As a person who has experienced it on the ground, Ah Da expressed real fear.

"Well, the terrain of this building is relatively low-lying, although the slope is very small, but it is still lower, and the surrounding vegetation is also relatively luxuriant, and the first floor will indeed be cooler in summer, just like the principle of a wine cellar." Yu Nuan glanced at it casually, and explained the yin qi that made Ah Da's heart furry in the afternoon.

"Oh, that makes sense." Ah Da heard Yu Nuan's explanation and seemed to understand a little.

The moon came out of the clouds, and the moonlight sprinkled on the tall building, illuminating the top of the tall building, and everyone couldn't help but look up, but found that there were visible to the naked eye, wisps of gas overflowing from the building, and it also transformed into various forms.

"Yu, Yu, Yu Nuanxiao, Miss, you, you, have you seen it? That's, isn't that a ghost? Ah Da had a knotted tongue a little, and unconsciously moved closer to the rest of his life.

The rest of his life is male, young, and yang!

"It's just that the weather is too hot, the temperature drops down too quickly at night, some water vapor evaporates alternately from hot and cold, and the refraction of the moonlight passes through the clouds, making the light unevenly distributed, and there are no street lights around, which produces the ghostly atmosphere you said." Yu Nuan is a very professional analysis.

Sure enough, in the eyes of Xueba, all supernatural phenomena that ordinary people can't explain will become rational and evidence-based scientific principles.

Ah Da looked at Yu Nuan with admiration, and simply regarded Yu Nuan as an idol.

Those who say that reading is useless are really useless, obviously they can't learn it themselves, and they still want to advocate some unhealthy tendencies.

After Yu Nuan said this, Ah Da suddenly felt less scared, and his trembling legs stopped.

The four of them took out the flashlights they had prepared, tested the brightness, and prepared to enter the building.

At this time, the night wind blew, and a woman-like laughter sounded in everyone's ears.

Ah Da's outstretched leg unconsciously retracted, and he turned his head to look at Yu Wen.

"Big, Miss, were you laughing just now? Don't be a prank! Ah Da looked at the last Yu Wen and said.

"Do I think someone would do such a lowly and interesting thing?" Yu Wen was a little helpless.

The other three nodded in unison.

"Uh, then I'll also be good at different occasions, I heard that voice just now, didn't we hear it in the afternoon?" Yu Wen remembered that when she and Ah Da came over in the afternoon, she also heard the woman's laughter.

"Really? Such an evil sect? Looks like she's still a female ghost! Yu Sheng also came over and asked, but compared with the previous disdain, he was a little more interested.

"Alas, this is nothing more than rumors!" Yu Nuan was speechless to the chattering guys in front of him, and they all said that everything is science!

"How can the wind be so loud? It's like a woman laughing. "As a person who has no culture and still believes in gods and ghosts, Ah Da naturally wants to question it.

"So, learning is very important, it's just a very simple natural principle, there is wind blowing from one side of the building to the other, if the windows in the building are symmetrical, then convection will be formed," Yu Nuan gestured with his hand.

"In this way, the building will definitely not be empty, as long as the windows are open, there are some obstacles in the middle, if the wind is a little stronger, it will make a sound when it rubs against the object, which is the laughter you just heard!"