Su Chen couldn''t help but show it.


    With a wave of his big hand, the sky changed color, thunder rolled, and 81 strong thunder with a diameter of half a meter fell in the air.


    Directly triggered the mine crack state.


    Eighty one divine mines split in mid air. Each divine mine differentiated into eighty-one divine mines. A total of 6561 divine mines fell to the ground at the same time, just like a thunderstorm and heavy rain, which blew the ground out of a deep pit.


    Su Chen couldn''t help taking a breath.


    This is only the first thunder crack. If we start the second thunder crack, the scene is unimaginable.


    It''s not too much to call it divine punishment!


    If the ancient star was not hard enough, Su Chen estimated that as long as he started the second thunder crack state, his blow could smash a planet.


    Ha ha, I didn''t expect Su Chen to have the means to kill the stars one day!


    And now the mixed sky thunder has not been upgraded to the holy level. After reaching the holy level, its power will be greatly improved!


    Su Chen swallowed his saliva and carefully dragged Hun Tianlei into the furnace again.


    "Ding, do you spend 10 billion skill points to strengthen huntian thunder?"


    Su Chen has less than 20 billion left now, but what does it matter? Isn''t it just to spend so many skill points?


    Besides, he can earn at least 2 billion skill points every month. Will there be fewer skill points as long as he stays in Huanggu star for a few more years?


    "Strengthen!"


    "Ding, strengthen successfully. Congratulations to the host for raising huntianlei to holy level skill."


    Su Chen checked the upgraded mixed sky thunder attribute. Although the skill level was reduced, the comprehensive attribute was significantly improved, and the power damage and immune effect were enhanced, at least more than 50% higher than before.


    However, seeing the holy level consumption, Su Chen was very helpless.


    It takes 5 billion skill points to upgrade, and 50 billion to complete.


    What else can you say? Try to brush tasks and earn skills.


    If you are lucky, you can fill up the mixed sky thunder in more than two years. At that time, the power must be greatly improved.


    After calming down, Su Chen no longer thought much and continued to search for the eight barren divine fire and the barren fire spirit.


    Another month later.


    Da Riyan upgraded again, broke through the 18th floor, and earned more than 2 billion skill points. Su Chen was very satisfied.


    "By the way, master Xue should have returned to the town now. Should I say hello to him so as not to make him wait too long?"


    Anyway, it won''t take too long to go back and forth. Su Chen took advantage of the rest time to fly south to the transmission point town.


    At this time, it is the night of the ancient stars. Because the atmosphere is relatively thin, there is no cloud cover in the sky. The naked eye can see the bright and gorgeous starry sky, which seems to hover above his head, which is very shocking.


    Su Chen came to the town without delay. Compared with three months ago, there seems to be more people in the town. Many practitioners are flying south one after another towards the southern hemisphere. They should all go to collect divine flame grass.


    With a sweep of his mind, Su Chen really felt Xue Bin''s breath. He had returned to the town.


    Su Chen''s body flashed and directly blinked in front of Xue bin.


    This is a small wooden house temporarily built with wooden boards. It should be built by Xue bin himself.


    Xue bin was not surprised to see Su Chen suddenly appear. Before Su Chen entered the town, he had sensed that Su Chen''s breath was close.


    "Xiao Chen, have you finished your cultivation?"


    Su Chen shook her head: "not yet. I came here specially to tell master Xue that you don''t have to wait for me here. I''m going to be closed in Huanggu star for at least five years."


    "Five years... It''s not a long time. You can go to seclusion. I won''t be in a hurry to leave for a while. When your seclusion is over, I''ll leave the ancient star with you."


    This... Su Chen thought about it and agreed.


    Maybe it''s too common for a strong person like Xue bin to shut down for a year. Maybe it''s a long time to shut down for hundreds of years or thousands of years.


    Farewell to Xue bin. Instead of leaving in a hurry, Su Chen wandered around the town for a while.


    Because more people came, there were more stalls in the town. Su Chen saw a lot of top-grade magic drugs, and even some people were selling fire spirit.


    This is a good thing.


    However, the price is also very expensive. A fire spirit will sell five million spirit stones, and Su Chen will certainly not buy them. After all, his efficiency in painting fire spirit is not low. More than a dozen pieces have burst out this month. Although most of them are used to smelt Fire Dragon Armor, there are still five left on hand.


    Su Chen is wondering if he wants to sell the fire spirit and replace it with a spirit stone?


    After all, the function of fire spirit is mainly to strengthen the magic weapon of fire system. Su Chen''s dark fire sword has been strengthened to the end, and the strengthening of Fire Dragon Armor is almost over. If you strengthen the fire dragon sword, the fire spirit will have no effect on him, and there will be a lot of fire spirit he can brush in the future.


    You''d better sell it. Three fire spirits can be replaced by three 8000 year flat peaches, which is more meaningful to Su Chen.


    Su Chen found an open space, set up a stall and put three fire spirits on it.


    Someone came to bargain immediately.


    Su Chen didn''t want to waste time here, so he took the initiative to reduce the price. Four hundred and fifty thousand pieces and three fire spirits sold 13.5 million spirit stones. After getting the spirit stones, Su Chen flew away directly.


    However, as soon as he flew out, Su Chen sensed that someone was following him behind him.


    Su Chen frowned slightly and immediately knew the reason.


    It should be the spirit of the fire.


    It is estimated that someone guessed that Su Chen knew where to get the fire spirit and wanted to find the fire spirit through Su Chen.


    Although there is no threat to herself, Su Chen doesn''t want to be disturbed and closed.


    "Try the power of Saint level mixed sky thunder."


    Su Chen grinned, his mind moved, the sky was surging, and 81 divine thunder split in the direction of the tracker.


    "I''ll go."


    "Poof..."


    "Bad luck!"


    Several friars following Su Chen fell to the ground by a sudden divine thunder. They were badly hurt. They howled and didn''t dare to catch up again.


    Su Chen accelerated and disappeared at the end of the sky.


    Entering the Arctic circle again, Su Chen found that there was a gorgeous colored aurora in the sky at some time. Su Chen was amazed at the first sight, but soon found something unusual.


    These Aurora, like road signs, are guiding something.


    Su Chen was more and more curious, and immediately decided to follow the guidance of the aurora to have a look.


    Although it will be dangerous to go deep into the Arctic Circle, Su Chen has now adapted to the environment here and knows how to judge that the towering pillar of fire will appear in the right place. Therefore, as long as there is no wave, there will not be much problem in safety.


    And Su Chen also wanted to go to the north pole to see the battle traces left by Emperor Langya.