As soon as he walked to the door, before Qi Dong could open the door, the door opened.

A figure flew out of it and hugged Qi Dong tightly.

"Brother, you scared me to death just now, are you okay?"

After Qi Lingyun came back, she and the fat man heard a sound coming from the first floor. The roar of the Heaven-Shattering Tiger and the sound of a heavy object hitting the wall.

Such a big movement scared Qi Lingyun and the fat man a lot.

Qi Lingyun was worried about her brother, and she couldn't help but go down to have a look several times, but she was dragged back by the fat man.

They have been guarding behind the door, and when they saw Qi Dong coming back from the door mirror, Qi Lingyun's heart finally let go, and as soon as the door was opened, they pounced on Qi Dong.

"Don't worry, don't you see I'm back. Let's go into the house, don't invite kobolds later. Qi Dong smiled.

"Brother, the injuries on your body are not light, why don't you use the evolution stone?"

"It's okay, I used one just now, but the injury is too serious and it hasn't healed yet. Hehe, if you want me to hurry up, make me something to eat, and use the meat of this Swift Sword Tiger I brought back. Its flesh is rich in nutrients and energy, and it can also play the role of an evolution stone. We have been eating tiger meat for the past few days, which can improve a lot of physique. ”

"Okay, I'll do it, brother, wait a minute." When Qi Lingyun heard this, he immediately nodded.

The fat man helped Qi Lingyun drag Xun Jianhu into the kitchen, came out and sighed: "Boss, you are really powerful." What is that big guy, is it also from another world? It's very similar to the saber-toothed tiger that has perished on Earth. The noise you made during the battle just now was so loud that I guess all the residents below the sixth floor heard it. ”

"That's the high-level Warcraft Swift Sword Tiger of the Warcraft Plane, with your current strength, you will definitely be killed in seconds when you encounter it, and you can't run."

"Hehe, isn't there still a boss. With the boss here, no matter how powerful that thing is, it doesn't want to be the meat in our stomachs. The fat man squeezed his eyes, he didn't ask why his boss knew so much, he knew what to ask and what not to ask. Qi Dong has left a deep impression on him in the past two days, and in his heart, his boss is simply omnipotent and omniscient.

After a while, Qi Lingyun cooked the meal, and after eating the meat of the Swift Sword Tiger, the unhealed injuries on Qi Dong's body were completely recovered.

After eating, Qi Dong went back to his room to rest for a while.

"Okay, the state has been adjusted to the best, you can try to break through!"

Qi Dongpan sat down, took out the evolution stone of the Swift Sword Tiger, looked at it for a while, and threw it into his mouth.

The evolution stone melts in the mouth, but after the evolution stone is dissolved, it is not directly absorbed by Qi Dong's body like the previous times, because his physique has reached five times the physique, which is the limit of the human body, and he can no longer directly absorb the evolution stone to strengthen the body.

The juice formed by the dissolution of the evolution stone was constantly circulating in Qi Dong's body, and after a while, Qi Dong felt that his whole body was comfortable, his mind was refreshed, and his body was floating, and he actually had a fluttering feeling.

After a while, this comfortable feeling gradually faded. Then, the whole body began to swell and ache again, and the qi and blood surged for a while. Qi Dong, who was in pain, almost fainted.

"Don't faint, or you'll fail!"

Qi Dongqiang held back the pain, and after a few minutes, he felt a sharp pain in his abdomen, as if the pain in his whole body had been transferred to his abdomen.

"Moment of truth!"

He felt as if a whirlpool appeared in his abdomen, and the whirlpool spun faster and faster, and when it reached a certain speed, it stopped accelerating.

"Now that it's at the limit speed, it's time to form a 'Neidan', why don't you form a Dan? It's not good, this evolution stone doesn't have enough energy, it's almost! Thinking of this, Qi Dong quickly took out all the remaining four evolution stones, and without hesitation, threw them into his mouth together.

As the four evolution stones poured into the body, merging into the vortex in the abdomen, the vortex's rotation speed, which had already begun to slow down, suddenly increased frantically again.

Suddenly, with a "bang", Qi Dong felt a loud bang in his body.

"It worked!"

Qi Dong closed his eyes and felt carefully. He felt his abdomen, where the whirlpool had just formed, appear as an oval, black object the size of a fingernail. It is the evolution stone of human beings, which is also called "Neidan" by human beings! In his mind, the shape of "Neidan" was clearly reflected. That "Neidan" constantly emitted a trace of airflow, which merged into Qi Dong's body.

Qi Dong stood up and stretched his body, and his whole body crackled.

The muscles and bones of his whole body, and the internal organs seemed to be much tighter and stronger, and at the same time, his ears were extremely clear, and he was immediately alert when any wind and grass came out, comparable to a mouse in action.

"Eight times the physique! Sure enough, it is worthy of the evolution stone of the Swift Sword Tiger, and as soon as I broke through to the zero level of the Black Iron Level, I reached eight times the physique! Now I can almost easily torture and kill ordinary kobolds of the Black Iron Zero Order, even if I encounter an elite kobold of the Black Iron First Order, I have the power to fight! ”

The physique of a human being at the zero order of black iron is six to nine times the physique, and the physique of the first order of black iron is ten to nineteen times the physique. People who have just broken through to the zero level of black iron are generally six times the physique, and Qi Dong has eight times the physique just after breaking through, so he can't help but be excited!

After the "Neidan" is formed in the body, the Neidan will generate "qi" in the body.

If you have "energy", you will be able to use "combat skills", similar to the skills in the game.

"I've finally reached the Black Iron Zero Order, and before the second Red Mist descends, as long as I don't provoke those Black Iron Third Order existences, there won't be any problems. With my experience and the combat skills I learned in my previous life, even if I can't beat the alien race of the second order of black iron, I can still run away! ”

Forming an "Inner Dan" in the body and successfully breaking through to the Black Iron Zero Rank is the most difficult step. At the beginning of the last days, most people were stuck in this step. Once the "Inner Dan" is generated, the subsequent evolution will be much smoother, as long as you continue to devour the evolution stones of the alien race, you can increase the level, all the way to the ninth order of black iron, there is almost no bottleneck.

"By the way, I killed the Swift Sword Tiger before to get the 'Combat Skill Inheritance Ball' that can be used, although I have mastered a lot of combat skills in my previous life, but the skills are not overwhelming, let me take a look at what combat skills are in this inheritance ball. If it's useless to yourself, leave it to your sister or the fat man. ”

Qi Dong took out the Combat Skill Inheritance Ball, calmed down, and attracted the trace of "qi" that had just been generated in his body, and teleported it to the hand that touched the Inheritance Ball. When Qi Li came into contact with the Inheritance Ball, a stream of information immediately appeared in his mind.

Skill Name: Eye of Exploration

Combat Skill Quality: Low-level combat skills

Combat skill introduction: Reconnaissance skills, after using the Eye of Exploration, you can detect the opponent's racial intelligence and strength

"Great! Unexpectedly, it turned out to be a special type of skill! With this combat skill, it will be much more convenient in the future. If you encounter a high-level alien race, you can avoid or prepare in advance. ”

Combat skills are divided into ordinary combat skills and special combat skills. Ordinary combat skills, after being learned, can be dictated to others after they are fully comprehended. Special combat skills are skills with various special effects, such as the "Eye of Exploration" that Qi Dong just hit, such skills usually cannot be taught to others, and can only be learned through the "Combat Skill Inheritance Ball".

Special skills are rare, but not all of them are useful. Qi Dong had a special combat skill in his last life, "the captive of food", who could distinguish the ingredients used and the production method by eating only one bite of food.

The special skill of detection is one of the most practical skills of special combat skills. After all, this skill can help you gain information about the enemy, and it can be very useful in battle.

After learning that it was a probing skill, Qi Dong did not hesitate, "Use!" ”

As he finished silently, the crystal ball suddenly shattered, and at the same time, there was an additional method of using combat skills in his mind.

After learning the Eye of Exploration, Qi Dong used it on himself first.

"Activate the Eye of Exploration!"

Then Qi Dong's message came to his mind.

Race: Terran

Strength: Black Iron Zero Order

Evaluation: Humans with mediocre strength have a weak physique, but they have extremely high potential and a strong ability to learn. Note: This skill can only be used on aliens and oneself, not on other humans. "Sure enough, it's a low-level combat skill, and it can only show such a little information." Qi Dong was not disappointed, this result was obviously expected by him, "But being able to know the strength and race of the other party is still a great help." ”