Wu Liao cowered and walked to the edge of the pit and slowly squatted down. After pricking up his ears and listening for a long time to make sure that there was nothing abnormal, he quietly poked his head out and carefully looked at the white balls.

"What the hell is going on, I can't just be smashed by these things, right?" Wu Liao couldn't help but touch the wound in the middle of his head, but his courage grew, after all, it was just a few balls that looked a bit like a work of art, so it shouldn't pose any actual threat.

So, he slid down the edge of the pit little by little. The dirt mixed with small stones splashed downward. There was only one meter left, Wu Liao spread his hand and jumped directly. Walking up to the ball, he tentatively reached out and touched the leftmost ball. The touch is actually warm, not the kind of cold as imagined, nor the hardness as imagined, but a little elastic. He increased the force in his hand, and only pushed it forward about three centimeters, and then there was a hard metal touch, and there was a cool air unique to metal.

He didn't even have time to study what these white balls were. The three balls of "Di, Di, Di" sounded rhythmically at the same time, and this change frightened Wu Liao to jump back. In this deserted town, there is a rare sound except for the sound of the wind.

The sound of "Di, Di, Di, Di, Di......" is getting denser and more frequent, and the sound of Didi Di seems to be connected in a straight line, similar to the death alarm sound from the hospital's ECG machine.

"Human activity area detected, hazard level: 2b, low hazard level, the system is about to start on its own, immediately carry out the second cleaning plan."

An icy metallic voice echoed through the pit.

Immediately, the outer layer of several balls of white substance began to dissolve, like a candle melting wax oil, and the viscous milky white liquid began to melt from the top, dissolving and flowing quickly, and in a blink of an eye, the white liquid matter had fallen off from the sphere. A puddle of white liquid formed on the ground that did not merge with the earth, but was around the sphere, as if it had been sucked in.

Wu Liao had been running back desperately as early as the beginning of the dissolution, and his sixth sense told him that these things were by no means harmless to humans and animals like candles, but were full of extreme unusualness and danger. He didn't have time to look behind him, and clumsily began to crawl down the way down, to the ground. It may be that you are overstressed, causing the gravel under your feet to fall constantly.

The orb that had shed its white outer layer revealed its true form, a pitch-black metal ball glowing with a metallic cold glow. The surface of the sphere is covered with lilac fine lines, which are arranged regularly on top of the metal ball.

With a few clicks, the metal ball began to change. The top was dented, a small crater appeared, and then it immediately re-coalesced and took on a shape. Let's call it the position of the head, forming a long metal strip covered with fine metal needles. The surrounding area also began to change, each concave and evolved into four separate metal strips. It's still changing, and it's gradually revealing its outline.

This is clearly a vicious dog made of machines! One-eyed is located at the top of the head, and a row of sharp and dense fangs looms in a cold light. Four stout and muscular metal limbs, all with razor-sharp claws that are unmistakably lethal.

It seemed to be adjusting its bodily functions, and its limbs shook rhythmically. The remaining two orbs are also in the same state, and move closer to the mechanical dog on the far left. The three mechanical dogs stood together, the rays of light emitted by the red one-eyed above their heads combined into a wall of red light, scanning the environment from top to bottom. The walls of light are gradually penetrating the pit and are spreading into the streets.

The frightened Wu Liao did not run far, he was hiding behind a building at this time, his heart was full of curiosity and fear at the same time, and he was still thinking about continuing to investigate the follow-up situation. Suddenly, a red light flashed in front of his eyes, penetrating his body and spreading directly to the back of another building. Although he didn't know what was going on, he roughly estimated that it was about thirty meters from the pit to the end of the red light.

Just as he poked his head out of the wall, the three mechanical dogs had already jumped into the air and jumped out of the pit. It seems that Wu Liao's position has been locked.

"Damn! What the hell is this! Wu Liao secretly scolded himself, casually took a big stone that had just come from the edge of the pit, threw the stone out, and smashed it on the body of the first mechanical dog, making a crisp sound of metal colliding. The first mechanical dog's action paused obviously, but it was not substantially affected, after all, a stone in front of steel, not worth mentioning.

Wu Liao was excited, hurriedly jumped out of the building with a dodge, and began to rush in the direction of the gas station. The clatter of the mechanical dog running on the ground behind him. It may be that the machine is still being debugged, and the mechanical dog's movements don't seem to be very coordinated, but the speed has clearly increased. He didn't even dare to turn his head back, for fear that a slow step would knock him to the ground and tear him to shreds with those sharp fangs. I can only run forward as hard as I can.

He slammed open the shattered glass door of the gas station and ran straight to his apartment. He lives in the office of a gas station convenience store. There was only an old wooden door left in the office, and he slammed it shut, leaning against it. In the cramped office, only his heavy wheezing and the pounding of his heart. He heard the strange sound of the previous plan, and he knew that these things were for his life, and at this time he couldn't think of any other way to escape, only hoping that the dilapidated wooden door would be able to withstand the attacks of these steel beasts as much as possible. He took a deep breath to force himself to calm down, and he quickly piled the desk he was using for shelter against the door, pressing it against the edge of the door.

"Looks like it's okay, these things haven't arrived yet." Wu Liao muttered to himself. Before the words fell, the wooden door was slammed by the mechanical dog. Wu Liao, who was on the edge of the desk, also clearly felt the impact, and his body was knocked backwards by a distance of one or two centimeters.

The impact became more and more coherent, the sound became more and more dense, and Wu Liao even felt that his internal organs were slightly displaced in the impact. Cracks began to appear on the wooden doors, which became more pronounced with each violent impact. The wooden door finally couldn't withstand the more violent impact, and the wooden door was knocked out of a hole, and a metal dog's head was stuck in the hole, which seemed to have been smashed in by the last impact. Its head was shaking violently from side to side, its red one-eyed eyes were always staring at Wu Liao, its mouth full of fangs was wide open, and its throat was making a heavy low sound.