Ye Yang reached into his backpack and took out his configured "ginseng ginger black tea coffee". This thing can refresh and drink it in one mouthful. The effect is not as good as the professional "excitement drug" injection, but the materials are easy to obtain and wasted without use.

There are only three excitatory injections left in the backpack, but there are many bottles of this self-made drink.

A strong "ghost fog" emerged, covering Ye Yang and a skeleton cage.

He carefully kept away from the giant ants and walked along the rock wall towards another passage.

"Here... It's so big."

Inside is a huge storage room covering an area of more than 200 square meters, where all kinds of sundries are piled up.

There is food, including rice noodles, beans, animal bodies and human bodies.

There are materials, including a large number of boards and square stones.

There are weapons, various human handicrafts, long swords and martial arts knives, firearms, several large boxes of bullets, a small amount of grenades and incendiary bombs.

There are armor, including bulletproof vests, bulletproof helmets, aluminum alloy shields of retro crafts, etc.

There are medicines, all kinds of strange bottles and jars, different words, and even herbs piled up randomly.

One of the boxes can see many treasures, including gold rings, gold necklace, ruby, sapphire, topaz, all kinds of emeralds, some luminous fluorite like the Pearl of night, a few precious "energy nuclei", and a few live mirrors on the corner.

In addition, there are some miscellaneous things such as mobile phones, computers and batteries.

Ye Yang was stunned: "this is unreasonable."

Mutant giant ants store food, medicine, firearms and ammunition here. It's understandable, but what's the use of gold rings and necklaces? And the mirror, mobile phone, computer and battery. Can ants use it?

Some of the wooden boards in the corner are like sandalwood and some are like nanmu. They are of good quality. However, do giant ants living in underground caves need wood and building materials?

I couldn't figure it out for a while.

……

"Summon skeleton!!"

Ye Yang stretched out his hand and pointed to the human bodies used as food. The skin and flesh completely cracked, the bones squeezed out, and skeletons stood up.

"Put your equipment on."

Ye Yang asked them to put their bulletproof helmets and bulletproof vests on their bodies. Ye Yang changed the magazine and opened the safety bolt to get all kinds of guns.

Under Ye Yang's control, these skeletons went out, banged, attacked the compound eyes of giant ants, suppressed the giant ants pouring around, and the pangolin could slowly retreat this way.

"Brush a wave here first. If I can't hold it, I'll use the ghost fog to quietly return to the previous cave and hide in the sand..."

Ye Yang planned so.

When the pangolin retreated to the hole here, Ye Yang took out the yellow and green eyes of the giant bear in his left hand.

"Dark acid fog"!!

Large yellow green acid fog condenses and envelops in front of pangolin. If giant ants attack, they must be corroded by acid ants before they approach pangolins and are besieged by pangolins and skeletons.

In order to prevent them from moving forward, Ye Yang deliberately exposed a small channel in the acid fog area. When the giant ants saw the situation here, they screamed and rushed angrily.

On the ground, the bodies of giant ants fell.

Suddenly, a large number of giant ants retreated, arranged in order, surrounded this side, but did not move forward.

Ye Yang has a bad feeling.

I saw a group of giant ants with a particularly dark color and a particularly large body come out and spit out a strong black fog when they open their mouths.

"Poison gas?" Ye Yang had to guess so.

Fortunately, the black poison gas on the opposite side was blocked by the "dark acid fog", that is, it did not integrate into the "dark acid fog", nor could it float over, but formed a poison fog layer in front of the acid fog.

It can be said that the giant ants made a confused move.

"Good luck." Ye Yang pinched a cold sweat. However, the "dark acid fog" here continues to consume Ye Yang's spiritual power. If the spiritual power is exhausted and the acid fog dissipates, the poisonous fog will surely float over.

"Kill them!!"

Ye yangxinnian ordered that the muzzle of the skeletons were aimed at the giant ants spitting poison fog and shot into a sieve.

However, a stronger black fog floated out of the bodies of these special giant ants.

Ye Yang's face changed slightly. He quickly retreated into the "sundry cave" to hide, and then asked the skeleton to throw the combustion bottle.

The bodies of those "poisonous fog giant ants" were ignited, and the scattered poisonous fog was burning, but there was no explosion. Only the strong odor and a little black smoke filled the air and floated towards the cave that fell down before Ye Yang.

Ye Yang looked out and thought, "burning will consume a lot of oxygen. If the flame ignites other ant corpses, it will form a continuous fire... There will be no lack of oxygen here?"

Moreover, if the poisonous smoke fills the cave where he fell, and a little wind blows in, or something happens, will it diffuse to other places? If ye Yang wants to go back, can he go back to the cave before?

For a moment, he felt as if he had made a fool of himself.

Quickly control the "dark acid fog" to float forward and block the poisonous smoke and fog. When the space is occupied, the poisonous smoke will not float over. Under the accumulation, it will diffuse and cover the ant colony. Suddenly, many giant ants want to fall down. Others hurry to flee in all directions. In chaos, Ye Yang let the pangolin rush forward, roll up the burning ant corpses and sweep them to other crossings.

"Wasted a lot of mental energy..."

Ye Yang saw that the black smoke scattered in front of him, and more giant ants came from many passageways. He was not afraid of death. He took many skeletons and returned to the cave where he fell with guns and ammunition. Pangolins and skeletons guarded the exit of the cave.

Ye Yang injected himself with a precious stimulant injection.

"Dark acid fog!!"

A large yellow green fog filled the area in front of pangolins and skeletons. The coverage was larger than before, and the concentration of acid fog was higher than before. There was only a small narrow channel, and the fog was lighter, which could let giant ants see the state here and lead giant ants to attack here.

The effect is also remarkable. No matter which channel mouth the giant ant rushes out from, it will be shrouded in acid fog for the first time, and the shell will be eroded in a very short time. When they rush to the skeletons, they can cut them seriously with just one knife.

Although Ye Yang was very happy that his upgrade energy increased rapidly, he was dizzy after a while.

The wider the coverage and higher the concentration of "Youming acid fog", the greater the spiritual power consumed. As long as they are maintained so that they do not dissipate, they will continue to consume mental power.

However, sleep can restore mental strength.

In other words, it is feasible to keep the acid mist in a fixed position while sleeping.

"If you can't hold it and there is danger approaching, wake me up immediately." Ye Yang gave an order to the pangolin.

As for those skeletons... After Ye Yang falls asleep, they won't take the initiative to fight, but they can be ordered to stand where they are and be attacked by giant ants. Naturally, they will fight back with kitchen knives and steel pipes.

Ye Yang retreated into the cave and climbed onto the sand.

Look up at the gap where you fell.

"There should be no lack of oxygen here?"

As long as there is no open fire burning for a long time nearby, it is unlikely to lead to a large accumulation of carbon dioxide. It should be safe to sleep here.

"If you find a fire nearby, wake me up immediately." Ye Yang gave the pangolin an order, then closed his eyes and went to sleep.

I don't know how long I was awakened by a strong smell.

Open your eyes and it's quiet around.

The dark acid fog is still shrouded outside, but you can't see giant ants crawling out of each passage, and all kinds of ant corpses are scattered in the outside cave.

"Fortunately, they have no outstanding individual strength."

Before Ye Yang fell asleep, he was most worried that one or two rapidly mutated giant ants would emerge from those giant ants. Like a cat girl, it was possible to quickly pass through the acid fog area, break the skeleton, and even threaten Ye Yang's safety.

However, there was no such giant ant.

Ye Yang sighed a little relieved and glanced at the system menu.

"LV3's corpse is resurrected, and Lv2's skill proficiency in summoning skeletons is full. It's a little short of upgrading energy before I can be promoted to lv6's necromancer level..."

He dispelled the "dark acid fog" to avoid the continuous waste of mental power. While taking out the food and eating slowly, he asked the pangolin to cut open the bodies of the giant ants with its tongue.

Some special mutant ants can find "energy crystal nucleus" in their bodies, and they don't know what attribute it is, so Ye Yang put it away first.

"So many passageways... Which way should I go?"

Ye Yang moistened his fingers with water and put them at the entrance of each channel. He felt that there seemed to be a slight cool wind flowing in a certain direction, which was suspected to be the exit. Strangely, there was a strange sound in front of me.

"The air flows. If you go this way, you should be able to get out of the giant ant nest and return to the ground?"

Shrouded in ghosts and fog, Ye Yang found something wrong before he went far.

It was slanting down here, and there were huge ants in front of it, forming a square array, as if guarding something.

On both sides of the passage, there are bright luminous beads. At the end more than ten meters away, there is a huge metal door. On both sides of the door, there are strange giant ants and human monsters with ant heads standing upright. The door leaves did not close well, and there was a sad human scream coming out constantly, which sounded very painful.