After Huang Donglai got off the car with Ruohan, the macaque also got off fifty meters away from them.

Double tracking, even Huang Donglai did not find his traces, which shows that his tracking skills are first-class.

"Seven people, went to the second floor, the third room." Huang Donglai whispered to Ruohan.

"How do you know?" Ruohan was puzzled, she just saw a group of people get out of the car and enter this deserted apartment complex, but she didn't see where they went.

"I just know." Huang Donglai said with a smile, unwilling to reveal his ability.

Ruohan felt very suspicious, if Huang Donglai's judgment was true, then he must have some kind of ability.

Vision? Impossible, the place where he and others got off was blocked by the complex, and it was impossible to see where they went.

Hearing? It's possible.

Ruohan nodded, secretly assuming that Huang Donglai's hearing was very perverted.

It is also possible for some people to have a sensory system in their body that is very sensitive.

It is said that dogs have sensitive noses and strong hearings, but some people are also able to do this, some of these people are born, and some are disturbed by some external factors in the process of growing up.

For example, blind people, because their eyes can't see, so their hearing is several times more sensitive than ordinary people, or even more than ten times.

If a normal person concentrates on condensing his hearing, he may be able to reach this point of almost perversion!

Ruohan felt that there were too many mysteries on Huang Donglai's body, and he was like a labyrinth, waiting for himself to explore and discover.

For Huang Donglai, Ruohan was unconsciously full of interest in him.

The macaque followed behind Huang Donglai, Ruohan and the others, and quietly approached about thirty meters from fifty meters away.

"What's next?" Ruohan asked.

Huang Donglai raised his hand to stop Ruohan from speaking, but instead concentrated his attention on listening.

"We're being followed." Huang Donglai whispered.

"What?" Ruohan felt a little incredulous, and turned to look back.

"Don't exaggerate too much, it will only alert the other person, I'm not sure where he is now, this man's footwork is very good, it seems to be walking on tiptoe." Huang Donglai's words were amazing.

When people walk, the reason why they make footsteps is because the soles of their shoes touch and rub against the ground to produce sounds, and if the contact surface is reduced, such as standing on tiptoe and walking, in order to reduce the contact surface, the footsteps can indeed be minimized.

After listening to Huang Donglai's words, Ruohan was slightly surprised: Sure enough, his hearing was unusually developed!

"How small can you hear?" Ruohan couldn't help but ask.

Huang Donglai grinned, and then realized that he had leaked his mouth, but since it was discovered, there was no need to hide it anymore.

"Within twenty meters, the sound of a fine needle hitting the ground can be recognized." Huang Donglai lied halfway, but his hearing could hear the sound of a needle falling within fifty meters.

Ruohan nodded secretly, a normal person, in the dead of night, can probably only hear the sound of fine needles falling within five meters, Huang Donglai's hearing is four times that of ordinary people, but these words came out of Huang Donglai's mouth, then it must be inaccurate, he must have falsely reported his hearing.

Ruohan analyzed, Huang Donglai's hearing may be in the range of thirty to forty meters.

What a monster!

"Don't act rashly yet, since we are being followed, then our whereabouts may have been exposed." Huang Dong said, "The other party is a middle and high master, not to be underestimated. ”

Ruohan nodded.

"That person is very well hidden, usually if you are so close to me, I can at least hear his breathing, but this person's breathing level is very high." Huang Donglai's brows couldn't help frowning slightly.

"Breathe...... Dan? Ruohan had a puzzled expression on his face.

Breathing level, this is Huang Donglai's own definition, which is the interval between a person's exhalation and inhalation.

The longer he breathes, the better his cardiopulmonary function will be, as everyone knows.

The best way to judge a person's strength is not to look at the surface and look at the muscles, but to observe his breathing level!

Huang Donglai divided the breathing stage into 10 segments, and 10 segments is 10 seconds.

If you breathe normally without intentionally, if you breathe in and out in 1 second, then it is stage 1, and this kind of person is usually frail and sickly, and the body is very weak.

Think about it, how can you live a long life with this asthmatic way of breathing in 1 second?

Therefore, the breathing level of normal people should be between 2 and 3 stages, and regular physical training, such as swimming and climbing, the breathing stage can reach 4 stages, and very few people can reach 5 stages.

Compared with normal people, this kind of person will live a longer and healthier life, whether it is explosiveness, endurance and physical fitness, it will be much better than ordinary people.

And the real masters, their breathing level is not easy to judge, anyone with more than 6 stages including 6 stages, the physical fitness will definitely be more than twice as good as normal people.

Except, of course, for people who regularly exercise their valves and lung capacity, such as singers.

In a word, the body with a high breathing level is not necessarily strong, but the person with a strong body bone will definitely have a high breathing level.

Ruohan's breathing stage is in the fourth stage, and the current Huang Donglai's breathing stage is 9 stages, that is, a cycle of 9 seconds, which is quite a remarkable breathing rhythm.

The breathing cycle here is not to deliberately slow down the speed of breathing, but to breathe naturally.

The longer the breath, the better his heart and lungs, the better his physical fitness, the more muscle strength he has, and at the same time, the sound will be very small, because of this, the sound of the other party's breathing is covered by the surrounding wind, birds, beasts and insects, even Huang Donglai, there is no way to judge.

Here, Huang Donglai was discussing with Ruohan about the person in the dark, and the macaque also saw Ruohan's slightly abnormal behavior just now.

"Did you find me?" The macaque thought silently in his heart, "What a great guy, no wonder this girl dares to rebel, it turns out that she has found a backer." ”

While thinking, the macaque's heart became more and more excited, and when he met the master, the blood in his body began to boil, wanting to touch Huang Donglai's warning net and probe Huang Donglai's details.

It's an instinctive reaction of a master.

However, the macaque still managed to stop the excitement.

Although the young man seemed frivolous and unworldly, he was told by a killer's old instinct not to be careless.

"There are wolves in front and tigers in the back, and we are surrounded?" Ruohan couldn't help but ask.

"Not necessarily, the other party just followed us and didn't make any further moves." Huang Donglai replied, and then couldn't help laughing, "Master, this is probably the most powerful one I've ever seen besides my master and someone." ”

"Don't sigh, what's next? Home? Or do you insist on moving forward? Ruohan asked.

Although Ruohan is an A-level killer, he is still much inferior to Huang Donglai and S-class killers in terms of experience and judgment ability.

"Solve the back first, let's pretend not to find him, and walk slowly to the back together, and when we get closer, then he will definitely make a move, and then there will be a friction sound, which can be heard by me, once he shows his feet, let's not go up first, but surround him." "Of course, it doesn't matter if he doesn't move, once I get closer, I can hear his heartbeat." ”

No matter how much a person can hide his voice, but the sound of his heartbeat can't be hidden.

"Yes." Ruohan nodded, and at the same time cheered up the spirit of twelve.

This time, Huang Donglai only brought three things, one is a mobile phone, so that it is convenient to get in touch with Fang Jiaqi and Fang Jiaxue at any time, and at the same time, he can monitor the movements around the villa, but it has been adjusted to vibration mode.

The phone vibrates on the skin, and this vibration will be dissolved by the person's skin, so that it is silent, so there is no need to turn it off.

The second thing is the steel ball.

However, Huang Donglai only brought five.

If you bring too much, the steel balls will collide with each other because of walking, so these five steel balls, one Huang Donglai is placed in the pants, one is placed in the watch of the clothes, two are sandwiched between the little finger and the ring finger of the left and right hands, and one is hidden under the tongue.

The third thing is a razor blade that is plastered on the inside of the arm.

"Let's go." Huang Donglai gave an order to Ruohan, and then slowly walked back, and the place where the macaque was hiding slowly shortened from thirty meters to twenty-five meters, twenty meters, and fifteen meters......

The battle is about to begin!

After this night, Huang Donglai and Ruohan, who will die?