After completing the transformation, the Little Blue Dragon began to slowly retreat. Yang Tian, Soli, Qu Yan, and Guying also slowly retreated.
The three people and one dragon retreated about fifty meters and stopped when they were about to return to the entrance of the cave.
The Little Blue Dragon shook its head at this time, and its dragon horns suddenly lit up with a golden light. A strong wave of energy came from the Little Blue Dragon.
Yang Tian felt a strange energy from the Little Blue Dragon.
This strange energy was rune energy. Yang Tian could not help but sigh in his heart. Xiao Long's use of energy had reached a new level.
Before coming out of the shell, he had only obtained some energy seeds, but now he could use them directly!
"Roar ~"
The Little Blue Dragon, who was ready, suddenly opened its mouth and roared. Then its body moved and turned into a green shadow, rushing toward the stone door.
"Boom ~"
Immediately, there was a loud noise.
The violent impact caused the entire cave to tremble. In the hard passage, a large amount of gravel fell down like rain, hitting the ground with a bang.
At the same time, there was a burst of red smoke in the passage, blocking Yang Tian and the others' view of the Little Blue Dragon.
Qu Yan Shi waved her staff and stirred the air with her spiritual power, and soon the red smoke was blown away.
At this time, they could see that the stone door engraved with runes had been hit by the Little Blue Dragon, and the hole was full of cracks.
This stone door was almost one meter thick, and the Little Blue Dragon had directly pierced a big hole in the stone door. It could be seen how powerful this impact was.
The Little Blue Dragon stopped in front of the stone door that had a big hole in it and looked at Yang Tian and the others with some pride.
The three of them quickly walked forward.
Yang Tian came to the Little Blue Dragon's side and checked the Little Blue Dragon's two dragon horns as he asked, "Xiao Long, are you okay?"
"Roar ~"
The Little Blue Dragon let out a low roar, telling Yang Tian that it hadn't even used its full strength!
There were no scars on the Little Blue Dragon's head, and the pair of dragon horns showed no signs of loosening. Yang Tian was relieved.
In this passage, there was more than one stone door. After Yang Tian and the others moved forward for dozens of meters, another stone door blocked their way.
Although Yang Tian didn't understand runes, he had a good memory. When he looked at the runes on the stone door, he found that the runes on the second stone door were slightly different from the runes on the previous stone door.
Sensing Yang Tian's confusion, the strange program said in Yang Tian's mind, "The runes are ever-changing. This is due to the change in location. The runes also need to change."
In a short distance of dozens of meters, the runes inscribed had to change. The cultivator who inscribed these runes had to have a very strong memory …
Just as Yang Tian was thinking about this, the strange program said, "Cultivating runes is the same as understanding the laws of energy. As long as you know how to use runes, you can naturally inscribe reasonable runes according to time, space, and the changes in energy around you."
Yang Tian felt much more relaxed after the strange program's explanation. If he had to memorize all the runes by rote, there would be no way he could learn anything.
While the strange program was explaining to Yang Tian, Yang Tian, Soli, Qu Yan, and Gu Ying retreated more than twenty meters.
After a short while, another loud bang was heard.
The Little Blue Dragon smashed a big hole in another stone door.
"Boom … Boom … Boom …"
Next, every few minutes, there would be a loud crash in the passage.
In about two hours, the Little Blue Dragon had smashed open a total of thirty-six stone doors. The underground space finally appeared in front of Yang Tian and the others.
"Ah ~"
Before Yang Tian and the rest could get a clear look at the situation of the underground space, a cultivator nearby saw the exit opening and shouted in a frenzy before charging towards Yang Tian and the rest.
Of course, this person didn't want to attack Yang Tian and the others. He was just about to go crazy because of the rhinoceros.
After several hours of killing, there were only sixty or seventy people left out of the eight hundred people who came in.
The surviving cultivators were all on the verge of collapse.
The cultivator who screamed passed by Yang Tian and the others and rushed out of the passage.
Following that, a few more people quickly left, not even bothering to say goodbye to Yang Tian and the rest.
They probably only noticed that the passage was open and didn't even know who Yang Tian and the others were!
Yang Tian and the others didn't pay attention to the cultivators who left. Their eyes were all attracted by a giant rhinoceros-like beast in the underground space.
The Little Blue Dragon had caused quite a commotion when it smashed into the stone door. When Yang Tian and the others appeared in the underground space, the giant beast had already stopped attacking the other cultivators. It turned around and looked at Yang Tian and the others.
"Roar ~"
The Little Blue Dragon let out a low roar. Under the surprised gazes of the cultivators, it slowly crawled toward the rhinoceros.
At this time, the Little Blue Dragon's body wasn't even as big as the rhinoceros. When it walked, it shook its head and its body quickly doubled in size as if it was filled with air.
This time, the Little Blue Dragon's body was finally about the same size as the rhinoceros.
The Little Blue Dragon's eyes were filled with battle intent. Actually, it could become even bigger, but it seemed like it wanted to have a "fair" fight with the rhinoceros.
Under the Little Blue Dragon's gaze, the majestic rhinoceros actually slowly took a few steps back.
It was forced to do so by the Little Blue Dragon's aura.
The Little Blue Dragon was a super-class mutated beast, while the rhinoceros was only a Star-domain Lord-class mutated beast. It was much weaker than the Little Blue Dragon in terms of rank.
However, this bad-tempered guy stopped after taking a few steps back. It was panting heavily and two streams of white air came out of its nostrils.
Then, the rhinoceros lowered its head and pointed the horn on its forehead at the Little Blue Dragon. At the same time, it used one of its front hooves to dig the ground. It looked like it could charge at the Little Blue Dragon at any time.
The two powerful mutated beasts were less than a hundred meters away from each other. If the rhinoceros charged over, it wouldn't even take a second with its strange charging speed.
However, neither the Little Blue Dragon nor the rhinoceros attacked first. Their auras were getting sharper and sharper.
This was like a duel between masters. There was always a process of accumulating power.
"Roar ~"
All of a sudden, the Rhino Beast let out a heavy howl.
This was a declaration of war against the Little Blue Dragon. Before it finished speaking, it charged towards the Little Blue Dragon.
Even though it was a hundred meters away, the rhinoceros's huge body seemed extremely light.
At this moment, the Little Blue Dragon also moved. Its two horns emitted a strong golden light. Its body moved and charged towards the rhinoceros.