"Relay tracking?" Zhou Xin asked, "What do you want to do?" ”

"Captain, brother, look." At this time, Atlas showed a simple diagram on the screen, "Because our detectors are not as fast as those attackers, we will always lose their targets after following them for a certain distance, right?" If we don't withdraw the probe after we lose it, but continue to stay there and continue to track it the next time the other party retreats, then we will be able to follow the ground even further? ”

After explaining her thoughts in detail, she added, "Of course, people have said before that this method is quite cumbersome, and it requires arranging a lot of detectors to relay it. Moreover, if the other side temporarily changes the retreat route during a certain retreat, then all the work we have done before will be in vain. However, recent observations suggest that the attackers are less likely to change their retreat routes. To be sure, we can also choose several different retreat routes to track at the same time. ”

While listening to the little girl's thoughts, everyone's hearts were also thinking, and not long after she finished speaking, Zhou Xin said slowly: "It sounds like this method is quite feasible——? ”

"Hmm." Spred nodded in agreement, "It's a bit of a hassle, but at least we can start acting immediately, and I don't know how many variables it will add compared to waiting another week." And, as you mentioned earlier, even if you can make a device specifically for underwater use, its performance may not be as good as that of the other party. In that case, it is better to act according to this method first. Of course, it's best if we succeed, and even if we fail, we have nothing to lose. What's more, at that time, special underwater equipment will also come in handy. ”

"However, there are some questions that I don't know if you have considered or not." After both Zhou Xin and Spred expressed their approval, Dart raised his doubts, "You know, our detectors are not only inferior to those attackers in terms of speed, but also inferior to each other in all aspects. Especially in the most important detection distance in tracking, while the detector can observe the other party in the field of vision, our detector will definitely appear in the opponent's field of vision, and this will not cause the opponent to attack? More importantly, even if the other side thinks that a small number of probes are not a threat and they are lucky enough not to attack, who can guarantee that our intentions will not be detected by the attackers after discovering that the number of probes along the retreat route is starting to increase? ”

"Brother Dart, have you forgotten the small detector?" As soon as Dart's words fell, Atlas replied, "Although the performance of small detectors is more than that of the other party, they have at least one point - they will not be detected by the other party." Therefore, we can use a small detector as a postpost for the whole tracking, and in order to avoid being detected by the other party, we can also use a small detector to track in the second half of the tracking. ”

After the little girl had solved her doubts, Dart thought for a while before she spoke, "In that case, then I don't have any problems here." ”

At this time, Zhou Xin and Spred glanced at each other, and after seeing Spred nodding slightly, Zhou Xin said: "If there are no other problems, then we will act according to this method first." ”

Then there's the question of how to choose the route to track. Eventually, based on the information provided by Atlas, the group decided on four routes, including the one they were most familiar with, starting from the ruins of the largest town. After all, it is there that it is attacked most frequently and is the easiest to track to find targets.

Once the route has been decided, the next step is to follow up on the specific work. It can be said that it is no coincidence that the book is not written, and not long after Zhou Xin made his decision, one of the ruins they chose was attacked by the other party. Needless to say, Atlas made arrangements for tracking at the first time.

It didn't take long for the starting towns of several routes chosen by Zhou Xin to be attacked by the other party one after another. And just like that, under the control of Atlas, a full-scale tracing began.

Although it is a comprehensive tracking work, the actual amount of work is not large. Because among the four routes chosen by Zhou Xin, except for the largest ruin, which is constantly attacked by the other party every day, the frequency of attackers on other routes is actually not high. In the space of a week, the attackers on one of the routes only appeared twice, leaving the probe only tracking about 10 kilometers. The other two routes were similarly illustrated, with attackers appearing only four and five times, and progress was similarly slow. Only by starting from the largest ruin, which Zhou Xin called the "main route", had made progress, until the production of the first underwater equipment was completed, the tracking probe had penetrated to a depth of about a thousand meters underwater. This situation made everyone's eyes involuntarily focus on the main route where they were most likely to find each other's gathering place first.

However, as the water depth increases, it becomes more difficult to track the detector. First of all, there is the problem of unfamiliarity with the environment, since the probe has basically not surveyed the deep sea below 1,000 meters before, it can be said that the tracking probe has stayed at this depth for a long time. Although the surroundings are also full of seawater, the unknown environment still makes Atlas, who controls the probe, inevitably a little cautious. Combined with the effects of high pressure and high salinity on the detector, the tracking process has slowed down significantly compared to before.

"How did the other party manage to maintain the same speed at this depth as in the shallow sea?" At this depth, the surrounding waters were already pitch black, and only a handful of special luminescent creatures passed by occasionally brought a glimmer of light, and even the detectors had to rely on equipment other than visible light to observe the attackers and their surroundings. At this time, a group of attackers just disappeared from the field of vision of the detector, looking at the direction of departure displayed on the screen and the speed of the other party's departure, Spred asked suspiciously.

"If we knew why, our detectors wouldn't be so slow now." Zhou Xin replied with a helpless tone......