Hearing this, the old man raised his head and looked at Yeyun, to Yeyun's surprise, this seemingly skinny old man, his eyes were not cloudy at all, on the contrary, his clear eyes were full of wisdom.

"Who are you?"

The old man asked, just like the voice just now, the old man's voice was a little weak and hoarse, although so, but from his demeanor and tone, it was not difficult to see a toughness.

"Night Clouds"

Yeyun replied very simply, and then stood aside very honestly, without asking, without explaining, the little Zige on the side saw Yeyun like this, he was afraid that the teacher would be angry, and hurriedly wanted to introduce, who knew that the old man waved his hand, stopped Xiao Zige, glanced at Yeyun, the clear eyes suddenly became sharp, like a sharp sword, fixed on Yeyun's body, Yeyun's face did not change, and he did not look directly at the old man's eyes, because it was a provocative behavior, Yeyun looked at the nose, nose and mouth, mouth and heart, Stood quietly aside, without any movement.

"Your strength is good, you can cut open my magic door with a sword。。。。。。"

The old man said lightly, but he didn't see any fluctuations on Yeyun's face, he didn't speak, even if he admitted it, it could not be counted.

"You're a Demon Martial Dual Cultivator?"

The old man suddenly became interested, and an incomparably gentle spiritual force slowly surrounded him, the spiritual power was very slow and soft, without any danger, Yeyun knew that this was just a one-sided detection, so he had no intention of resisting, let him probe at will, and replied lightly: "No, I'm not a magician"

No arrogance, no impatience!

This was the old man's first impression of Yeyun, and then, he was surprised to find that this young man's mental power was beyond his imagination, even if it was an ordinary great magician, there was no way to compare with the young man in front of him, but the strange thing was that he was not a magician, but a swordsman.

Since he is not a magician, what is he doing with his mental strength? The old man didn't naively think that this strong spiritual power was born with a teenager, but they were this kind of people, which one was not a genius, and the old man was just surprised by the situation of the young man in front of him, but he didn't feel anything else.

With a faint smile, the old man's withered face smiled like a blooming chrysanthemum, touched Xiao Zige's head, and asked lightly: "Tell me, what's going on?" ”

"Well, that's, that's like this, that'。。。。。"

Although it was still fragmented, but I don't know how much better than when I was outside, Xiao Zige told the matter of Yeyun and the half-beast as it was, and finally, took out the magic core that Yeyun gave him.

"Hundred-year-old red salamander?"

The old man was only a little surprised after seeing the magic core, just surprised, obviously he didn't value the magic core of Yeyun very much, or rather, the old man had seen too many treasures, and this small hundred-year-old red fire lizard demon core was not enough to shock the old man.

Although he didn't know how valuable the hundred-year-old Red Fire Lizard Demon Core was, at least Yeyun dared to guarantee that if he sent this magic core to the angry face, the old man would jump up with excitement 100%! And in front of him, when the old man saw this magic core, he was only a little surprised.

"Yes, what is the effect of the exchange item?"

Yeyun didn't say anything, and went straight to the topic, the old man glanced up at Yeyun lightly, and said in the tone of an elder: "What are young people anxious about!" Wait until I'll do another experiment! ”

At the old man's age, he didn't suffer a loss to say that he was in this kind of tone, but it was only when the old man said about the experiment that Yeyun remembered that little Ziggy had said that his teacher never slept in order to do experiments.

Glancing around the room, Yeyun found that this room was not used to live or place objects or anything like that, but was similar to the results of his experiments, which could be seen from the faint smell of burning and the mess of unknown debris everywhere.

Holding the magic core of the night cloud in his hand, the old man seemed to want to lift a machine similar to an energy cannon next to him, but this thing was many times smaller than the real energy cannon.

It was about one meter long and half a meter wide, and seeing that the old man seemed to want to lift it, Yeyun took the first step, grabbed the machine and asked, "Where are you going?" ”

"Huh...

didn't stop Yeyun, the old man smiled faintly, pointed to the front of him boringly, and said, "Just put it over there。。。。。。 ”

This little cannon is even lighter than you imagined!

I don't know what material it is made of, this small cannon looks complicated, but it is actually very exquisite, and the weight is average, but it is only twenty catties.

It's just that how powerful can this kind of thing be?

Energy cannons have existed in the Magic Continent since ancient times, if you really want to calculate, it probably comes down to the ancient magic that Nuluo said, his cost is high, and the energy used for each shot is amazingly high, but as a price, the power shown by the energy cannon is also amazing, and it is recorded in the ancient books that the energy cannon is not easy to make, and the difficulty of his production has discouraged countless people, and there are only three or four of them that have been created in total over the centuries.

The old man placed the magic core of Yeyun into the energy gate of the small energy cannon, and then slowly pressed the switch button.

A thick fire-based magic element gathered quickly! Countless faint rays of fiery red light visible to the naked eye began to condense in the muzzle of the small cannon, and the color of the hundred-year-old red fire lizard demon core in the energy gate began to slowly fade, and it was obvious that the magic elements inside were being quickly converted into attacking energy by the small cannon.

"Boom!"

A blinding beam of light shot out and hit the opposite wall with a loud bang, as if even the room was shaken!

There was a burst of smoke all around, and the debris and fragments were flying everywhere, and the night clouds silently blocked in front of the old man and the little Zige, blocking all the debris out.

Maybe this action was deliberate, or maybe it was subconscious of Yeyun, but when the old man saw Yeyun's action, there was a hint of appreciation in his eyes, but it quickly disappeared.

At this moment, Ye Yun's heart was shocked or shocked, a demon core could unleash such a violent attack, in Ye Yun's opinion, the power of this kind of attack was enough to withstand the most powerful blow of the Great Sword Master!

But the most surprising thing is still to come, the wall! After being hit by a small energy cannon, it was still intact, except for a few blackened stains, there was not a trace of crack at all!

Who built this castle exactly? Even an ordinary wall has such a terrifying defense!

Ignoring Yeyun's slightly surprised expression, the old man casually threw the small cannon aside, and said to Yeyun: "Do you think this little toy that I spent a few days making is okay?" ”

"Play... Tool?..... ”

Yeyun lined up the corners of his mouth, and a trace of black line crossed his forehead