"It's finally out!"

Li Yang was very excited, his face used to be black, thick and hard, but now his white and somewhat handsome face was about to twist into a small chrysanthemum.

However, this smile quickly froze, and a huge force hit the Heavenly Demon Box, but it was a dragon tail that struck the Heavenly Demon Box.

Li Yang felt that the sky was spinning, and the people were "banging and banging" in the Heavenly Demon Box, and it took a full three minutes for the Heavenly Demon Box to settle down.

After churning in the Heavenly Demon Box for so long, he was dizzy, his stomach was tumbling upside down, and the contents were about to be spit out several times, and it was suppressed for a long time before it gradually subsided.

Li Yang then probed out his thoughts, because under the water, his thoughts were blocked, and he could only probe to an area about ten meters in diameter.

The next moment, a look of horror appeared on his face, and he said, "This is ......"

Not far away, there was a small pothole the size of a bowl, which contained a golden liquid and filled a small half pothole.

Li Yang controlled the Heavenly Demon Box and got closer, finally looked closer, and exclaimed, "Unexpectedly...... It's really dragon marrow!"

The dragon marrow does not refer to the spinal cord of the dragon, but the essence produced by the underground dragon vein, which is a peerless artifact, which can be encountered but not sought!

The conditions for its formation are too harsh, first of all, there must be dragon veins underground. However, not all dragon veins can give birth to dragon marrow, at least there is a slight possibility of preserving it for more than a million years, but at most a few drops can be formed. And there is half a bowl here, at least after tens of millions of years, and I don't know that a dragon vein is produced together.

"No, how could there be a dragon vein in the water?"

The dragon vein is generally an undulating mountain range, Li Yang's mind was a little messy, suddenly, he remembered something, and exclaimed: "Could it be ...... There's a dragon mound hidden under this water?"

Dragons are not eternal, they also die, and the place where they are buried after death is called a dragon mound. After tens of thousands of years, the corpses of the dead dragon will become one with the land, forming dragon veins. Such dragon veins usually give birth to dragon marrow, because it is easier to form dragon marrow after fusing the essence of the dragon body.

Li Yang was basically sure that there was a dragon mound underwater, and the black dragon had been hiding here, in addition to protecting the golden lotus, the other might be to protect the dragon mound.

However, he didn't have the heart to guess the purpose of the black dragon staying here, the immediate urgency was to take away the dragon marrow, those dragon marrow were really too important to him, it was just timely rain.

Without much effort, Li Yang took away half a bowl of dragon marrow, and then controlled the Heavenly Demon Box to stop turbulence.

He was waiting for his chance, waiting for the black dragon to sleep again, otherwise he would probably be caught again if he left now.

In the Heavenly Demon Box, Li Yang looked at the dozens of drops of grape-sized golden dragon marrow that appeared in front of him, and he was ecstatic in his heart: "With these, Lao Tzu will definitely be able to open up the ninth spiritual vein this time!"

Yes, there is nothing in this world that is more suitable for opening up the ninth spiritual vein than using dragon marrow. Back then, the Emperor Suiren also used this method, so he had such a deep understanding of the dragon marrow.

Dropping a drop of dragon marrow into his mouth, Li Yang put away the other dragon marrow, and then began to concentrate on refining.

Almost without his deliberate guidance, the huge essence contained in the dragon marrow entered the spine for the first time, and Li Yang snorted on the spot, feeling as if the inside of the spine was electrified.

In the end, he still underestimated the huge medicinal power of the dragon marrow, but it was also exactly what he wanted. Before, he was a little worried that the dragon marrow might not be enough, but now he didn't have to worry about it at all.