Bai Yu and the three of them waited at the gate of the Imperial Soul Stone Mining Area for half an hour and still didn't see the Grand Commander come out, they felt that something big must have happened.

They took the token and entered the Imperial Soul Stone Mining Area, and saw that the Grand Commander had all passed out on the ground. Bai Yu turned around and was about to remind the two senior brothers not to inhale the black qi when he saw them fall to the ground.

Bai Yu took the black hammer and was not affected by the black gas, walked into the depths of the mining area, and found that the soul stone mining area did not directly produce the soul stone, but put the soul stone on the magic circle in the center of the mining area, and after the blessing of the magic circle, the soul stone ore would become the soul stone, which was the core secret of the Mei family.

Bai Yu walked into the circle and found that there was a little crack on the edge of the circle, and the black gas came out from here.

Bai Yu put the hammer on the crack and let the hammer absorb the black gas on its own. Bai Yu found that the lines on the hammer were slowly recovering on their own, and the lines were automatically extended and connected, and the shape became clearer and clearer.

Bai Yu looked at the hammer emitting black fluorescence with excitement, and finally realized that the pattern was made up of a combination of flowers, lotus flowers, and some obscure symbols.

It took a whole hour for the hammer to absorb the black gas, and the hammer floated up from the formation, and the black fluorescence all over the body looked sacred, and the lines on the hammer body seemed to come alive: those obscure symbols were like a slowly flowing stream, carrying the intertwined patterns of flowers and lotus flowers on the other side of the hammer body.

Suddenly, the fluorescence on the hammer body was restrained, and the lines disappeared, like an ordinary hammer falling into Bai Yu's hand.

Bai Yu held a black hammer, and he actually gave birth to a kind of pride that looked down on the world and overlooked all living beings, and if he wanted to, the sky could be smashed out of a hole by the black hammer.

A picture appeared in Bai Yu's mind: at the end of a long passage, there was a mirror dedicated to absorbing souls, the mirror had two sides, and the other side was also connected to a long passage, and the black hammer was suspended directly above the mirror, specifically extracting the black qi in the soul.

For a long time, the Black Hammer absorbed black qi until one day, a sword burning with raging fire broke through the passage and stabbed at the Black Hammer.

The black hammer did not show weakness, and smashed the sword body out of the passage with a hammer, and suddenly a big hand that was incredibly beautiful grabbed the black hammer...... The picture stopped here, and Bai Yu had two more names in his mind: Nine Shadow Hammer and Fengling Sword.

Bai Yu could be sure that the Black Hammer was the Nine Shadows Hammer. The black gas coming out of the crack in the circle was the same as inside the passage.

Bai Yu suspected that the passage was under the circle, the cracks of the circle were inevitably related to the cracks of the channel, the person who built the circle must have known everything about this channel, since he destroyed the channel to let the black gas leak, why did he build a purification circle?

The function of this evolution circle is similar to that of the Nine Shadow Hammer, the black qi purified by the magic circle will be absorbed by the soul stone, and the soul stone will be transformed into the soul stone, is it for the soul stone?

According to the purification efficiency of the magic circle, only a few hundred soul stones can be produced every half a month, will a character of this level lack such a few soul stones?

The more Bai Yu thought about it, the more questions he had, and picked up the Nine Shadows Hammer in his hand, although the hammer body was black and fluorescent, but the vicissitudes of life were fearless and aggressive.

In the long years, the Nine Shadows Hammer has absorbed many black gases in the passage, and the purified black gas in the hammer body does not know how much it has stored, if you can master the trick of releasing these evolved energies, then you can use soul stones to produce soul stones infinitely, not to mention that you can enrich the world, and it should be no problem to become a giant.

Bai Yu's understanding of the Nine Shadows Hammer was not even an introduction, and it was impossible to talk about mastering the trick of releasing energy.

Bai Yu has a regret of entering Baoshan and returning empty-handed. On the market, one soul stone can be exchanged for a thousand soul stones, Bai Yu has dozens of soul stones in his hands, if all of them are converted into soul stones, where will he worry about the materials?