Qiao Tianchang got up and went out toward the cave. But when he got to the cave, the voice was gone again. He closed his eyes and felt carefully. He still didn't notice anything wrong.

His brow was slightly wrinkled. When he just walked back to the cave, the very penetrating scream rang again. Qiao Tianchang's eyes flashed a bit of doubt. Then he went out again. The sound disappeared again. After returning to the cave, lei'an and his family were a little confused. Did they go crazy? Otherwise, how can we do such a thing?

"What are you doing, boss?"

"The screams came from the cave." Said Jo in a cold voice.

However, this situation is really a little strange, but several times of confirmation made him have to believe that it is true.

"What? Boss, you Are you not kidding us? " Ryan stammered.

Joe took a cool look at Ryan and said, "I don't have the time to joke with you. You can't believe to go out and have a try."

Ryan went out with a skeptical attitude, but as soon as he came out of the cave, the sound disappeared, and he couldn't hear it at all. He turned back to the cave, but when he got back to the cave, the sound rang again.

Just now, lei'an, who didn't believe it, looked at Qiao Tianchang in amazement: "what's the matter with boss?"

"I don't know, but I don't think these sounds come from nearby." Qiao Tianchang shakes his head. He is not very clear about the current situation, but he knows a little. Although they are very close to each other, they are also very far away. This is probably the echo Yao Er once said.

The sound may have come from another place, but it's probably on this mountain.

"No? How can we not be nearby when the sound is so obvious? " Ryan frowned and looked at Joe Tianchang unexpectedly.

Qiao Mo Feng nodded and said: "it's not necessarily in this place. My mother took us to play now. We are surrounded by mountains. After shouting, the voice can come back from afar. My mother said that it's called echo, but it's behind the original voice, but now it's different. It means that the other side must be in a big place, but it's not enough to let the voice pass Go out and come back. "

He can only remember a general idea, and he is not very clear about the details. At that time, they were not very big, and they thought it was very fun.

"Feng'er is right. It was on the west coast, so he took them to play in the mountains. According to Yao Yao, the voice is likely to come from the bottom of the mountain, but it's not clear what happened." Joe Tianchang shook his head. He had a feeling that the cave might be a surprise cave.

Ryan was a bit confused. After listening for a long time, he didn't understand what was going on.

After shaking off his dizzy head, Ryan decided not to use his own brain for such a complicated thing. Let the eldest brother solve it.

"I'm dizzy now, boss. You'd better think about such a thing." Ryan shook his head and said.

Qiao Tianchang gave Ryan a bad look: "when can you have a long heart?"

"Boss, I've always had a heart." Ryan's serious answer.

"Is it? But why didn't I see it? " Qiao Tianchang looks at lei'an in disgust, which makes lei'an feel like crying without tears. Who is he calling to provoke? His boss doesn't treat him anymore.

Joe Tianchang didn't plan to pay attention to Ryan, but looked at the people who had all opened their eyes, frowned and said, "let's have a rest. If there's anything to do, we'll check the terrain tomorrow."

All the people on the scene have high internal power. They want to shield the noise or do it. So they stand in a corner and close their eyes to rest. Qiao Tianchang is thinking about where the sound heard in the cave comes from.

Thinking about it, Joe Tianchang also closed his eyes. The next day, just after the light, everyone opened their eyes. At that time, the scream was gone. It was weird.