There was a click, and the wall receded a wall's thickness, then slid open like a sliding door.

Yi Yunfei checked it carefully, the passage leading to this did not have a formation mechanism, and behind the wall was a passage that was not too long, and it was pitch black inside, Yi Yunfei took out a night pearl and looked inside with the soft light.

It was a very small room. The space is not big, only two or three square sizes, the floor is paved with white jade, there is no special decoration, this room is not even furniture, the walls and top are bare. There was only a thick pale yellow futon, placed in the center of the house.

And what Yi Yunfei paid attention to was not the futon, but another thing on the ground in front of the futon.

It was a metal box, a square box, the length of the four sides was about 15 centimeters, there was no carving on it, it looked very ordinary. It's just that the corners and openings of this box are much smoother than other places, and at a glance you can see that someone often plays with it in your hand.

Although he was a little excited and nervous, Yi Yunfei still checked this passage very carefully, for fear that an inexplicable attack formation would suddenly appear just like just now. But fortunately, he made it to the box without any problems.

Bending down to pick up the box, it was very heavy, with a weight of about twenty catties, and his weight and volume were very asymmetrical. Yi Yunfei reached out and pinched the opening of the box, and opened the box easily.

What caught my eye was a metal ball, which looked very smooth and golden yellow, and seemed to be a very ordinary gold ball. But he knew that the Ji family had spent so much effort to hide this golden ball so deeply, this was definitely not an ordinary golden ball.

"Could this be what the Ji family got from Yi Yunzong in the first place?" Yi Yunfei guessed, reaching out and touching the golden ball.

What came from this golden ball was not the coldness of metal, but the warmth of the metal. It seemed to be the kind of small hand stove that Yi Yunfei could carry with him in his memory, exuding bursts of heat. Yi Yunfei simply put down the metal box and took the golden ball in his hand.

A warm feeling came from the golden ball, Yi Yunfei carefully inspected the golden ball, the golden ball was extremely smooth, there were no gaps, and he didn't know how this warmth appeared.

The warm breath was not static, he slowly spread along Yi Yunfei's arm, to his elbows, to his arms, to his shoulders, and then gradually permeated his entire body. Yi Yunfei didn't notice this, he just thought that it was the heat emitted by this golden ball like a hand stove that warmed his entire body.

The process was very short, so short that Yi Yunfei didn't have time to think about anything, and his whole body warmed up. Then he felt that the blood in his body seemed to be flowing at an accelerated pace, and this warm feeling continued all the way to his meridians, his bones, and every part of his body!

Although he didn't feel any discomfort, Yi Yunfei was still alert, and he squatted down, trying to put the golden ball back into the metal box.

At this moment, the golden ball seemed to have been triggered by some kind of mechanism, and bursts of metal sounded, and countless lines suddenly appeared on the golden ball that originally looked extremely smooth, and from those lines, a warm red light emanated.

Without waiting for Yi Yunfei to react, under his stunned expression, the golden ball was like a lotus flower, blooming in his hand, countless flowing golden lights flashed, and pieces of petals magically grew on the golden ball, spreading out to the surroundings, layer by layer, extremely beautiful.

Yi Yunfei's eyes were firmly fixed on the golden flower that bloomed in his hand, and when the golden flower began to bloom, the dazzling red light continued to shine through. Yi Yunfei felt that his heartbeat was constantly accelerating, and he was about to jump out of his throat.

He was nervous, he didn't know why such a strange change had happened, the golden flowers, the warm red light, all looked beautiful, there didn't seem to be any threat. But no matter who you are, when faced with such an unknown thing, there will be a kind of conditioned vigilance.

However, the speed at which this golden flower bloomed was too fast, and it only took two blinks of an eye for Yi Yunfei to stand up to squat, and the golden flower had completely bloomed in his hands.

When the flower blooms, there is a red crystal like a stamen in the center of the flower. It resembles a thumb-sized gemstone, crystal clear and showing a beautiful red color. It was like a drop of blood, like a drop of water, lying tightly in the center of the flower.

"Could it be that what the Ji family really got from Yi Yunzong was this red thing? This golden ball was used by them to store this item? But such an important thing, why did it automatically open when I held it in my hand?" Yi Yunfei said to himself with some confusion.

But his purpose has been achieved, and there is not much time to study this thing, he is going to go out first, and then see what this thing is!

He thought that this golden ball was the container used by the Ji family to store the red gem, so he didn't pay too much attention to it, and directly reached out to take the red gem. The red gem was very beautiful, as attractive as a ripe pomegranate seed.

Stretched out two fingers and gently pinched towards the red gem, as soon as he touched the red gem, Yi Yunfei's fingers came with a sharp pain, that kind of pain, the kind of pain that the flame burned. Yi Yunfei now knew that the heat emitted by this golden ball came from this red gem, but he didn't expect that this thing looked harmless, but it was so hot.

The hand retracted like lightning, instinctively checking the injury of his finger, but the moment he lowered his head, he seemed to see a bright red light on his finger flicker, and it disappeared in an instant. If it weren't for the fact that he was confident in his eyesight, he would have doubted that it was a hallucination.

Almost at the same time, he looked up at the red gem in the golden lotus, and the sight made his scalp tingle and he stood there.

The red gem was gone! All I held in my hand was the golden flower that bloomed like a lotus flower!

From entering this room, until now, it has only been less than three minutes, and strange changes have been made one after another, and soon, greater trouble has found Yi Yunfei again.

He felt some heat, not from the outside world, but from the depths of his body. He felt his exhaled breath start to heat up, and there seemed to be a fire burning in his body, but there was not a drop of sweat on him.

Quickly threw the golden lotus flower in his hand to the ground, Yi Yunfei sat cross-legged, and instantly sat and looked inward.

In less than a moment, he discovered the problem. He saw the red gem appear in his veins, the blood rushing in his body, it had no effect on it, it was moving forward, like a child entering a strange street, walking and stopping, as if it was surveying the surrounding environment.

This red gem seemed to be really a drop of blood, and he changed shape in Yi Yunfei's blood vessels, adapting to the size of the blood vessels, but it was clearly distinguishable from the blood in Yi Yunfei's body itself, and did not interfere with each other.

"What the hell is this? Is it a bug?" Yi Yunfei gasped, and his scalp tingled.

He found out too late, if it was just in the arm, he could have gritted his teeth, punctured the blood vessels of his own skin, and taken the thing out. But in the blink of an eye, the thing entered his abdomen and rushed towards his heart.

"I've just come back to life, I won't really die this time!" Yi Yunfei felt that as the red gem got closer and closer to his heart, his body was like a big furnace, emitting huge heat. His skin was hot, the sweat on his skin was dried in an instant, and the small room was filled with white moisture.

Getting closer and closer to the position of the heart, Yi Yunfei could only watch him go towards the position of the heart, among all the exercises he had practiced, none of the exercises he had practiced could control the blood, that thing followed the blood towards the heart, what could he do?