"Can you tell what bubble it is?" I asked.

Ling Ge shook his head: "I'm familiar with firearms, but I don't know much about bubbles." ”

That's right, she's a special attacker, it's reasonable to be proficient in individual weapons, and it's normal to understand special vehicles such as blankets and fake cars, but the big bubble needs to be operated by multiple people, and there is a bit of an antique weapon, he really doesn't need to understand, in modern warfare, all kinds of guide eggs fly in the sky, who still uses the big bubble to bombard?

But the power of this old antique is undoubted, the smallest crater I have seen, the diameter is also more than ten meters, generally more than 20 meters, the two-story supermarket (our original stronghold) although the location of the bubble is on the roof of the building, but the bubble bomb should be drilled to the first floor before exploding, half of the shelves on the first floor, all collapsed, all kinds of fish in the aquarium were spared, close to each other, and even became boiled fish.

I looked through the telescope and looked at the other island, the female students didn't have any questions, but the location of the mountainside was soaked, and the small fishing village below was not affected, before Ling Ge called to ask, except for a few girls who were shocked by the sudden huge explosion and had temporary hearing loss, there were no other casualties.

Patrolling to the south corner, Qian Dazhuang's family of four was unharmed, and the shoreline hotel was also intact, but Qian Dazhuang was very angry and asked Ling Ge to fight to defeat this enemy.

"Big brother, don't be impatient," I advised, "I don't know the enemy's situation yet, tell Sister Chu and the children that they can only move indoors on the first floor, and if there are any more bubbles, hide in the basement immediately." ”

Qian Dazhuang nodded: "Yes." Call me anytime if you have a task! ”

After patrolling around, when they returned to the North Point base, none of them slept, probably because they were worried that they would be hit a few more times in their sleep and buried directly in the reinforced concrete coffin.

"The ice bubble position should be farther away." Xiaoxiao intercepted a surveillance video we set up on the side of the bridgehead, the first time I played it, I didn't see anything, the second time, played at a slow speed of 4 times, I could barely see the light and shadow in the night sky, faster than a meteor, the third time, 16 times slower, this time I finally saw clearly, a yellow-brown, comet-like trajectory, shot from the direction of the city, from the camera interface about 11 o'clock, disappeared.

Ling Ge opened the map on her mobile phone, compared the video, took a protractor and a triangle, and made complex calculations and drawings on the paper map, and even used the symbol of calculus, and after five minutes, she finally calculated the location of the ice bubble position - Dis Mud Playground!

Ling Ge threw the pencil on the map and breathed a long sigh of relief: "Originally, I thought it was from the shore, but I didn't expect to be able to hit it so far, this shouldn't be a big bubble." ”

"What could that be?" I asked, Yangshan Island is about 70 kilometers away from the Dis mud playground, perhaps, it has exceeded the range of conventional big bubbles.

"The maximum range of the conventional big bubble is between 40 and 50 kilometers, and it can't hit so far. It should be a fire sword bubble, but," Ling Ge lit a cigarette, "If it's a fire sword bubble, the power is not right, the crater of the fire sword bubble can't be so ......"

Hell, a crater with a diameter of 20 meters, is it small?

"What's the difference, aren't they all bubbles?" Yin Luo asked.

Stop! It's time for me to pretend!

"It's different," I said to these bubble blinds, "the conventional bubble, also known as the bubble, is divided into two types: fixed bubble and self-propelled bubble, and the principle is the same, that is, the high pressure in the bubble chamber is used to push the bubble bomb out of the bubble tube——"

"It's dirty!" Dongdong couldn't help blushing.

“…… Can you be dirty about this? Lian Ye glanced at her, after all, she didn't have the function of launching a big bubble herself.

This is the big bubble, the bubble bomb itself has no power, but only flies in the air by inertia, and the trajectory is a parabola, which is somewhat similar to the principle of a rifle; The fire sword bubble itself is powered, and there is a flight part connected to the back of the bubble bomb, and the bubble bomb is in flight, and it can continue to power it until the fuel is exhausted, so the range is longer, which is similar to the principle of egg guide, and it should be regarded as a simple egg guide without guidance function. ”

After the explanation, I looked at Ling Ge, and she nodded approvingly: "In simple terms, the explanation is good." ”

"Oh, don't you do scientific research, okay?" Dongdong said anxiously, "Hurry up and kill them!" Otherwise, it's time to soak again at night! ”

"Hehe, are you getting less bubbles?" The cousin smiled and looked at Ling Ge, "I'll investigate first." ”

Xiaoxiao looked at her watch: "Ten minutes ago, I sent out an automatic navigation drone, and now it should have arrived at the bridgehead position to standby." ”

"Well done!" I touched Xiaoxiao's head, it was getting better and better!

Everyone turned on the mobile phone live broadcast, and sure enough, the new No. 1 drone (two No. 1s had crashed before, and it was replaced) had landed on the bridge deck, and Xiaoxiao controlled the drone to take off, because the road was relatively familiar, and flew straight to the direction of the playground.

Along the way, no abnormalities were found, and when the castle appeared in the drone interface, I asked Xiaoxiao to fly a little lower, since the other party has a big bubble, maybe there will be supporting radar equipment, and it is possible to find the drone approaching.

The drone descended, maintained a height of about five meters above the ground, moved slowly, and soon came to the outside of the playground wall, landed on the wall first, turned the camera, and observed it around, there was no zombie activity here, it became a safe zone, and no survivors were found, and it was lifeless.

After a short pause, the drone flew back to the ground, still close to the ground, bypassing the various equipment in the playground, until it flew under the castle, and no traces of human activity were found.

"It can't be that I miscalculated, right?" Ling Ge hugged his shoulders, doubting his calculation ability, after all, it was all oral calculations, and he didn't use a calculator, so it was possible.

"Fly to the top of the tower and have a look." I said to Xiaoxiao.

The drone was raised and landed on the windowsill at the top of the castle tower, from which the ground area within a radius of 2 kilometers could be clearly observed, and there was still no trace of a large bubble.

However, when the drone lens turned in circles for the second time, Xiaoxiao suddenly stopped in a certain direction, turned back a little, and made the picture bigger, and then bigger.

"See!" My cousin pointed to the screen and exclaimed, "Deep rut marks! ”

I zoomed in on the screen of my phone, and sure enough, on a certain lawn in the playground, there were several messy and deep wheel marks, very narrow, looking along the wheel prints, even when I reached the paved road next to it, because of the great pressure, I could still see the dents on the road surface, and the wheel prints extended to the southeast and disappeared at the entrance of a sunken square.

"Subway station!" My cousin said with certainty that she had worked at Dis Mud, and she was familiar with every plant and tree in the playground.

"It turns out that the big bubble is hidden underground, Gao Ming!" Ling Ge nodded, took the handle of the aircraft from Xiaoxiao's hand, and was about to fly over to check it, when suddenly, I heard a popping sound from the drone's radio, which sounded a little familiar.

"Wait a minute," I pressed Ling Ge's hand, "turn the camera back and take a look!" ”

The drone lens is reversed 180 degrees, freeze-frame, no wonder it sounds familiar, it turns out to be the jet sound of the aircraft we used before!

Of course, the aircraft will not rise into the air by itself, but someone will "pilot", the other party has obviously discovered the drone, is hovering at the horizontal height of the top floor of the castle, about thirty meters away from the drone, wearing a set of black tights similar to a diving suit, looking at the figure is undoubtedly a woman, wearing a Monkey King toy mask on her face, but she is empty-handed, holding the handle of the aircraft, and does not carry a weapon.

"Do you want to her?" Ling Ge asked me, the other party doesn't have a weapon, but the drone has a weapon on it, and you can throw a trick pill bag at her!

"No, evacuate." I say.

"Where to retreat?" Ling Ge asked.

"The lair of the Adi Legion."

Originally, I wanted to play a trick to "set yourself on fire", but unexpectedly, the other party did not chase after her, and after the drone flew away, she flew into the castle tower, unloaded the aircraft, and walked down.

Since she didn't follow, Ling Ge didn't go far, went around in a circle, and flew to the sunken square, but the gate leading to the subway station at the bottom of the square was sealed by two roller shutters that seemed to be newly installed, the roller shutter door was very thick, like a special one, Ling Ge was a little annoyed, and today was very violent, please ask me again.

"Do you want to blow up the shutter door?"