"Go to the lake early to row and take a look, and go home early after the transfer, you think so, right?" Jiang Feng guessed the implication of Lin Wan's words.

"Yes. Lin Wan replied.

"Well, let's go, we can go to the lake to row around when we get out of this Peach Blossom Island, we have to go around the lake to see if we shouldn't go back, and this Peach Blossom Island is almost oval, so the two ends of this Peach Blossom Island are relatively long, and we shouldn't go to both sides of Peach Blossom Island, we should still go forward, and it is straight forward." Jiang Feng is flexible and thoughtful.

"You're right. Lin Wan looked at Jiang Feng's agreed opening and replied, and at the same time, a glint flashed in her eyes.

Peach Blossom Island is not big or small, saying that when you get out of Peach Blossom Island, you will really want to get out of Peach Blossom Island when you are unified, and then you will walk out of Peach Blossom Island in 19 minutes from when you are unified.

"Out of Peach Blossom Island. Lin Wan said.

"Miss Lin, this lake should be quite big when you can't see the edge at a glance" The bodyguard had already stood in front at this time, standing beside Lin Wan, Lin Wan's side stood on Jiang Feng, and the bodyguard stood on Lin Wan's other side.

"So you want to encourage your Miss Lin to retreat?" Jiang Feng turned his head and walked past Lin Wan who was standing in the middle, looked at Lin Wan on the other side, and her bodyguard said.

"It's okay, with you and him to protect me, take a boat and go rowing well, don't fall into the lake and drown, this lake is big, but how amazing can it be? Could it be that there are water ghosts in the lake?" Lin Wan looked at the bodyguard on the other side of her and asked.

The bodyguard was silent and did not continue to object.

So Lin Wan looked at the lake in front of her again.

This lake is bigger than Yuzhu Lake, it is the same Yuzhu Lake where she and Fang Lu went to have a picnic by Yuzhu Lake before, but Jiang Feng is not afraid, Lin Wan can see through it before, Jiang Feng looked at Lin Wan's side face firmly and decided not to change his mind, and at the same time felt that there were some things that had to be said to Lin Wan.

"Let's get on a boat and row a boat to the lake to take a look, and then when we come back safely, we can do a good deed, tell the Municipal Garden Bureau about the mystery of this lake, and the Municipal Garden Bureau will remind people how to guard against the mystery of this lake in this wild ecological park and by this lake."

"That's great, don't you?"

Jiang Feng became excited as he spoke, and when he said how good it was, he began to look at Lin Wan with burning eyes, and Jiang Feng said that he would protect Lin Wan and protect Lin Wan. As for why he chose to go boating in this lake when he brought Lin Wan and him here, it was because Jiang Feng was usually very busy, in addition to being busy with work and various things, he didn't come to this lake to row around alone.

"Yes, but I didn't expect you to be so keen on doing good. ”

After Lin Wan responded to Jiang Feng's words, she said in her heart, no wonder, because she thought that she and Jiang Feng met for the first time, she was almost kidnapped, and it was he who saved her.

So Lin Wan quickly said again: "Let's quickly get on the boat and row to the lake to take a look." ”

Jiang Feng immediately got on the boat when he heard this, and then stood on the side of the boat to pull Lin Wan on the boat, he stretched out his hands to pull Lin Wan, and said in a strong voice: "Stretch out your hands to me, and I'll pull you up." ”

"Good. Lin Wan agreed.

Taking a step or two forward, Lin Wan stretched out her hands and stretched them towards Jiang Feng, Jiang Feng grabbed the wrists of Lin Wan's hands, and soon pulled Lin Wan onto the boat.

The bodyguard was the last to get on board, and of course the bodyguard got on the boat himself.

They all got on the boat, first Jiang Feng rowed the boat with an oar, and at first Jiang Feng just looked forward and rowed the boat, and the rowing speed was also a bit fast.

Lin Wan and the bodyguard were sitting in the boat, but they were just looking at the lake in front of them, not looking around. After Jiang Feng rowed the boat and walked a section of waterway, he took the lake that Jiang Feng said to heart very mysteriously and vigilantly.

They began to look around one after another, and Jiang Feng slowed down the rowing speed a little.

"This lake, except for being quite big, I don't seem to see any mystery?" Lin Wan, who had looked around on the lake, was surprised, so she said what she wanted to say, and after a while, Lin Wan said cautiously: "But the rumors say that it is very mysterious and should not be taken lightly." ”

"Don't take it lightly. The bodyguard picked up the key points of what Lin Wan said at this time, one is to let Jiang Feng also be vigilant, and the other is to respond to Lin Wan's words, now they are in the same boat, they advance and retreat together, what they all face together, what Lin Wan said is not only for Jiang Feng, now and before he followed Jiang Feng and Lin Wan is different in nature.

Jiang Feng looked at Lin Wan and didn't say anything, rowing his boat and looking around from time to time.

It wasn't until he rowed the boat for a while that Jiang Feng had nothing to say, and while rowing and walking, he turned his head to look at the bodyguard who was sitting in the boat with Lin Wan and said, "That, can I change you to come over and row the boat?"

The bodyguard looked at Jiang Feng fixedly, and after a little consideration, he agreed, and he said, "Okay!"

Then he stood up and walked towards Jiang Feng, the bodyguard walked to Jiang Feng's side and stretched out his hand to hold the oar of the rowing boat, and handed over the oar of the rowing boat, Jiang Feng let go of the oar of the rowing boat and walked away.

Jiang Feng, who walked away, could also sit, so Jiang Feng sat down on the boat.

"Jiang Feng, where do you think the mystery of this lake is? What will we encounter? Could it be a robbery or a raging storm?" Lin Wan looked at Jiang Feng and asked, and said her guess questioningly.

"It's not like robbing, there are few people on this lake to play, there is nothing to rob, and if you rob, it is impossible for the person who robs others to escape mysteriously, and there is no trace of it, and there will be no clue left, and now there is no clue at all, so this guess is wrong. ”

Jiang Feng analyzed, and answered quickly, and he had already thought of this guess in his heart.

"It's possible to have a violent storm, and if you overturn the boat, you will definitely die if you can't swim in such a big lake, and you can't swim out of such a big lake. There is also a possibility, it is also possible that the fog makes people unable to get out, and people who are trapped for three or four days, four or five days will starve to death. Jiang Feng cautiously said his speculation.

Lin Wan couldn't help but glance down at the watch on her wrist, the three hands on the scale watch showed that it was eleven o'clock in the morning, the hour hand pointed to eleven, the minute hand just pointed to the sixty scale, and the second hand also happened to point to the sixty scale.

After sitting in the boat and walking a little more waterway, they saw that there was some fog on the lake in front of them, not much but all visible.

Lin Wan knew that what Jiang Feng said had come true, the mystery of this lake was the fog on this lake, and the fog she saw now was not big, so Lin Wan wondered if the fog was still ahead, or was the time not yet up?

It shouldn't be that the time has not come, it stands to reason that the fog is used to exist and disappears in the morning and noon, but the special fog may not disappear, and if there is a fog, the fog should still be ahead.

"Jiang Feng, have you ever thought about how to deal with it?" Lin Wan looked at Jiang Feng and finally felt really nervous, she couldn't help pinching the hem of her own skirt.

However, Jiang Feng still looked calm, and Jiang Feng said unhurriedly: "Don't worry, I have already thought of countermeasures." ”

Lin Wan, who looked nervous, suddenly looked much better, and she didn't pinch her own skirt anymore.

"Are you going to go on?" the bodyguard stopped rowing, turned his head to look at Lin Wan and asked.

"Go on, and I'm going to find out if there's anything else about this lake besides the fog. Jiang Feng responded decisively, although he knew that he was not asking him, he also responded.

"Let's go, I believe that Jiang Feng can deal with the fog, and let's see if there are any other mysteries in this lake. Lin Wan spoke to the bodyguard.

The bodyguard first believed that Jiang Feng continued to row the boat forward, and then felt that Lin Wan should be quite persistent and not easy to persuade.

After five or six minutes they really encountered the fog, and no one spoke, and the bodyguards rowed the boat into the fog.

After rowing in for a short while, the waterwayman lost his way, and the bodyguards stopped rowing, and they all wanted to put down the oars in their hands and beat Jiang Feng a few times, feeling that Jiang Feng was very bad.

Although it didn't come as expected, the bodyguard put down the oar, turned around and looked at Jiang Feng viciously and said, "Didn't you say that you had already thought of a countermeasure to deal with this big fog?"

Jiang Feng knew that he was annoying, but Lin Wan didn't hate him, Jiang Feng hurriedly said: "Don't worry, I didn't lie to people that I said that there is a countermeasure, it is really a countermeasure." ”

After finishing speaking, Jiang Feng stood up and took out a whistle in his trouser pocket.

"What are you doing with the whistle? Is it blowing the whistle and praying that someone can hear it and come to save us? Hehe, don't you think it's a joke?" The bodyguard looked at Jiang Feng, and the malice in his eyes did not diminish in the slightest.

"No, you'll find out in a minute. Jiang Feng replied, looked at Lin Wan who was sitting again, and said, "Lin Wan, I see that the watch you are wearing has a second hand, so I need you to do me a favor." ”

"Okay, can I help you time it?" Lin Wan asked, and seemed to understand Jiang Feng's countermeasures in her heart.

"Yes, I'll be whistling in front of me in a moment, and within ten seconds I'll hear an echo that we're not that far off the cliff, and if there's a cliff, you can go around the cliff and go up to the island or on land. If I don't hear an echo within ten seconds, I'll whistle in a different direction. Jiang Feng said to Lin Wan very seriously.

"Okay, I understand, I'll watch the time carefully. Lin Wan opened her mouth to respond.

Jiang Feng is very smart and what he said will work, if Jiang Feng heard an echo 3s after blowing the whistle, that is, three seconds after blowing the whistle, then they were 510 meters away from the cliff at this time.

Because the normal speed of sound propagation is 340m/s, the time of 3s is to hear an echo, and the sound is a round trip, which means that the time for sound to travel from the boat to the cliff is 1.5s, then the distance: 3÷2×340=510m, so in this case, they are 510 meters away from the cliff at this time.

Jiang Feng reads a lot of books that are useful, and Lin Wan also understands because he reads a lot of books after Jiang Feng said the countermeasures, although Jiang Feng did not say the conversion formula for finding the distance, but Lin Wan also knew it, and those who know the conversion formula can really understand Jiang Feng's words after listening to them.