Fang Yu's heart beat violently, staring at the mysterious bronze door, and at the same time, he felt that there seemed to be a pair of eyes hidden behind the bronze door, secretly peeking at him.

"Bang!" A soft sound came from behind the bronze door, and it seemed that something had slammed into the door.

"Bang, bang!"

"Bang, bang, bang!"

The voice went from light to heavy, from slow to eager, the thing behind the door seemed to be a little impatient, and Fang Yu's heart was also nervously hanging in his throat.

The tide of spiritual pressure came from the bronze gate, Fang Yu only felt that he was in the ocean, rising and falling with the waves, but he didn't feel any discomfort, but instead had an inexplicable sense of belonging.

The bronze door trembled, and was finally knocked open by a small gap, and a white light instantly drilled out of it, and in the blink of an eye, it had already hovered in front of Fang Yu.

It was a bead the size of a pigeon's egg, with a smooth surface, flowing with colorful brilliance and a hint of mist, floating on Fang Yu's palm.

And when the bead ran out, the bronze door seemed to have completed its mission, and slowly disappeared into the air, as if it had never appeared in this world.

Looking at the bead in his hand, Fang Yu felt that his heart was beating hard, although he didn't know what this bead was, he could vaguely feel the strange surging spiritual power emanating from it, which was difficult to express in words.

And at this moment, the door of the secret room was suddenly knocked open, and Vice Principal Yao stumbled in, and shouted as soon as he saw him: "Bronze door, have you seen a copper door?" ”

Fang Yu nodded subconsciously: "I saw it." ”

"Where? Where is it? ”

"Uh...... Gone. ”

"Huh? Gone? Vice Principal Yao's eyes widened: "How did it disappear?" It's impossible, it's not scientific......"

"What else do you say about science at the Paranormal School?" Fang Yu secretly complained in his heart, but seeing Vice Principal Yao's crazy look, he still wisely didn't complain.

"That...... Vice Principal Yao, the bronze door is gone, but this thing came out of it. ”

Fang Yu showed the beads in his hand to Vice Principal Yao, who hurriedly took it, put it in front of his eyes and looked at it carefully, and after a long while, he let out a long breath, looking at Fang Yu's eyes strangely.

"Vice Principal, why are you looking at me like that?" Fang Yu felt a little hairy in his heart.

Vice Principal Yao didn't answer him directly, but just shook his head: "Your good luck, even I, the vice principal, will be jealous." ”

"The bronze door you just saw is thousands of years old." Vice Principal Yao's voice was filled with infinite sighs: "When the demon clan invaded, the entire cultivation world was in danger, and the ancestor of the Shushan Sect sealed it in an invisible secret room bronze door in order to prevent some treasures from being destroyed in vain. ”

"Back then, this ancestor died on the battlefield, and he didn't leave any way to open the bronze door of the secret room, but the bronze door of the secret room was filled with top heavenly and earthly treasures, and sometimes he would take the initiative to choose monks."

"In the thousands of years that followed, this bronze door of the secret room appeared a total of three times, and each time it appeared, it would spit out a treasure, creating three outstanding young people in the history of the Shushan faction."

"It has been 1,300 years since the last bronze door of the secret room was opened, and you are the fourth person to open the bronze door of the secret room."

"Boy, you're going to have good luck!"

Fang Yu was a little flattered by Vice Principal Yao's words, but he didn't expect that the vicissitudes of life and simplicity of the bronze door would have such a big background.

Vice President Yao then asked, "Do you know what this bead is in your hand?" ”

Fang Yu shook his head: "I don't know." ”

"There is a very rare dragon in this world, called Mirage!"

"The mirage inhabits the coast or the estuaries of large rivers, and resembles a jiao, with horns that fork like deer-like on its head, a red mane from its neck to its back, and dark gray scales that grow backwards from its waist down."

"Unlike ordinary dragons, the mirage has an incredible ability to create illusions, and the mist that comes out of its mouth can turn into all kinds of illusions, and the degree of realism may not be detectable even if the monk is deeply immersed in it."

"There is an idiom called mirage, which is scientifically explained to be the refraction of light, but in fact, it has a lot to do with mirage."

"And this bead in your hand is the dragon ball of the mirage, called the mirage, which has an incredible ability to create illusions."

Fang Yu was stunned for a moment, only to feel that the bead in his hand had become hot, and pictures that had never appeared before suddenly appeared in his mind.

He saw the vast sea, a little white sail, dolphins jumping out of the water from time to time, and seagulls soaring freely.

In the next second, the scene suddenly shifted to the endless desert at dusk, with a dozen camels leaving a row of footprints on the sand.

In the next second, his eyes suddenly jumped to the top of the mountain, and in front of him was full of greenery, and a waterfall hung upside down on the cliff not far away like a nine-day galaxy.

This was repeated several times, and Gao's defenses were a little confused, and then the illusion in front of him suddenly disappeared, and everything returned to the way it was.

Fang Yu knew that he had found a treasure.

He is now on the threshold of opening the fourth house, and he is missing a natural treasure to integrate into it, and he was worried that there was no suitable one, but now he doesn't have to worry.

The level of "mirage" is more than enough for itself.

"Vice Principal Yao, is this mirage my own?" Fang Yu asked with a shy face.

"Since it chose you, of course it's yours." Vice Principal Yao gave him a blank look: "Go out and register, you kid, you have picked up a big bargain again." ”

……

Bidding farewell to Vice Principal Yao, Fang Yu began to practice hard the night he went back.

This thing pays attention to accumulation, Fang Yu has never relaxed his requirements for himself, coupled with repeated adventures, so the aura in his body has grown rapidly, and he has reached the edge of opening the fourth house.

Among the nine palaces of the "Spirit Divine Formula", the fourth palace is the Fengchi Palace, and now in the Fengchi acupoint of Fang Yu's brain, many silver-like spiritual energy has been condensed.

This thing is called the spirit silk, it is the product of the high concentration of spiritual energy, when the density of the spiritual silk reaches a certain level, it needs to be fused together to form a spiritual cyclone, one broke through the Fengchi Palace, and linked it with the Fengfu, Shenting, and Baihui Three Palaces.

This process is both simple and complex, and if you want to integrate the "mirage" into it while opening it, it will have a certain risk.

Therefore, Fang Yu hesitated for a moment, but still decided to go to the "Demon Sealing List" to find Lu Tian's senior, first, to bring him the "Blood River Nautilus", and the other was to ask him to help.