I can't imagine that the evidence used to claim the prize is so easy to find, it's so cheap, it's a little strange, this place should also belong to the warehouse Why is there no one guarding it?

After thinking about it for a while, he couldn't figure it out, so Zeng Jun decided not to think about it so much and go to the basement to have a look first. **

Illuminated by the equipment, he walked down the long staircase, and a light gradually came out from below, and from a distance, the faint light came through the window of a room in the basement.

"You wait for me to sneak in and take a look, I always feel that this place is a little abnormal, and there is not even a guard in the place where the strengthened corpses are stored, which is a bit abnormal." When he was about to enter the basement, Zero stopped everyone from moving forward, and turned on the sneaking cat tiptoed in.

After a while, news came from Zero: "I figured it out, the room with light is a conference room, and eight genuine bosses are meeting inside, two of them are at the spirit level, and the presiding officer is the dean of this academy, the ** division of the ground level undead, and the guards outside the conference room are all mutant elites or quasi-boss level, if we rush in just now, we will die." ”

Receiving the news sent back by Zero, everyone gasped together, t*** I don't know if they came at the right time or if this is also part of the plot setting, fortunately, Zero's brain suddenly flashed in time to stop everyone from continuing to move forward and sneaking in alone, otherwise once the guards outside are alarmed, even if the bosses inside don't come out, just a nest of mutant elites and quasi-bosses outside is enough for the eight of them to drink a pot.

"Go and see if there is a raw material warehouse or something below, the ground buildings have been searched and have not found these things, they can't use up all the raw materials for potion preparation, the warehouse should be underground, go and find out if there is any gunpowder or something that can be blasted." Zeng Jun said to Zero in the team channel.

"I'm looking for it, the defense below is denser than on the ground, and it is estimated that this is the core of the entire research institute." Zero replied.

After a few minutes?? Zero: "T*** is a big deal, a movable black corpse was found here." ”

Bing Lan: "Avoid him, be careful not to be discovered by the other party." ”

Zero: "Although this black corpse can move, it doesn't seem to be able to think, and the bosses in the conference room are probably summarizing this meeting, and I will share my perspective with you." ”

The next moment, Zero shared his current perspective in the team channel, the basement was very dark, and the equipment luster of Zero in the stealth state was hidden, otherwise a ball of light moving around would be directly equivalent to revealing his body.

The visibility in the basement is very low, and there are no vision-enhancing skills such as Eagle Eye at Zero, so you can only see things within five yards of the surrounding area, but such an environment is very beneficial for the Assassins to hide, and some places that the Assassins can't go in the bright light are not a problem at all in such a dark environment.

After a while, Zero Degree stopped in front of the two pitch-black gates, the doors were closed, and some colorful powders were sprinkled on the ground, which had been mixed together under the trampling of footsteps, but they could still be distinguished as some red, yellow, blue, green and other colored powders, needless to say, this place must be the warehouse they were looking for.

The gate was closed, and with a quasi-boss-level sword-wielding guard on each side of the gate, there was no way for Zero to open the door and sneak in.

It seems that there is only a matter of waiting, and when these undead need to receive materials, they open the door and quietly blend in. Zero Degree waited patiently in the void outside the warehouse door, and waited for nearly 30 minutes, but there was still no movement in the direction of the door.

I can't wait anymore, the gang of bigwigs in the conference room may come out of the meeting at any time, and if someone returns to the ground floor through the aisle, Zeng Jun and they will definitely have nowhere to hide. Zero quietly retreated away from the warehouse door and searched closely, but disappointedly didn't find any windows to sneak into.

In the end, Zero decided to take the risk, sneaking into a nearby room and finding a black knife for the undead to return to about ten yards away from the warehouse gate, throwing the knife in his hand towards the two black doors.

"Dangchang!" With a bang, the black knife slammed into the door and fell to the ground.

The two guards by the door immediately realized, holding the knife in both hands and looking around cautiously, did not find anything abnormal, one of the guards bent down and picked up the single knife on the ground and looked at it, probably saw the mark on it so he scolded loudly, saying that the undead language was completely incomprehensible, but the words of scolding people in the world are all the same, and you can guess one or two by the tone of the speaker.

After cursing for a while, the door of the warehouse creaked open from the inside, and a head wearing a black helmet stuck out of it to ask something, and then took the knife from the guard's hand and looked at it.

Taking advantage of this opportunity, Zero quickly turned on the Shadow Attack + Wind Step skill to increase the speed to the extreme and rushed inside. The three people at the door only felt a gust of wind blowing over their faces, but when they searched left and right, they found nothing.

It can be seen from the video transmitted from Zero Degree that this is a huge warehouse, and the goods in it are neatly stacked on the shelves, and Zero Degree carefully rummaged inside, almost all the goods were searched and no explosives such as gunpowder were found, but a large amount of saltpeter and sulfur were found in the warehouse, which were used to dispose of corpses to prevent decay, so the stock in this undead warehouse was very huge. In addition, there is some black fire oil in the warehouse. Three raw materials have been found for the manufacture of earth explosives, and one raw material for charcoal is still missing.

"Can you get all that saltpeter and brimstone and a small amount of black fire oil out of here?" Zeng Jun asked in the team channel.

As long as you can get these things, the charcoal matter is easy to solve, there is a boiler room in the building on the ground floor where a large amount of raw coal is stored, which is used by these undead to burn the boiler to heat the liquid that soaked the corpses, and it is the same if there is no charcoal to replace these raw coals, as long as the proportion of black fire oil is increased, it can be successfully detonated.

"The warehouse door is closed, and it can't be done unless you can find another way out, and the number of these things is too large to be transported at one time, and the Assassin's weight is limited, and the surname can't carry much at a time." Zero said in the team channel.

"Find a hidden corner and dig a hole out." Zeng Jun said.

Zero: "Brother Migrant Worker is mighty, but it seems that there is only one way." ”

"Let's go, let's not stay here, it's too easy to expose the target, go up there and prepare the coal first, find a secret place to hide by the way, and then make some explosives together to kill these girls after Zero gets things out." Zeng Jun said and turned around and walked to the ground.

Maybe God has eyes, Zero has not yet started to dig the tunnel, the door of the warehouse suddenly opened, a team of undead soldiers entered and took the approval to receive a batch of materials, Zero took the opportunity of the warehouse door to quickly load the package with saltpeter and sulfur that almost exceeded his own weight and brought two jars of black fire oil, mixed in the crowd in a sneaky state, piled things in a hidden corner, and continued to fish in troubled waters into the warehouse to continue to move.

There were a lot of undead people to collect, and more than 20 people moved back and forth a dozen times to transfer a large amount of materials to a laboratory in the basement, taking advantage of the opportunity for these undead to carry items, they also succeeded in getting enough saltpeter and sulfur, and then transported them to the ground floor in more than a dozen trips.

The eight of them started together, according to the recipe given by Zeng Jun, one saltpeter was mixed with two parts of sulfur and three parts of coal, and then half of the black fire oil was poured and mixed together, and some discarded large iron barrels containing potions were found to hold them, and they filled more than 20 large barrels. These soil explosives could not be packed into packages and taken to the basement, so they were all pushed by Zeng Jun and others to the warehouse where the black corpses were stored, and then the remaining earth explosives were packed in a small jar, so that all the zero degrees were quietly transported to the basement and stacked in the warehouse, near a hidden corner of the wall where saltpeter and sulfur were stored, the lid of the altar was opened, and the black fire oil was used to pour out all the way from the place where the explosives were stacked all the way out of the passage to the door of the Beishan Research Institute.

All this went on quietly, all the undead on the ground have been killed, and the undead on the ground, including those bosses, immediately entered the laboratory next door after the meeting, and all the energy was focused on the black corpse that could move but did not have complete consciousness and could not think, and no one was found to have planted a huge amount of earth explosives in this research institute.

All eight people withdrew from Beishan Academy, Zeng Jun looked at a viscous black line poured out of the black fire oil on the ground and said calmly: "Do it." ”

Ice Blue and Dream Butterfly Shadow waved their staffs in unison to condense a fireball and threw it towards the black line poured out of the black fire oil, and with a bang, the fire oil was ignited, and a tongue of fire quickly jumped into the Beishan Research Institute along the black trajectory on the ground.

A moment later, there was a loud rumbling sound of a series of explosions, and a huge black mushroom cloud rushed into the sky, and the magnificent black building of the Beishan Research Institute collapsed in the explosion, and the entire underground castle shook violently with this series of explosions.

At this time, the two pets of the nine-tailed spirit fox and the pirate rat suddenly lit up with a continuous upgrade light, Zeng Jun looked down and found that his experience bar was jumping up rapidly, and it was rapidly full in less than two seconds, and a golden light on his body sprinkled and rose by one level, and the experience bar was still rising without the slightest intention of stopping.

"Brush!" Upgraded two levels in a row, the level suddenly rose from level 86 to level 88, Yu Yang was even more exaggerated, Jiaohua was even more exaggerated, and it suddenly rose by five levels, and the level was directly upgraded from level 80 to level 85, and so many high-level bosses, quasi-bosses and mutant elite monsters in the basement of Beishan Academy were all counted on the heads of Zeng Jun and others after they were blown up.

ps: I recommend a good online game novel "Online Game: The Beauty of the Mountains".