this moment, Xuan Qiu, who was walking at the end, suddenly screamed in a very sharp voice, which was caused by excessive shock.

Nie Tian and others turned around and immediately felt a strong momentum pressing over.

"It's that thing!" Jin Dabao was the first to react, looking at the stone wall above his head and shouting.

Nie Tian immediately understood. In front of him, a blood-red light spread like a tide, drowning the world and swallowing everything. The strong momentum was enough to kill everything.

It was the black light on the stone wall. After leaving the stone wall, it turned into a blood-red light, rolling over.

"Run!" Nie Tian uttered a word, but his figure flashed, and he rushed towards the blood-red light.

Others ran wildly, but the speed of the blood-red light was very fast, and it became more and more dense and rich. A "buzzing" sound rang out in the cave, making people feel shuddering.

"I want to see what the hell this thing is?" Nie Tian was left alone. He shouted in a deep voice and thrust out a sword. Suddenly, a sword shield formed by sword intent appeared and rushed towards the blood-red light.

"Bang!" The sword shield hit the blood-red light. There was a muffled sound in the void, followed by a rustling sound. The sword shield formed by sword intent was swallowed by the blood-red light in the blink of an eye.

"Hmm?" Nie Tian's eyes trembled slightly, and there was a hint of confusion in his eyes. What on earth was this blood-red light that even swallowed up the sword intent.

"Okay! Then try the power of thunder again!" Nie Tian calmed down immediately, and endless thunder surged around him. The purple-gold lightning spread, and the terrifying power bloomed, tearing everything apart.

"Roar!" A punch was thrown, and a thunder dragon blasted out. The power of thunder was so vast that the entire cave shook slightly.

"Boom!" The thunder dragon rushed into the blood-red light, slightly slowing down the speed of the red light, but soon, it was swallowed up by the red light again.

"This..." This time, Nie Tian's eyes showed a hint of surprise. The power of the blood-red light exceeded his expectations, and it even swallowed up the thunder dragon.

His eyes trembled slightly, like two sharp blades, shooting into the blood-red light.

This time, he saw clearly what was in the red light. It was a very tiny flying ant, only the size of a grain of rice, but its body was as red as blood. There were so many of them that it was impossible to see the end. There were at least hundreds of millions of them.

It was these flying ants that devoured Nie Tian's sword intent and thunder power.

There were too many flying ants, and when they gathered together, they became a blood-red light.

Nie Tian immediately guessed that these flying ants were the black light on the stone wall.

When they were quiet, they were black, and once they became violent, they turned into red.