There was nothing to say all night, and at half past six in the morning the next day, after breakfast, Gu Jin personally climbed the communication watchtower above the wheelhouse of Nicole, and took a telescope to inspect the foggy bay in the distance, as well as the coast and estuary area with a black oppressive line.

According to the division of labor in advance, Zhu Beiguo led four small boats to the big river in the north, which was called the Mishen River in the old world, and Li Sanduo led four small boats to measure the river channel in the south---- which was called the Embury River in the old world.

At this time, the sea is very foggy, which is a common sight in tropical bays, but the water is calm and the water in the distant estuary is so gentle that it is almost impossible to see the flow.

The Nicole and Pride first lowered four dinghies, and after the two teams met at the Pride mooring point, and after a simple assignment of personnel and boats, the two dinghy teams began to move separately, one south and one north, slowly rowing towards the mouth of the river.

According to the exploration plan, the dinghy began to measure the depth of the water shortly after approaching the shore, and then mapped all the way to the top of the peninsula, and after completing the work, the two teams went upstream, using plumb weights to manually measure the water depth on the banks of the river and in the main channel.

Now everyone is quite familiar with the work of surveying and mapping the river, and now each survey team is divided into two groups, each with two small boats, one group surveys the main channel, and the other group surveys the coast of the peninsula, and the two groups guard each other and cooperate with each other.

Subsequently, Nicole put down the four boats responsible for communication, and they will also be divided into two teams, respectively following the two exploration groups in the north and south along the main river spacing, each boat has four people, in addition to the walkie-talkie, other equipment and exploration team members are basically the same, each person is also a Colt ****, an AK47 processing shovel.

In addition to their communication missions, they also have a guard mission, and instead of fixing on one spot, they slowly patrol back and forth in the middle of the main channel, keeping communication open to the exploration team, Nicole, and Pride at all times.

Measuring the water depth on the survey dinghy is more tedious and boring, and the only measuring tools are the probe rod and the rope tie plumb weight, so the dinghy has to stop the boat for survey every 20 or 30 meters.

In order to avoid missing the measurement, each group is two small boats staggered and side-by-side measurement, and then they have to row back and forth staggered back and forth, so that it is possible to get a general understanding of the water depth of this section of the river, so the distance between the north and south teams for in-depth mapping is less than three kilometers in the whole morning.

Before leaving, Gu Jin told everyone that there is no need to measure the water area with a water depth of more than four meters, because the full load waterline of the Pride is 3.6 meters, and in the long future, we will not be able to build a ship with a displacement that can exceed the Pride.

At twelve o'clock in the afternoon, Duan Leyue, the ship's doctor who stayed behind on the Nicole, and Dai Xiaoshan, who was the Pride, reported through the intercoms that lunch would be ready in half an hour.

So Gu Jin ordered the work to be called a day, and the two teams from the north and south all returned to the ship for lunch---- for the sake of safety, they would rather work slower than have a picnic outside.

Caution and caution are the consistent style of Captain Gu, and everyone has long been accustomed to this, so no one complained except for paddling back to the mother ship.

An hour after lunch, the two teams set off again, because there are several peninsula-like protrusions on the north shore, the coastal survey workload is very large, and the south bank is relatively gentle, so the surveying and mapping progress of the north and south teams began to have a gap, this day, the Zhu Beiguo group of the northern channel measured a total of eight kilometers, and the Li Sanduo group of the south channel measured 12 kilometers, according to this speed, it will take three days to complete the river surveying and mapping of more than 20 kilometers at most, for this surveying and mapping progress, Gu Jin thinks it is acceptable.

During this period, Gu Jin did not agree to Li Sanduo's request to "try to land" from the south bank alone, because they found that there were several bare lands without trees on the riverbank, as well as several outlets from small streams, obviously these openings were all places where they could land, but Captain Gu did not agree to Li Sanduo's request, he insisted that after the survey work was completed on both sides, all the personnel would be gathered and then land together, the reason was that those two words were ---- safe.

In the following two days, the survey work of the north and south roads has been carried out at the same time, although there is no trace of the aborigines on both sides of the river, but Gu Jin still asks everyone to be vigilant at all times, resolutely not to slack off, and even asks everyone to remain quiet in their work, which is obviously much stricter than the requirements when they landed on those uninhabited desert islands.

But as you know, given the fact that we are natives in the open and in the shadows, we all think that this kind of caution is indeed warranted.

According to Zhu Beiguo, maybe there have been a few pairs of eyes staring at us in the jungle on the bank of the river, and he said that he really felt this way, but this emotion also seemed to affect his team, making the team members also become a little suspicious.

For example, **, who came from the Nicole support, is very nervous at this time, his AK47 is always straddling his chest, and the muzzle of the gun is pointed at the shore, unlike the other team members, the gun is safely carried behind his back.

However, his nervousness finally came to fruition, and on the morning of the third day of the survey, **, who was collecting the lead rope on the dinghy near the river bank, inadvertently looked up and found the situation - several shadows were shaking in the jungle on the shore.

**shouted, picked up*** is a series of point shots, bullets hit the trees on the shore to the top of the tree, this time everyone jumped, several people on the dinghy nervously stopped their work, looked around, and asked what happened, at this time there was also a shouting inquiry on the intercom, but the initiator** did not respond, and the partners who were in the dinghy with him also looked around in confusion, at this time**just stared blankly at the depths of the jungle, where it was very quiet.

**Seeing Zhu Beiguo rowing the boat over with a anxious face, he pointed to the jungle and said, I saw a few figures just now, as if they were hanging on a tree......

You're out of sight, right? The monkey hung on the tree.

I don't know who muttered on board.

Shaking his head, still not speaking.

At this time, Zhu Beiguo's face suddenly changed, and he pointed to a gap in the bare mud ground on the bank of the river more than ten meters away and said:

"Look, what's that?"

"A bamboo pole?"

"Holy! It's a wooden spear used by the natives! ”

"That's right! The wooden spear of the native has fallen to the ground! ”

Several people in the dinghy shouted.

When the people on several dinghys heard this, they subconsciously turned into a low posture almost at the same time, and they lay on the side of the dinghy, and the sound of bullets clattering everywhere rang out.

"Yes...... Do you need to check it out? ”

Someone asked in a whisper.

"Did that shuttle hit something?"

"Wait for me to report ......"

Zhu Beiguo took out the walkie-talkie and began to report to the Nicole that at this distance, it was beyond the range of direct communication, and the communication boat behind it needed to be relayed.

A few minutes later, the dinghy in the rear passed the verbal order of Captain Gu on the Nicole, and the content was very simple, only eight words:

"Immediately close the team, return to the Pride!"

So the North Road Survey Team, which received the order, immediately turned around and quickly rowed away from this water. What they didn't know was that shortly after the dinghy left, a trickle of blood flowed out of the depths of the woods and slowly flowed into the murky water, smearing the surface of the water, and after a while, several crocodiles that smelled blood appeared in the water, and they climbed up the mud bank and followed the blood into the depths of the jungle......