The two plague demons were constantly studying the mixed toxins, and suddenly felt a wind blowing by. They did not react for a while. Even wise creatures were originally just low-intelligent creatures.

When they realized it, it was already a minute later. They were suddenly shocked and remembered where the wind came from in the deep cave. However, now they discovered that it was too late. Li Feng was smiling from behind and watched the two plague demon kings suddenly fall down and lying on the ground and sleeping soundly.

Just now, confirming that the two monsters were completely asleep, Li Feng immediately ran forward.

I searched a little from the space backpack and found the goal this time. I am my old friend, an unstable energy crystal.

When he took it out of his backpack, Li Feng happily wanted to kiss the thing. It had a large lethality and a wide range. Using multiple together was even more powerful and devastating.

Since I was weak before, I have been relying on this thing to kill powerful monsters. Until now, my damage can be higher than this thing. But its excellent applicability is still suitable for me. Today, it is still the protagonist of the whole audience.

Unstable energy crystal has always been one of the weapons that Azure Star doesn't want people to buy. It's too unstable and easy to explode, and it's not suitable to use it anywhere. Only Li Feng, the quiet space backpack is suitable for this thing. This is really a requirement that there are no waste props, only the level of fit.

Pushing these unstable energy crystals into the whole room, the laboratory of the Plague Demon King has become a terrifying explosives depot. Then extend the remaining ones as much as possible, which cannot be extended too far due to quantity reasons.

When he reached the limit, Li Feng searched for his backpack again to find a prop.

"Finished"

Take out a small prop from the backpack with a simple pointer on it.

This is the prop recommended by the Hunter Team I once knew to Li Feng. It was the time when I had a dinner at home in Mingli that I was recommended to Li Feng by Heiyi of the Black Venue Team.

This prop is a powerful time bomb, and hunters are often used. However, because it became a weapon of hunters, it was rejected by others, thinking that this is a prop that only evil people would use.

For hunters, time bombs can remove some gates well and can also destroy corpses and traces in certain places. Moreover, because hunters use guns, the threshold is low, and many people join halfway, and their combat effectiveness is generally not high. Attracting monsters when escaping and attacking through time bombs is also an option.

It is precisely because of this high applicability that Heiyi recommends to Li Feng and also has several. Anyway, there is room for backpacks to store, which is much more convenient than hunters who need to carry a large number of props.

After hearing this, Li Feng did not feel that this was too shameful, so he bought a batch of high-quality time bombs. These bombs were powerful, probably each of which was as harmful as the fire explosion technique released by the magician. In terms of lethality, it can be said to be the best batch. Of course, its expensive price also made Li Feng feel a little painful.

Because some electronic products are affected and cannot be used, Li Feng is not sure whether this thing can be used. Moreover, Li Feng is not sure whether this time bomb is technology or magical timekeeping. He only knows that this thing is powerful and expensive.

After trying to turn the pointer to two minutes, Li Feng's heart was a little nervous. Then the pointer began to rotate slowly, indicating that it was still usable.

Quickly place it in the unstable crystal that has just been placed, and at the same time start using the teleported spells yourself.

After seven or eight seconds, Li Feng left the place and returned to the ground. He was afraid that such a large-scale explosion would affect a lot, so he came to a very far place, for safety reasons.

It seems that the main invalid props are photography props, and other props are not greatly affected. Some watches cannot be used because many people now use their mobile phones to watch the time, and some watches have the function of taking photos, so the system has been banned.

If it was really impossible to use it at that time, Li Feng had other ways. There were some ordinary explosives and leads in his space backpack, extending them to a certain position. It was also a good way to ignite the leads by yourself and then use teleportation to escape.

Two minutes later, Li Feng felt the earth trembling, and a bad feeling flashed through his mind. He immediately flashed backwards and ran away frantically.

With a loud bang, the earth shook violently. There was no way to see the crystals placed directly above, which was quite a distance away. However, the earth in front of us was still affected. The rugged ground, which was originally composed of rocks, cracked many gaps. In front, the soil was shocked upwards, and then fell quietly.

Walking forward slowly, just now I flashed my place before, the dead trees there had already fallen to the ground. Many cracks appeared on the ground, just like scars on the ground.

Continue to move forward, the more you go, the scars get bigger, until you reach directly above the explosion area. From a distance, you can see a huge deep pit on the ground collapsed, and the surroundings are in a mess, with a large number of rock fragments distributed around you, as if they were bombed by a bomb.

It is worthy of being an unstable energy crystal, its power is so powerful. The power generated by superimposing so many uses is so huge.

In this way, the two plague demons should have completely disappeared.

With this feeling, Li Feng opened his character panel. Sure enough, the task of killing the Plague Demon King on it had become (4/5), and these two men successfully killed them.

Now that most of the mission has been completed, only the last plague demon king and the last leader are left without killing.

The smooth progress made Li Feng much easier, but the current clue has a fault and I don’t know what to do next.

Is there any other clue? Li Feng began to think.

But after thinking about it, it seems that the only suspicious place is the thing hidden by the residents and King Hall. If they were allowed to say it smoothly, there would be some useful clues.

"So now, go back to town and directly ask for the Eye of the Abyss"

Li Feng was a little hesitant and believed that doing so should be correct at the moment.

"But the power of the poison in the air seems to have become even bigger again?"

Seeing the decrease in blood bars, I could feel that it was much faster than in the early morning. Time is still a certain crisis, and letting the toxicity in the air increase, I could move less and less.

Because the exploration of underground space was too long, as Asahi went deep into the underground, it was now 2 o'clock in the afternoon of the day. Perhaps it was because he was too nervous just now that Li Feng, who was not afraid of the cold and cold, actually sweated a lot.

A gust of wind blew, making Li Feng feel a cooler.

"Huh~ It's still comfortable to wind, if it's not poisonous... wait!"

Li Feng, who was thinking, was suddenly stunned and then discovered something.

Think about it a little more and understand where to go next.
Chapter completed!