Chu Feng walked over gently. After he approached the iron rune, suddenly, the iron Rune in front of him emitted a burst of strange light.

Then, the iron Rune was integrated into Chu Feng's body.

"You have obtained the primary iron rune, unlock new special abilities!"

Chu Feng opened his personal panel and found that he had more [primary iron control] skills in his special abilities.

[primary iron Defense]: you can control the strength of surrounding iron attributes, increase the digging speed by 50%, and increase the maximum number of times to use a hoe every day to 12 times.

Chu Feng's mind moved, and the hoe flew into the air and suspended.

This is the power of iron runes.

He felt that he could use the power of runes to control the iron nearby.

"This ability is good. If it can increase the number of times I use my hoe, I can explore more places."

Chu Feng paid more attention to the remaining use times of the hoe.

In this way, in the copy of the cave world, the area that everyone can explore every day is not fixed.

If you can collect more iron runes, you can get more hoes to use, so as to explore more space.

And.

The power of using iron runes is not consumed. Chu Feng can be used without limit.

He directly controls the hoe and floats behind him, thus freeing his right hand!

When entering the cave world, the super pupil needs to use both hands to hold the torch and hoe respectively. It is very inconvenient. If they encounter the attack of monsters, they can't use other heaven secrets.

This is equivalent to the grotto world controlling the hands of the super pupil in a disguised form, so as not to let them easily give full play to the power of the secret treasures of the heavens.

If one hand is free, Chu Feng can use the secret treasures of the heavens!

He took out Hou Yi's bow for a rainy day.

The nine day leader's robe has also been worn on the body and can resist most physical damage.

After obtaining the iron rune, Chu Feng saw three directions in front of him. He could continue to dig.

The prompt continues to appear:

"Don't go ahead. There's a celestial spirit that will capture your soul."

"On the left, there is a fluorescent grass path. There is plenty of light without torches, but there is no harvest."

"On the right, you can get food and water for a day, but you need to deal with shadow spiders that may appear at any time."

Chu Feng thought for a moment and walked to the right.

With the iron rune, he has obtained some mysterious powers in the cave world. With the Hou Yi bow in his right hand, he has no reason to counselle a spider.

In contrast, although the road on the left is not dangerous, there is no harvest, and an opportunity to hoe the earth is wasted. In Chu Feng's view, the choices and opportunities in the early stage of the cave world are also very important, with the effect of snowballing.

Therefore, Chu Feng chose to dig to the right.

With the blessing of iron rune, Chu Feng felt that the hoe in his hand became fierce, and the speed of digging was even faster!

In only ten minutes, Chu Feng had come to the next room.

"Warning! The shadow spider is twenty meters away from you. Please be careful!"

"Ten meters left!"

"It's on your head, ready to pounce on you!"

Chu Feng suddenly raised the torch in one fell swoop. He saw a huge shadow spider the size of a basketball. It was dark all over, covered with terrible fluff, exposed purple sharp fangs, hidden in the shadow, and prepared to launch a fatal blow towards Chu Feng!

In the face of this monster, Chu Feng was not in the slightest panic. He saw that the shadow spider was just good at concealment, just an ordinary monster. At present, he controlled the iron rune, and the hoe behind him suddenly flew out from behind him, nailing the shadow spider to the wall in an instant!

Using Hou Yi's bow will also waste pupil force. For Chu Feng, the cave world may not have time to use Nu Wa's visualization map for recovery, so he must cherish the use of every drop of pupil force next.

After solving the shadow spider, Chu Feng soon found a wooden box not far away. When he opened it, it turned out to be several packets of beef jerky and a bottle of Pepsi.

"Tut Tut, I didn't expect to drink fat house happy water in the cave world!"

Chu Feng felt that this copy became interesting.

The moment he opened the Pepsi and opened the bottle cap, the sound of happy bubbles gushed out of the bottle cap. After drinking it, the whole person became refreshed.

"Tip: after drinking Pepsi, you will no longer feel thirsty within a day, and your mental strength will be improved, which can speed up the recovery of pupil strength."

"Happy water still has this effect?"

Chu Feng's heart jumped. He immediately felt that he was a little unhappy after drinking. He wasted such a good thing!

Fortunately, this mouthful is only stuffy for one-third, and two-thirds can be drunk next.

Chu Feng had just finished his bread, and now he was not very hungry. He was thinking about how to bring these foods more conveniently. Suddenly he thought that he had iron runes, and these treasure boxes seemed to be iron products.

His mind moved, and the treasure chest immediately floated.

Chu Feng threw the bread and mineral water in his pocket and the remaining half bottle of Pepsi into the iron box, saving him the trouble of holding it with his own hands.

Looking around again, there are five intersections ahead. Here, Chu Feng also found that the rooms in the cave world have become larger, the connected caves have become more, and the map has become more complex.

However, this room is not very lucky. There are two channels that will encounter powerful monsters, and the prizes are general. Chu Feng is not interested.

One of them has no harvest, and the other is food and water, but Chu Feng is no longer short of these things.

The last remaining cave can obtain a fire.

It takes ten minutes.

Chu Feng dug into the past again.

After adding the fire, Chu Feng added two fire.

The remaining time of his fire reached three days.

Looking up, the place within 30 meters was illuminated by fire.

Coupled with the golden Hou Yi bow in his hand, Chu Feng looks like a moving little sun from a distance, bright, dazzling and dazzling!

Chu Feng raided two caves and obtained a demon spear, food and water for a day.

Because the devil spear is an iron weapon, Chu Feng won't bother to wear it. In fact, his attack power is much worse than Hou Yi's bow. After understanding the power of primary weapons in the cave world, Chu Feng lost most interest in killing strange explosive equipment, and his runes are better.

He didn't encounter any valuable caves to explore, so he chose food. Anyway, there are not too many such things.

Chu Feng was hesitating where to attack. Just then, he saw the panel next to him and a message popped up——

"Is there a dragon super pupil whose coordinates are near (111, 50)? I want to exchange the redundant fire Rune for 100000 sky points. Does anyone change it?"