The ice crystals that appeared on the wall next to the crystal library were very peculiar, because the shape of these ice crystals was very regular, and they were the most perfect hexagonal ice crystals in nature, this situation Lin Feng had never seen, but the energy emitted from the ice crystals made Lin Feng shocked.

The energy coming out of the ice crystals on the walls is very similar to the energy around the Nanqi base, perhaps very close to the energy emitted by the land of the northern country.

"What's going on, is there something behind this wall?"

Lin Feng was surprised by this situation, because he knew that this would never be just an ordinary phenomenon, in order to find out, Lin Feng used the active skill of the Demon Wolf Technique.

Using the active skill of the Demon Wolf Technique, he saw through this wall made of lead, behind this wall was a large space, and a large amount of cold air blocked Lin Feng's line of sight like mist, but Lin Feng vaguely saw that behind the heavy cold air, a large weapon like a satellite laser cannon stood on the ground.

The power of this weapon can be detected by the fluctuations in energy, but it is also difficult to obtain this weapon.

There is a heavy cold behind the wall, not to mention the weight of the weapon, just the energy of the cold can make everyone in the Nanqi base be frozen, if the wall is broken rashly, the cold will definitely leak suddenly, and when the weapon is not obtained, there will be casualties among the personnel.

"Elder Sima, you bring some of your people to the arsenal to get weapons to support Chief Qian, and I'll go later."

Lin Feng arranged the task with Elder Sima who was waiting outside, and then Lin Feng closed the door of the crystal library from the inside, and suddenly Lin Feng felt that the energy pressure around him was amazingly powerful, if it weren't for Lin Feng being a ninth-level cultivator, this energy pressure would definitely cause Lin Feng's blood vessels all over his body to burst and die.

In the final analysis, this energy pressure was a side effect of the Demon Wolf Technique on Lin Feng's body, and the passive skill of the Demon Wolf Technique was to feel the energy level and fluctuation intensity around him.

"Why can't this passive skill be turned off? The Demon Wolf Technique is not perfect? ”

Lin Feng began to mumble in his heart, for the first time, he felt that there was something bad about the Demon Wolf Technique. But thinking of the Demon Wolf Technique, Lin Feng felt that the problem of cold air behind the wall could be solved.

The silver wolf was released from the apocalyptic table, and he had not seen it for a few days, and the cold on the silver wolf's body was thicker, his fur was brighter, and even his body had become larger.

But the fact that the silver wolf is a foodie can't be changed, after releasing it, the silver wolf saw the crystals all over the room, and saliva flowed everywhere, fortunately, Lin Feng's eyes quickly stopped the silver wolf's action, otherwise with the current body shape and appetite of the silver wolf, most of these crystals could be eaten by him.

"Big stupid wolf, if you don't obey, I'll lock you up again, and I won't give you snacks!"

Lin Feng's trick of threatening the silver wolf with snacks was very effective, and he couldn't help it, seeing the silver wolf drooping his ears looked like a dog, but appearance can't determine strength, and the silver wolf's current strength is on par with Lin Feng.

"Little wolf, look at the cold behind this wall, can you find a way to clear it, if you can clean it up, I will give you double the dog food and canned dog food."

Lin Feng seemed to really raise the silver wolf as a dog, feeding it dog food and canned dog food, but the silver wolf liked it very much, hearing that there was double the grain and canned food, the silver wolf suddenly seemed to be possessed by Wolverine, and the fur on his whole body stood up, and then the silver wolf put away the cold on his body, and then, the silver wolf sneezed.

Lin Feng was really frightened by this sneeze, he thought that the silver wolf could use some amazing power, but he didn't expect it to be just a sneeze, at this time Lin Feng was already disappointed in the silver wolf.

"Boom"!!

With a loud bang, the wall in front of the silver wolf suddenly collapsed, and a large amount of cold air seeped out from the wall, Lin Feng saw that things were not good, and hurriedly used his energy to resist the cold air.

But before the cold air could invade Lin Feng's body, the heavy cold air disappeared.

Then Lin Feng saw that the silver wolf's belly was much bigger, and then a full burp proved that these cold qi had been swallowed by the silver wolf.

Before he could marvel at the silver wolf's ability, Lin Feng's realization was shocked by the scene behind the wall.

Behind the collapsed wall was a huge space, this space was completely sealed, a huge weapon that looked like a satellite laser cannon was erected on the ground, the weapon was wrapped in ice all over, and there were many lines and pipes connecting to the ground, which looked like it was built directly on the ground.

Lin Feng reactivated the active skill of the Demon Wolf Technique, and when Lin Feng saw through the ground, he was already speechless in surprise.

The bottom of this weapon is directly deep into the ground, and at the bottom of the pipe is a huge energy pool, in which the incalculable cold air gathers, and through the connection of the land, the cold air in the energy pool penetrates from the land to the outside, while the energy of the energy pool never decreases.

"Could it be that the extremely low temperature in the northern country has something to do with this energy pool? So how exactly did this pool of energy come about, where so much energy can be gathered here? ”

This problem is very serious, since Lin Feng came to the Nanqi base, it has not been two days, and so many secrets have been discovered, and Lin Feng believes that the Nanqi base will definitely not be just a monitoring station and a contact station, there are definitely many unknown secrets here.

At present, the first task is to repel the corpse tide, and then go to investigate the secrets of the Nanqi base, now that this huge weapon and energy pool has been discovered, it seems that the corpse tide will continue to appear, before reaching the death cycle, all the zombies must be eliminated as soon as possible.

The walls of the crystal library are made of lead, and the walls of the space behind the walls are indeed ordinary stone walls, now that the energy of the crystal library has leaked, it is not interesting to continue to stay here, and no one will take this weapon away, wait until the corpse tide is repelled and then find Chief Qian and Elder Sima to study them carefully, what to do with this weapon.

Returning the silver wolf to the end of the world, he took out a large bag of dog food from the supermarket and gave it to the silver wolf, and then Lin Feng also rushed to the front of the base, ready to command the battlefield and meet the tide of corpses.

When Lin Feng arrived at the gate of the base, there was already fire outside.

I have to say that the power of the super-heavy laser cannon is very remarkable, especially in a place with a very low temperature like the northern country, and the effect has doubled when it is used.

Zombies are stiff and slow because of the cold, but super heavy laser cannons and heavy laser cannons are high-calorie weapons, when these laser beams hit the already cold zombies, the zombies will decompose due to sudden cold and heat, coupled with the explosion effect of the laser, the zombies are dead and there is no ash left.

Lin Feng didn't find that there were high-level zombies in the zombie group, the highest level was only level two, why was there such a huge number of corpses at this level?

Just as Lin Feng was thinking, a red light flashed in the distance, and then the zombies and laser cannons in the front row were destroyed a lot.

"Advanced mutants?"

Lin Feng knew it was time for him to play. (To be continued.) )