"Brother Captain, this is it." Just as everyone's attention was focused on the new image, Atlas spoke.

At first glance, the cliff in the picture is nothing special except that it is located in the deep ocean, and all that can be seen is a large bare rock that can be seen by the light of the probe, and there is no sign of life in sight. So, at the first sight of it, Dart asked, puzzled, "Is there anything strange there?" ”

"Huh." At the same time as Dart was asking, after careful observation, Zhou Xin found that there seemed to be something strange on the screen. It's not that he saw anything special on the bare cliffs, but he thought the footage captured by the probe was a bit strange, and it seemed that many places in the picture were swaying slightly with the current, giving people a rather illusory feeling. Not only that, but Zhou Xinli even felt that the scene in front of him was familiar. After some reminiscence, it occurred to him that the image on the screen was almost the same as it was when he looked through the hot air on the fire. After realizing this, Zhou Xin asked in an uncertain tone, "Could it be that the water temperature near the cliff is quite high——? ”

"Brother Captain, you guessed right." The little girl nodded and confirmed, "The temperature of the sea around the location of the probe is quite high, almost seventy or eighty degrees Celsius. Not only that, but the temperature of the sea is even higher near the cliff, and not long ago the probe even measured a high temperature of more than 150 degrees Celsius near the cliff. ”

"There's a crater around here?" Atlas's description made Zhou Xin immediately think of one of the most likely speculations.

"We're pretty close to the right answer." "Although there weren't any clear craters in the area, the probe was able to observe signs of intense geothermal activity. From all the phenomena that have been observed so far, it may be that some ocean current flowed through a crack in the rock into the area of geothermal activity, heated up and flowed out of the position we see now, and it also brought out a large amount of minerals from the rock. The luminescent layer we saw earlier is exactly the area through which this hot ocean current flows, and the warm water and abundant minerals attract a large number of plankton to feed, which in turn causes a larger group of organisms to form a huge luminescent layer. ”

"I see." Including Zhou Xin, everyone present had a sudden realization on their faces. Only Dart appeared slightly disappointed after Atlas determined that the luminous layer had nothing to do with the attackers.

While lamenting the magic of nature, Zhou Xin did not forget to get down to business. Now that the cause of the formation of the luminescent layer has been investigated, he asks Atlas to retrieve most of the detectors, leaving only a few to continue studying the peculiar luminous layer. It just so happened that the attackers didn't show up during the investigation, but not long after the probes were assembled, the attackers emerged from underneath them.

Then, after a period of waiting, the probe waited for the returning attackers. So, following the other party, the probe continued to dive deeper into the water.

After following those attackers through the luminous layer again, Zhou Xin was somewhat surprised to find that they actually turned on their own lights.

"I didn't expect them to be cautious enough." After seeing the faint light that appeared in front of the detector, Zhou Xin couldn't help but say, "I actually turned on the light when I got here." ”

"Maybe it's because of the glow." Dart guessed, "With the glowing layer in disguise, the observer above can't see the light they emit at all." ”

"Whatever the reason, it's at least a good thing for us." Spred answered.

Spred was right, the attackers became more visible to the detectors when the lights were turned on, allowing them to track each other from a greater distance. But even so, after nearly half an hour of tracking, the attackers eventually disappeared completely.

Unlike the attackers, the detectors behind them did not even dare to turn on their own lights. After the other person disappears, darkness regains in the screen. Looking at the big screen at this time, Zhou Xin frowned slightly, "Atlas, how deep is it now?" ”

"It's more than six thousand."

"It's already six thousand meters and hasn't arrived yet?" Zhou Xin muttered to himself.

"In this way, they should have to hide at the bottom." Spred answered.

"Atlas, what is the exact depth of this trench?" Hearing Spred's words, Zhou Xin asked again.

"It's about 7,500 to 8,000 meters." The little girl replied, "For fear of being discovered by the other party, the detector did not turn on all the equipment, so it could only get an approximate value." ”

"Hmm." Zhou Xin nodded, and then he didn't say anything, but turned his attention to several other tracking routes.

What surprised Zhou Xin was that after more than ten days of tracking, two of the other three tracking routes actually converged together. And this converging route, like the rest of the route, leads to the trench like the main route. However, due to the low number of attackers on these two routes, one of them only penetrated about 3,000 meters of water, and the other route only reached a depth of 2,500 meters. But even so, after a period of observation, Zhou Xin still analyzed some clues from these two routes that may not even be half of the journey.

"Now it seems that there are at least three of those raiders gathering on the planet." Zhou Xin looked at the screen and said, "Including the main route, these three routes are far apart, and it should be impossible to gather together in the end." Then he added in a speculative tone, "Judging by the attacks on the planet, there may be far more than three of their gathering points. ”

"If there really are so many gathering places, it doesn't mean that the number of people hiding behind the other side may be far greater than the ones we have already seen." Dart said with a solemn expression, "The scale of a single undersea defense system is so huge, what kind of powerful civilization will that continental civilization on the planet be?" ”

"We'll probably only find out when we find one of the gathering places." Zhou Xin said thoughtfully......