In order to give the alarm as quickly as possible, the observatory warning system has been improved, with a huge bell hanging at the doorway, connected to a clockwork mechanism, and the control switch is located on the lookout.

Because of the addition of Anrusu, the efficiency of these equipment has been improved to a new level.

"Someone's coming."

Since An Ruosu and the two joined, more than ten days have passed, but Chen Du still doesn't dare to relax his vigilance, Qingbei's calm is a bit abnormal, it stands to reason that if the other party is really monitoring, there is no reason not to know that An Ruosu and the two are here.

Chen Dui, Tang Jing and others reacted quickly, and the first step was to go to the lookout to see the situation clearly.

According to the warning sound just now, the enemy still has a certain distance, so there is no need to be in a hurry.

"Blue Monument?" On the elevator, Dong Junwei said worriedly.

"Possibly."

"They're finally here?" Last time, I was able to repel Yizhong, and I had the advantage of being surprised, but now, Qingbei's strength, coupled with the fact that the other party has been secretly monitoring them for so long, must be prepared, and it is impossible to be as easy as last time.

"Don't worry, unless they decide to break the net, we still have an advantage, otherwise they won't wait so long to attack." Chen Du comforted.

"Yes, but why didn't you move for so many days, so you chose to come at this time?"

"Maybe as Xiao An said, the struggle within Qingbei has distracted them too much." Chen Dudao.

An Ruosu nodded, "Yes, in the current external battle, no one dares to die, for fear that the loss will be too great, and the status will be lost when you go back." ”

"If that's the case, we should still have a pretty big chance of winning."

As the crowd spoke, they ascended all the way to the lookout.

Today, it was Sun Yuan and Lu Liangliang's turn to be on duty, and the two skillfully moved their positions out of the way, handed over the telescope, and pointed out the enemy's location.

Chen Du picked up the binoculars and looked over.

I saw about a dozen people walking along the main road.

Because the distance is too far, even with a telescope, you can only distinguish the number of people, but you can't see the appearance clearly.

Chen Du gave the telescope to Tang Jing, then Dong Junwei, and finally An Ruosu.

"It seems to be Tong Bin."

An Ruosu's voice trembled a little, as if the name had brought her bad memories.

"Are you sure?" Chen Du frowned.

Tong Bin, one of the three major stewards of Qingbei, who is at the same level as Song Yu, is obviously not a good sign when he comes here.

"I can tell from their size and movements, I should be right." An Ruosu tried her best to stay calm, but she still couldn't help but show fear, "They are here to arrest me and Yang Li's ......"

It finally happened, but now that it's come to this point, it's useless to worry about it.

"Why did they come from the main road?" Dong Junwei held the binoculars and said suspiciously, "With the strength of the Qingbei, it shouldn't be a problem to take the path next to it, isn't it obvious that it will be exposed now?" ”

"Maybe people don't care."

"Huh?"

"According to Xiao An, Qingbei has numbered and monitored all the human gathering points in the school, and our side is the No. 9 surveillance point, but at first they didn't know who we were, and it wasn't until the incident of the invasion of No. 1 that they began to pay attention to us."

"So what?"

"So they know part of our strength, at least the presence of explosives."

"But they still have the courage to walk from the main road, indicating that they are prepared?" Dong Junwei frowned.

"They may also want to put psychological pressure on us."

Chen Du didn't know that Tong Bin, but listening to An Ruosu's description, it seemed that he was just a rude and reckless man, and the current situation seemed to verify this person's arrogant and domineering character.

"In that case, should we take the initiative to attack?" Dong Junwei asked.

"Of course."

Chen Du did not hesitate, "No matter what, I have to try it, even if it doesn't work, at least we can know their methods, and our equipment has also been upgraded, I'm afraid Qingbei doesn't know this, it is estimated that Cao Zishan is about to bear it." ”

Really.

The next moment, at the intercom speaker of the observatory, Cao Zishan's voice was heard

"Senior, do you want to make a defensive attack?"

The voice is eager and excited.

The communication pipeline connects the ground floor and the observation decks on each floor, so that communication on all three levels is now barrier-free.

Cao Zishan naturally received the alarm as soon as possible and immediately entered a state of preparation.

After practicing for so many days, I'm already hungry and thirsty now.

The space of the high fort is a little wider than the observation tower, and although there is only Cao Zishan alone, there is more weapons in reserve.

On the ground beside him, rows of giant bombs were placed.

The diameter of these spherical explosives is wider than Cao Zishan's shoulders, and it is difficult to wrap around, but the stone balls are set up with holes the thickness of ten fingers, similar to bowling balls, and they are used for easy grabbing at first glance.

If it were an ordinary person, such a large stone ball, I am afraid it would be difficult to even push it.

However, for Cao Zishan, who once pulled the corpse of a frog, it was naturally a drizzle.

Strength has never been a problem for him, as a humanoid turret, the most troublesome thing is accuracy, but after these days of training, the results are also remarkable, at least there is the strength of a battle.

In addition to the stone balls, the most conspicuous thing is the row of huge stone spears on the wall.

These stone spears are almost twice as long as a human and are thicker than regular spears.

If you look closely, you will see that their materials are exactly the same as those of grenades.

This is Qiming's latest weapon.

The user, Cao Zishan, named them "Super Invincible Rockets" - of course, as their makers, Dong Junwei and Chen Du did not admit it.

To put it bluntly, this is a change in the shape of a large grenade, from a spherical shape to a spear-throwing shape.

Even if it is a stone ball, after a certain amount of smallness, the effect of air resistance on it will become very large, so the grenades used in the high battery are magnified and the size of a small steel ball.

Still, it can't be said to be perfect.

In this case, explosives in the shape of a spear came into being.

This not only reduces the effect of air resistance, but also makes it easier to throw, but it has not been tested in actual combat, and still retains the original grenade.

Because foreign affairs have always been under the jurisdiction of Chen Du, especially in war, according to Qiming's statutes, Chen Du has the supreme command in wartime, so Cao Zishan asked him directly.

Chen Duan walked up to the speaker and slapped one hand on the horn.

This is the tone before the call, so that the other person is prepared.

He leaned close to the intercom and hesitated a few times before saying, "Once in range, shoot freely." ”

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