Now Yuan Bin has gradually understood the routines and ways of doing things of Xi, the "guide". Pen? Interesting? Pavilion wWw. ｂiquge。 ｉｎfo

When he can help, needless to say, he will take the initiative, and when he can't interfere, he won't do anything to kill his brother-in-law.

"It's the sound and not the phenomenon that the eye sees", is the hint Hee gives. Yuan Bin calmed down and carefully reminisced and groped for the meaning.

"Sound" is key, what does that mean? How does "sound" relate to "door"?

I recalled this sentence repeatedly, but I still didn't have a clue.

"You close your eyes and try it, turning off your vision can make your hearing a little sharper" Yuan Wei had been sitting on the side without speaking, and then reminded him loudly.

Well? Close your eyes and listen? Although Yuan Bin didn't understand it very well, he still did it.

The room was very quiet at this time, no one spoke, did not make any movements, and there was silence around them when they closed their eyes.

I pricked up my ears and didn't miss any details, but I still didn't hear any movement, as if I had entered a world of death.

Could it be said? Yuan Bin had an idea, Echo House... Echo, or is it a matter of sound, but the key point is probably not the voice you shout, but the echo that comes back?

"Door!!" He shouted out the key words again, but this time because he closed his eyes and calmed down, his hearing was indeed a little clearer.

Just after he fell, the echo of uh-huh~ faintly reached his ears, and this time Yuan Bin's heart suddenly found a trace of strangeness!

It's only for a moment, but ... The echo seemed to drift in one direction. Yuan Bin's attention also moved in the direction where the echo disappeared.

However, because the echo was very short-lived, I did not grasp the final direction at all.

But the good thing is that you can keep experimenting, "Door! "Mmmm~"Door"Mmmmmm~"Doordoor"Mmmm~ shouted a few times, and as the frequency increased, the amplitude of the echo was also connected.

Feeling the direction of the echo intently, as soon as it was about to disappear, immediately shouted "door" again, in order to keep the echo going.

Gradually, after shouting more than a dozen times, the echo kept buzzing in his ears, and finally caught the direction of the echo... Right!

The others didn't dare to make any noise, for fear of affecting him. Yuan Bin's face with closed eyes changed from frowning to rising, Xi knew that he had touched the clue, and nodded slightly with satisfaction.

"Door, mmmmmm~! Door mmmmmm~~" The footsteps slowly moved to the right, and the mouth still kept shouting, creating an uninterrupted echo.

Yuan Bin gently moved about a dozen steps to the right, and finally found something strange.

There was a place on the east wall on the right side of the echo room, and there was nothing on that wall, but Yuan Bin felt that those echoes were as if they were being dragged, and they drifted towards that place, like a moth to a fire, and disappeared little by little near the wall, and this feeling became clearer and clearer with many attempts and attention.

Finally, I shouted a few more voices, determined the specific direction, and adjusted the position.

"Door, mmmmmmmmmm~ door! Mmmmmmmm~~" Yuan Bin didn't think about anything, tried to empty his mind as much as possible, suddenly! In the image that had been pitch black in my mind, a golden keyhole appeared. It's like focusing, it's blurry at first, and then it's getting clearer.

"This is it!" Yuan Bin closed his eyes tightly, his expression was instantly solemn, and he suddenly raised his hand and stabbed the golden key at the wall in front of him.

With his sudden movement, everyone looked at the wall.

The sound of ~~~~~ metal clashing sounded crisply. The moment the key touched the wall, the originally empty, calm and ordinary black wall was poked out of a small keyhole by the golden key without warning, and a trace of golden light leaked through the key's body towards the keyhole.

Yuan Bin opened his eyes, looked at the changes in front of him, was ecstatic in his heart, and quickly twisted the key.

There was a sudden burst of golden light on that wall, projecting the outline of a rectangular door, illuminating most of the Echo House.

The golden light was so dazzling that everyone raised their hands to block their eyes. The golden key silently turned into a point of light as the door opened, blending into the bright light.

"Let's go inside," Hee walked to the front and waved for everyone to enter.

Yuan Bin was also so excited that he turned around and shouted, "Come on, come on!" Follow my brother, I won't make a mistake" is obviously because he solved the puzzle, and he was proud and excited.

Yuan Wei and Zhao Ruiying, who had recovered her spirits, got acquainted with each other, and walked to the light, followed closely with her hand and the car.

After Xi and Yuan Bin and others entered the light, they jumped into it. After the last figure disappeared into the golden light, the light instantly converged, and the surroundings became dim and silent again...

The moment they stepped into the light, everyone's bodies suddenly lost weightless, and even the carriage with the ability to float sank down, temporarily losing the ability to float.

With a few screams of terror, everyone fell down like a stone.

。。。。。。

"Ouch~" slowly opened his eyes and rubbed his body, the sudden landing just now caught everyone off guard.

This is a white world, surrounded by chaos, there is nothing up and down, left and right, front and back, not even floors, ceilings and walls, there is no end in sight, a pure white space.

Except for Hee, who stood there calmly, everyone else fell to the ground, twisting their limbs and slowly getting up from the ground.

Yuan Wei settled down, panting in his mouth, and looked at Yuan Bin with resentful eyes, "What did you just say?" Wouldn't it be good to follow you? As he spoke, he plucked his ear with his little thumb.

Zhao Ruiying also glared at Yuan Bin with white eyes.

Yuan Bin said with an aggrieved face, "This is not bad for me, how do I know that this is the case inside?" The golden light pierced his eyes, and he couldn't see anything in front of him, right? ”

Hee coughed lightly twice, and after hearing his prompt, everyone took out the black cardboard.

"Follow the invisible staircase up to the entrance at the top"

Everyone looked up and looked overhead, and there was a small black dot in the high place that they didn't notice carefully, because there was no reference, so they couldn't calculate the specific distance and height, but looking at the star-like black dot, it shouldn't be close.

"Where's the invisible staircase?" Yuan Bin didn't think about it, and subconsciously opened his mouth to ask.

Zhao Ruiying's voice had become a little hoarse, and she complained weakly, "It's said that it's invisible... That's invisible, of course."

"If you can't see it, you should still have traces to follow, right? Is it like just now, relying on sound to find it? Yuan Wei said.

Hee shook his head, "It's different, this is not an echo house anymore, it's not even a room, you can try it?" ”

Yuan Bin yelled like just now, "Stairs!" ”。。。。。。 Really! Although the volume is loud, there is no echo, this white space is boundless, there are no walls and floors, and even the "endless darkness" on the first floor, there are no physical objects, there is no medium that can make the sound bounce, and naturally there will be no echo.

Although there is no floor, there is still some invisible force under your feet, making it look as if everyone is floating in mid-air.

So the question is, how do you find an "invisible staircase" that can move upwards? By touching around? What's the point? I don't know if this staircase is a complete one, or a piece of independently floating plate-like objects, it doesn't matter how many steps there are at the beginning, but if you climb to a high place, one is not very empty, then how can you get it?

Although there is no ground, the current position should be the bottom layer, and it is not a soft support, and it is quite hard when I knock it under my feet with my hand. There are no other physical objects around, but the center of gravity of the body is still there, and if you fall from a high place on this invisible platform, you will still be injured or even fall to your death, right? When I entered the door just now, I fell.,Although I was caught off guard.,But I can obviously feel that the height is not high.,That's why it's fine.,But if you fall from the position of that black spot.。。。 I'm afraid that this white space will explode like throwing a tomato on the canvas, and it will explode into a blood-red color, right?