"The secret of the holy land?"


    Su Chen was so ashamed that she thought the black phoenix wanted to ask him for rain and dew again.


    "What''s the secret? Why didn''t you say it when you met Zen Guangming just now?"


    The black phoenix whispered, "it''s a little unusual. Of course I''ll tell the master first, and... Forget it, I can''t tell you clearly. In short, the master will find out later."


    Su Chen thought and said, "take me to have a look."


    Black phoenix soon took Su Chen to the depths of the cave. Suddenly, a heat wave hit, and an ordinary magma pool appeared in front.


    There are many active volcanoes around here. It''s not unusual for magma to appear.


    "Come out!"


    The black phoenix suddenly called.


    Emperor Huo Qilin''s huge head suddenly came out of the magma pool and opened his big mouth.


    Then the black phoenix pulled Su Chen into the mouth of emperor huoqilin.


    "Er... What is this?"


    "Master, don''t be impatient. You''ll know later."


    Have you learned to sell off?


    Emperor Huo Qilin suddenly closed his mouth, moved his body, and sank into the magma.


    Su Chen could vaguely sense that the emperor Fire Kirin was swimming rapidly towards the depth of magma.


    After about half an hour, it seems that he finally arrived at his destination.


    Emperor Huo Qilin''s big mouth opened again. The black phoenix carefully urged her vitality and protected Su Chen''s body.


    Su Chen went out and found a huge bubble in front of her.


    In the bubble, there is a vacuum zone, where a holy and pure white palace is suspended. It is completely made of top jade and looks very noble.


    "What is this?"


    It''s really strange that there is such a strange palace under the holy land.


    "This was discovered by Emperor Huo Qilin when he was bathing in the magma. I went into it once before and found some terrible things in it."


    Something terrible?


    Su Chen followed the black phoenix into the bubble.


    As soon as she entered, Su Chen felt a strong burning sensation all over her body.


    It''s a vacuum environment. There is no flame, but the temperature is terrible. If it weren''t for the shelter of a strong man like the black phoenix, Su Chen would be directly burned to ashes if he came in alone.


    "Be careful, master. This place is full of the purest light flame. This flame has no form, but it can burn even the void. The best way is to smear some saliva of emperor Fire Kirin on him, which can effectively resist the power of the light flame." the black phoenix said and asked Emperor Fire Kirin to spit out his huge tongue and rinse Su Chen.


    Su Chen looked at his wet body and felt quite helpless.


    But the effect is really good. Emperor Huo Qilin''s saliva forms a special protective film, so that the external temperature can''t invade Su Chen.


    Without hesitation, Su Chen immediately flew towards the palace.


    The volume of the palace is very huge. It seems that it is not built for people to live at all. Only the two white jade pillars standing at the door are hundreds of meters high.


    After entering the palace, Su Chen found that the palace was empty and there was no strange existence.


    "Where is the terrible thing you said?"


    "Master, don''t worry."


    The black phoenix carefully investigated the surrounding environment, then took Su Chen into the palace and found a huge and empty room.


    The room is well furnished, but the volume of all items is hundreds of times larger than that used by normal people. The white jade soft bed is more than 30 meters high. I''m afraid it can sleep hundreds of people at the same time.


    "Is this the giant''s palace?"


    "I don''t know. This palace is not the key point. The key point is the following things."


    The black phoenix took Su Chen and came under the bed.


    Here is a cracked white jade floor tile. The gap is almost one person wide and can be drilled in.


    "Master, come with me."


    After that, the black phoenix got into the gap.


    Su Chen calmed down and immediately followed.


    All the way down, through the thick ground, Su Chen saw that there seemed to be a huge secret room below.


    They floated in slowly.


    Seeing the things around, Su Chen could not help frowning and her breathing became disordered.


    In this closed secret room, hundreds of square tripods carved from white jade are placed impressively and neatly.


    Each square tripod was filled with a milky white liquid.


    There are floating objects like giant walnuts.


    No... it''s not a walnut, it''s a brain!


    "These are..."


    Su Chen was so shocked that she didn''t know what to say for a moment.


    Black phoenix said: "from the shape, these are not human brains, but the brains of demon family experts. The sea knowledge of each brain is completely preserved. Before his death, they were all experts at the level of demon family wheel sea environment. There are a total of 100 white feather square tripods, 63 with brains, and 37 are empty."


    "Are you sure these are the actions of the holy land?"


    "These brains exist for a long and short time. The oldest one has been soaked for tens of thousands of years. This is the foot of the holy land. In addition to the holy land, I really can''t think of anyone who has the ability to capture so many powerful demons and store their brains here."


    "Why?"


    Su Chen frowned. He really couldn''t think of the reason why holy land did this.


    If you simply punish the demon clan, killing is obviously the best result. If you do this, it will increase the trouble. There are also some hidden dangers.


    Is it to imprison these demon family experts?


    These brains do seem to have a certain breath of life, that is to say, most of these demon family masters are still alive, but only one brain and sea knowledge are left, barely keeping their soul and in a state of life rather than death.


    This method of imprisonment and punishment is indeed very effective, but in the name of the holy land, I can''t think they can do such a thing.


    The black phoenix said, "I guess the holy land wants to study the secrets of ancient times!"


    Su Chen asked, "what is the secret of Taigu?"


    He suddenly thought that the purpose of Zen Guangming and Wu Mingkong going to Taigu island seemed to be to find some clues.


    The black phoenix said, "master, before the Sanqing sect spread the light of practice to the Xuanyuan continent tens of thousands of years ago, the Xuanyuan continent was completely under the control of the demon clan."


    Su Chen nodded: "I''ve heard of it."


    "This is not a secret. Most of the world have heard of it, but the world only knows one thing and does not know the other. I once heard my father say that the demon clan was not the ruler of the Xuanyuan continent. They were just prisoners bound on the Xuanyuan continent. At that time, the Xuanyuan continent was a huge cage!"


    "And such a thing?"


    The black phoenix continued: "in the ancient times millions of years ago, immortals built twelve heaven towers on the Xuanyuan continent, not to connect the immortal world, but to exile countless prisoners here. Among them, there is also a huge secret hidden. It is said that whoever can solve this secret is qualified to escape from the sea of suffering and fly on the ground."