Fantasy: The system takes me to refine the magic formula

Long Tian was a little surprised when he took the small alchemy stove. Under the lavender alchemy stove, the three bases in a triangular shape firmly fixed the main body above the alchemy stove, and some strange words were engraved on the inner wall of the alchemy stove!It made Long Tian a little strange. In Long Tian's understanding, alchemy is the process of matching spirit herbs according to the formula of the elixir, screening the essence through the high temperature of the flame, and finally fusing the essence of the herbs in equal proportions. But it is still very novel to depict the formation on the inner wall of this alchemy furnace!

"It seems that the alchemy skills of this patriarch of Yihe should be really bad, and he can't even control the essence of the elixir!"

"Hehe host, don't make sarcastic remarks! In the future, when you practice alchemy, you will know how difficult this step is!"

Long Tian ignored the system, picked up the last letter and read it. A few lines of words described Yihe's thoughts: "Young man, when you read this letter, you will be the successor of my Yihe! I, Yihe Too many obsessions in this life lead to the failure of the catastrophe when you cross the catastrophe. If you are a member of my Tianwu sect! After you get my mantle, you must do your best to help my Tianwu sect and not betray you! Good luck!"

"Heir? No secret method was left for me and you said I was an heir? And this is called Tianwu Sect? It seems that when Tianwu Academy was founded, it was not the name it is now!" Long Tian searched again in Yihe's yard. Circle, after nothing else, get out of here!
The moment Long Tian appeared, Dan Chenzi's nervous heart immediately relaxed. He could accept that Long Tian hadn't gained anything in the secret realm, but he couldn't accept that Long Tian unexpectedly disappeared in the secret realm of his sect!
Long Tian left the ruins of Yihe and began to follow the system's instructions to another place. The few beasts he encountered on the way were easily strangled by Long Tian!

"It's strange, since Long Tian appeared at Patriarch Yihe's place, why did he feel so calm, not at all happy and excited?"

"Junior Brother Yuan Kai, didn't you see that he is heading towards the abyss of the secret realm? Couldn't this guy feel the aura over there?"

"Brother Sect Leader, do you want to get Long Tian out? The abyss of the secret realm lies ahead! None of our disciples who entered the secret realm in the past came out of the abyss!"

"Junior Brother Dan Chen, don't worry, just take a look, I always feel that this little guy Long Tian has a big secret in him, maybe he can reveal the secret of the abyss by entering the secret realm this time!"

"Hey!" Dan Chenzi was very happy to see that his lover got the inheritance treasure of the older generation in the secret realm one second, but he rushed to the most terrifying and hard-to-survive place in the secret realm in the next second, and was immediately full of worry!

At this moment, Long Tian also knew that the direction he was heading in was not right. It did not belong to the basic elements of gold, wood, water, fire, and earth, but rather a dark element, but he always believed in the system. The system just told him that there was Long Tian over there. There is one thing that is needed now, so Long Tian must go there!

Along the way, Long Tian didn’t meet any of his companions, only all kinds of beasts. The beasts he encountered at the beginning were normal, but slowly the breath of the beasts gradually became darker, and even some Originally supposed to be golden, the red beasts turned into dark black!
Long Tian flew to the side of the abyss of the secret realm, and looked coldly at the bottom of the abyss where there seemed to be infinite dark energy surging upwards. He thought that the nearby ferocious beasts became dark because they were affected by this abyss!

"The host jumped down! Right below here, there is a big surprise! I didn't expect there to be such a magical thing in this secret realm!"

"You can call the system a big surprise, you have successfully aroused my curiosity!" Long Tian turned around and fell into the abyss without hesitation!

This action directly stared at Dan Chenzi and the others outside. They all thought that Long Tian felt the danger, so they observed for a while and then left. They didn't expect Long Tian to jump up and jump into the abyss!
"Xiaotian!" Dan Chenzi tried his best to wrap Longtian with spiritual power and rescue him while maintaining the stability of the secret realm. However, Dan Chenzi's spiritual energy was unable to resist near the abyss, and was directly absorbed into the abyss. !

"Dan Chenzi, control the secret realm! I can still feel Longtian's aura! Don't mess yourself up!" Bei Nian said!

When Dan Chenzi heard Bei Nian's words, he could only control the stability of the secret realm first!
At this moment, Long Tian has been falling freely. While falling, Jin Jiuye seems to have inspired something, frantically absorbing the dark energy around him, which makes Long Tian a little surprised and looking forward to it!
I don't know how long it took, Long Tian landed on the soft ground, and the surrounding cliffs were already pitch black!
"Host, follow the instructions of the system, walk forward one kilometer, and then you will find a shocking discovery 300 meters below the ground!"

"Oh!" Knowing that the system would not trick him, Long Tian flew one kilometer away in seconds, and then directly blasted the ground 300 meters away with his spiritual power!

When Long Tian saw what was in front of him, he finally knew what the big surprise the system was talking about!

A milky-white egg with a diameter of more than ten meters suddenly appeared in front of Longtian, and the dark elements were emitting around the egg, and it was the dark elements emitted by this egg that caused the entire abyss and the surrounding areas to They are all affected by it, and this egg seems to have faintly absorbed Longtian's spiritual energy!

"This egg..."

"It's the egg of the dark dragon! Host, this is a super monster! It is born at the ninth level! If you hatch this egg, this dark dragon will be your mount in the future! The dark dragon will be promoted to a holy beast in the future, and even Gods and beasts are not a problem!"