Lin Zifeng could feel that the frequency of this sound was very high, and the source of the sound was very far away from his position, although he didn't understand why he could hear such a sound, but Lin Zifeng could be sure that this was indeed Anna's cry for help!

Lin Zifeng looked up at the distance in the southeast direction, and in the night, he couldn't see anything except the undulating green hills. He took out his mobile phone www.biquge.info checked the map of his location, and there were several roads that clearly showed the driving route in the southeast direction.

Lin Zifeng suppressed his excitement, stepped on the motorcycle, and was about to gallop away.

Ling Hujiao, who was on the side, was a little confused, this young man was obviously lost just now, why did he seem to have suddenly changed now, "Lin Zifeng, what are you going to do?"

Lin Zifeng had already started the motorcycle with one foot, and he turned the dragon head while saying, "I heard Anna's shout, she is in the southeast direction, I am going to save her!" After speaking, Lin Zifeng disappeared on the mountain road without looking back.

Ling Hujiao looked incomprehensible, and heard the girl's shout? Why didn't I hear any sound, could it be that the young man was already insane because of the blow being too big?

"Captain, can we go back now?" asked a police officer, in fact, they had already dealt with the kidnappers, but they didn't see Ling Hujiao wanting to leave for a long time.

Ling Hujiao looked at the direction in which Lin Zifeng disappeared, and was stunned for a while, the reason why she did not return to the police station immediately after solving the case was because she saw that Lin Zifeng's mental state was not normal. If you leave him here, nothing will necessarily happen. But now that Lin Zifeng is gone, Ling Hujiao has become more worried, she doesn't want to receive a third criminal case in one day.

"You go first, and I'll go with you. Linghu Jiao commanded.

So some of the police got into the kidnapper's van, leaving a police car for Ling Hujiao to use, and the three cars left the Wutong Mountain one after another in the night.

Lin Zifeng drove the motorcycle in the night, and he now had a feeling of being lost and regained, although he had not yet rescued Anna, he could already roughly determine where she was.

According to common sense, as long as a person can hear a sound, he can roughly determine the location of the sound source, whether it is hearing a person shouting behind his back, or the horn of an oncoming car, or the sound of music from a different store in a shopping mall, with the hearing of the ear, it is easy to determine the location of the object emitting these sounds.

But no one has ever tried to judge the direction of ten kilometers or even more from the sound alone, and the reason for this is not that the judgment of the human ear is not good, but that the sound can still be heard by the human ear after such a long distance transmission.

But now, Lin Zifeng found that he was experiencing a strange phenomenon, he knew that Anna's voice was very far away from him, but after such a long distance, he still heard Anna's voice, so he was able to judge Anna's location through this voice.

This is a completely unprecedented experience, judging from the reaction of Ling Hujiao and the other police officers, they can't hear the voice just now, only they can hear it. In other words, can your ears hear a wider range of frequencies than the average human?

Lin Zifeng's thoughts flipped in his head, no matter whether his speculation was correct or not, anyway, the most important thing now was that he could hear Anna's cry for help.

The engine continued to roar, and before he knew it, Lin Zifeng had already driven a distance of more than ten miles, and just when he felt a little uncertain about the direction, his ears heard Anna's cry for help again.

Lin Zifeng's spirit was lifted, judging from the voice he heard this time, Anna was within a kilometer of him!

Nana, hold on, Brother Feng will be here soon!Lin Zifeng secretly shouted in his heart.

The motorcycle accelerated again because Lin Zifeng slammed on the accelerator, and at the end of this street, there was an abandoned unfinished building. The surroundings were deserted and deserted, and on the top floor of this unfinished building, in an empty room with no windows, the lights turned on tonight.

"I said little beauty, why do you want to toast and not eat and drink, wouldn't it be good to sign a contract obediently?" In this empty room, a man's voice came out, and it was Ding Jiang who spoke.

A stool was placed opposite Ding Jiang, Anna was tied to the stool with her hands behind her back, her eyes glared at Ding Jiang angrily, her mouth opened and closed, but she didn't make any sound.

"Little beauty, what are you talking about, why can't I hear me," Ding Jianghu asked suspiciously.

Anna's mouth curled, and she looked fearless, "I'm calling my brother Feng to come and save me, you'd better let me go now, if you wait for my brother Feng to arrive, see if he doesn't skin you!"

Ding Jiang laughed after hearing this, "I said little beauty, this place is more than twenty kilometers away from the city, even if you shout at your throat, your brother Feng won't be able to hear it." ”

Anna turned to one side, not wanting to look at the person in front of her anymore, and said, "Not necessarily. ”

Ding Jiang didn't bother to reason with this little girl, and when he talked about her brother Feng, he became angry when he heard it. Originally, this afternoon, he and the four security guards politely went to Anna to sign a contract, but he didn't expect this little girl to sign the contract, and said that she must wait for Brother Feng to come back, and she will only sign if Brother Feng agrees.

The contract that Ding Jiang took was originally equivalent to a deed of sale, and of course he would not wait stupidly for the girl's family to come back, so he motioned to several security guards to make a move, trying to forcibly press the girl's finger print on the contract.

Who knew that before the security guard could make a move, the girl's face suddenly changed drastically, and she shouted loudly out of the door, "Uncle Liu, help..."

Of course, Ding Jiang can't let the girl shout at this time, if more people are attracted, this signing will definitely be in vain. At that time, the boss will not only have to take back his special funds, but may also let him fire the squid. Ding Jiang couldn't accept this result, just by hiring a private detective, he had already spent 200,000. So no matter what means are used, Ding Jiang must get the girl to sign the contract.

Before the girl could shout the word help, Ding Jiang immediately stepped forward to cover her mouth, and then dragged her downstairs into the van without doing anything and took her to this deserted place.

"I've seen your surveillance footage, this video hasn't been edited in any way, you stay underwater for six minutes, tell me, how did you do it?" Ding Jiang held a laptop in his hand and slowly walked in front of Anna, a video was playing on the computer screen, which was the surveillance video of Anna swimming.

Anna only glanced at it and didn't dare to look at it again, her heart was pounding, no wonder she felt so strongly about this danger, it turned out that she had a premonition that her identity was about to be discovered by humans?

This afternoon, the reason why Anna shouted for help in the rental house was that she suddenly discovered that the danger she had a premonition a few days ago was not because of the Dragon Prince, but from these people in front of her. It's a pity that Uncle Liu didn't arrive in time, and she was still kidnapped to this place.

"It's impossible for ordinary people to dive for six minutes, in addition to this, I have seen you tame the sea lion with your singing," Ding Jiang asked step by step, "Say, what kind of person are you!"

With this last sentence, Ding Jiang suddenly raised his voice, which frightened Anna's whole body and didn't dare to raise her head at all.

Ding Jiang did this, originally just to ask some of Anna's handles, so that she could agree to sign the contract on the deed of sale under his coercion and temptation, but he didn't expect Anna's reaction to cause an even more astonishing question in his heart.

Ding Jiang put down the notebook in his hand, bowed down in front of Anna, hooked her chin and raised her face, Ding Jiang's gaze looked directly into Anna's eyes.

It was a pair of beautiful pupils, and there were faint tears flickering around the pupils, and the color of the tears was as blue as the sea!

Ding Jiang was so shocked that his fingers loosened, took a few steps backwards, and exclaimed, "Aren't you human?!"