And half of the two-kilometer path coincides with the road Qi Lin came from before.

As an old-fashioned concept of urban function division, the distance between the general school and the residential area is not too far, and Qi Lin had cooked mushroom soup in the communication room of the high school affiliated to this university before, and the distance of three streets from this high school is the university.

Although there are chemical laboratories in high schools, because they are mainly for teaching purposes, those prohibited chemicals are certainly not as good as the laboratories prepared for professors and graduate students in universities, both in terms of types and quantities.

And if the yield of explosives is too small, for the memory armor of the Red Dragon Type 6, it can only be regarded as an itch.

Qi Lin walked down the street, on both sides were the wreckage of some vehicles, these were the most common means of transportation in the old times, there were not many in the shelter, even in the rich area, the stock of cars was very small, one was that gasoline was too precious, and the other was that there was no road for cars to run.

The interconnected passages between the Vaults, apart from the dark and poisonous tunnels, are the only means of transportation that resembles the subway, which runs between the Vaults - except that the entire Vault is in a state of chaos due to the rampant rebels in Vault 188 next door, and the underground railcar of Vault 187 has not returned for a long time.

The divisions of the underground shelter are like a huge chessboard, and the shelters are distributed in the vast underground world like chess pieces, and the passages connecting the shelters are the thin lines between the chess pieces.

And these thin threads weave a large net of the entire underground human world.

Vault 187, where Qi Lin is located, is right on the edge of the Great Net, and the only link to the central area of the Great Net is Vault 188, which is in the midst of a rebellion.

If the rebellion is not quelled, the material crisis will also spread to them.

However, these are all things outside the game, and as far as the current situation is concerned, the first thing Qi Lin has to think about is if he survives this survival contest and becomes the final winner.

If you lose, you will lose everything, and if you win, you will have two E-class mutant serums, and a huge prize of up to 200,000 points.

Ahead was another crossroads, and a zombie with broken legs was lying in the middle of the road, the claws of two bony arms scraping in vain against the cracked asphalt.

The body decay of the zombie is not as serious as that of the lowest-level carrion, and even the shoulders and elbows have a layer of black-brown cuticles like blood scabs, and the body is thin, but the remaining half of the thighs are a little abnormally thick - this is a swift zombie, a kind of high-level zombie, fast, flexible attack, although there is no autonomous consciousness, but there are some simple attack routines, for ordinary players, it is a monster that is quite tricky.

In addition to being able to run quickly on flat ground, through the claws that have evolved from the ends of their limbs, the Swift Zombie can also "fly up the wall" and attack its prey from some unusual angles.

Qi Lin had seen the information about this zombie in the brain system, and quickly went through it again in his mind.

…… Wrong!

If swift zombies can use their claws to climb on the wall, even if their legs are broken, with the claws on their hands, swift zombies can also climb fast, and they shouldn't be unable to move!

Qi Lin was immediately a little alert, and hid behind the wreckage of a small car, and took out his binoculars.

Sure enough, in the telescope, it can be clearly seen that this swift zombie not only had his legs cut off, but also nailed to death on the road with a finger-thick steel nail at the broken leg, no wonder this zombie could only struggle in vain.

This is a trap, but it is not a trap to use against the player.

Many mutant creatures feed on zombies, and swift zombies with little carrion are naturally a rare meal in their eyes, and mutated creatures that use live zombies as bait, struggling movements and cries are easier to forage foraging.

Then, the hunter player hiding in the shadows can take advantage of the mutated creatures that he has attracted to eat, and suddenly strike and give the hooked prey a thunderous blow -

It's just that now the rules of the game have changed, and although Qi Lin doesn't know if he was lurking nearby when he set the trap, if a player "takes the bait", the other party will definitely not mind killing him too.

If you want to bypass this intersection, then you have to go around in a big circle, Qi Lin thought about it for a while, and decided to go through this intersection.

Of course, Qi Lin would not be stupid enough to walk directly in the middle of the main road, but clinged to the buildings on both sides of the street, moving in the shadows little by little, because he was wearing a melange cloak made of sacks, rags and gray cement slurry, Qi Lin clinging to the wall seemed to people from afar, like a pile of garbage that could be seen everywhere in the abandoned city, and he would not attract attention at all.

As he moved, Qi Lin observed the windows and commanding heights of the surrounding buildings, and what he needed to look for was the special reflection unique to optical scopes - in this case, the sniper was the greatest threat to Qi Lin.

Although Qi Lin was only an accurate shooter in the old days, not a real sniper, he had also learned sniper courses, and according to the preferences of ordinary snipers, as well as his experience accumulated in urban street battles, Qi Lin could easily find those hidden sniper points.

Sure enough, when Qi Lin had just moved around the corner of the intersection, a metallic luster flashed in a window of a small five-story building opposite-

Qi Lin didn't think about it, and immediately rolled on the spot, and with a "grabbing" sound, a crossbow arrow more than thirty centimeters long was nailed to the wall behind him.

Qi Lin's movements immediately alarmed the zombie in the middle of the road, and as soon as the zombie found a living person, he immediately began to roar, and the range of twisting of his body began to become huge, but the steel nail was still fixed to the ground, unable to move.

Qi Lin glanced at the window where the crossbow bolt had been fired, the man had disappeared, but in the next few seconds, a second bolt could shoot out of any window in the small building at any time.

Qi Lin immediately retreated to the back of the corner, here is the blind spot of the small building's shooting, if you compare this intersection to a plane Cartesian coordinate system, take the center of the intersection where the zombie bait is located as the origin, the small building where the ambusher is located, located in the first quadrant close to the origin, the window of the small building faces the road on the X axis, the entire intersection, and most of the road located on the X axis, this is the range that the opponent can attack.

Qi Lin, on the other hand, had been going up along the Y-axis before, but now he was dodging in a place where the negative number of the Y-axis was close to the origin, clinging to the building in the "fourth quadrant" behind him.

In other words, if the other party wants to attack Qi Lin, they can either go from the small building where they are hiding on the road on the Y axis, or move to the building on the opposite side of the road on the Y axis.

And in the process of moving, the other party will inevitably be exposed to Qi Lin's field of vision.