After thinking about it, Ye Bing decided to understand the thoughts of the black crescent moon first.

If the other party agrees to come, it is not too late to send troops to escort all the way over, saving a trip in vain, and adding a lot of danger.

But how do you make contact if you don't send someone over?

Since the beginning of the cataclysm, the signal network has long been interrupted, and mobile phones and computers are naturally unusable. The transmitter should do some tricks, but he hadn't agreed on a frequency or time with the Black Crescent before, so it obviously didn't apply either.

That...... What else can be done?

After thinking about it, Ye Bing scratched his head a little depressed and said:

"Alas, it's really troublesome for the modern world to lose the Internet, and in ancient times, there was still a flying pigeon to pass the book, and now it's not even ...... Hey, wait! ”

Speaking of this, he suddenly thought of something, and slapped his thigh and said:

"That's right! I didn't think of it before, and there is such a trick! ”

Ye Bing hurriedly jumped the interface to the mechanical barracks, and accurately selected a class from it-

Micro reconnaissance aircraft!

And one is two, which costs a total of 10 energy costs.

In this way, there are only 26 energy left in the base, but Ye Bing is not in a hurry, anyway, he is still in the base, and he can earn it anytime and anywhere if he needs energy.

Ten minutes later, two miniature reconnaissance planes floated together over the main base.

"Sure enough, it's almost as small as a scout robot, and it doesn't make any noise during the flight, which is amazing. In this case, it is very safe to use it for reconnaissance! ”

said so, but Ye Bing created them this time, not entirely for investigation, but more importantly, for the transmission of messages.

Ye Bing picked up the backpack from the ground and took out a piece of paper, a pen and a bundle of tape from it.

He sighed luckily. Fortunately, I was prepared.

However, in fact, even if the base is not fully prepared, you can find everything in a few minutes when you return to the safety zone. With the Milky Way, returning to the safe zone has become an extremely comfortable and fast thing, and you can sit firmly for ten minutes, and the road will be navigated by the Milky Way's intelligent AI, and you don't even need to control it, this is the real freewheeling.

Ye Bing briefly talked about the discovery of people in the safe area and his worries, and finally asked if the black crescent was willing to come over to help.

Besides. At the end of the letter, Ye Bing talked about the security zone's plan to establish a defense force. He wrote in the letter that even if Black Crescent couldn't move his family, he hoped to send at least a few instructors to teach hand-to-hand combat. As soon as the other party has any ideas, write another reply and paste it on the miniature reconnaissance plane to establish communication.

In fact, in terms of hand-to-hand combat techniques, Ye Bing estimated that Xu Yu must not be ambiguous. But it is estimated that after the establishment of the new security zone. There will also be troop training over there, and there will definitely be insufficient manpower at that time, if the black crescent can send some instructors, it can solve a big problem.

After writing the letter. Ye Bing signed his name, folded the letter into several folds, and put it in a small box.

Then, Ye Bing stuck the small box on the mechanical claw of the miniature reconnaissance plane. That's it.

Obviously, the mechanical claw should be smart, and things are hung on it and fastened tightly. If it weren't for Ye Bing's order, he wouldn't let go at all. Unless there is a storm, it will definitely not fly, it can be said that the safety factor is very high, at least hundreds of times more reliable than the flying pigeon.

After everything last night, Ye Bing checked again and again, until he confirmed that there was no problem, and then walked out of the base with the miniature reconnaissance plane.

Ye Bing conveyed the location of the Black Crescent Moon Villa in his memory to the miniature reconnaissance plane, and gave an order:

You must see Su Chengtian before you can release the mechanical claw, otherwise you have to hold it firmly. If it is forcibly destroyed by force, it will immediately take off and return to the base with the box!

And if you see Su Chengtian herself, you can directly hand over the box to her and stay for a day. At the end of the day, regardless of whether the other party has handed over new items or not, return to the base immediately.

With this in mind, even if you can't know what's going on in real time, you can draw conclusions from the final results.

A day later, if Su Chengtian's reply arrived, everything went well, no matter what the final outcome of the discussion was, at least the other party successfully received the letter and replied.

A day later, if the miniature reconnaissance plane returned, but there was nothing on the mechanical claw, it meant that the negotiations had failed, or something had happened to Su Chengtian, and he could not reply in time. But the probability of this happening is still relatively low, and since you can receive the letter, it means that it is quite peaceful over there. And one day, no matter how much research, is enough to come up with results.

In addition to the above two points, the worst outcome is that the miniature reconnaissance plane comes back with the iron box intact, or even does not come back at all.

The latter two situations meant that the miniature reconnaissance plane was intercepted before it flew to the Black Crescent Villa, and someone forcibly took the box tied to the mechanical claw, so the miniature reconnaissance plane had to come back early.

As for the situation of not coming back at all, 99% of it was directly destroyed by someone. In this way, the content of the letter is exposed, and the direct consequence is that the safe zone will be known to more people, and the persuasive force will be further enhanced.

However, what is relatively reliable is that Ye Bing did not mention the superfluous information in the letter from beginning to end, let alone the specific location of the safe zone and the Black Crescent Villa. Therefore, even if someone gets the letter, there is no way to determine the safe zone through that word.

After making all the preparations, Ye Bing slowly flew into the sky with a miniature reconnaissance plane, and disappeared in a blink of an eye.

It was already dark outside, and the maximum height at which the miniature reconnaissance plane rose into the air was about forty meters above ground level. Although this altitude is far less than that of large aircraft, it is at least not within the reach of ground forces, unless a sniper shoots down.

However, seeing that it was dark outside, no matter how good the sight of the sentry officers of a certain organization was, the possibility of discovering such a small reconnaissance plane from a height of 40 meters would not be much greater than finding a grain of millet from a bag of rice.

After finishing the "Flying Pigeon Biography", Ye Bing sat back in front of the main control again and began to think about follow-ups.

Take a look at the home base properties. Since the recovery vehicle has just collected a new batch of zombie corpses and magic crystals, the energy storage of the base has increased again.

Among them, the energy value increased from 26 to 37, and the number of inferior magic crystals directly changed from zero to 21.

After thinking about it, he still decided not to build Tianxiangting for the time being, but to get the gene enhancement injection first! (To be continued.) )