The magma surged and bubbled before rupturing.

Under the control of the old man at the border, the ancient bronze cauldron floated in the air, its body burnt to a scarlet red.

Li Dao stared at the ancient cauldron above the sea of fire, his eyes burning with passion.

Time passed second by second. The old man's body began to tremble. It was extremely difficult for him to move. Beads of sweat started to roll down his forehead.

"If you don't want this furnace of divine medicine to become useless, quickly give me a hand. I can't hold on any longer!"

The old man at the border suddenly shouted at Li Dao.

Of course, Li Dao wouldn't believe his lies, but the old man's struggle didn't seem fake. If he wasn't afraid of ten thousand, then he was afraid, if he really failed, then there would be no place for him to cry.

Li Dao looked around and said, "Those who see it will have a part in it. Helping you refine medicine is not a problem, but I don't have any pharmacology, so I'm afraid I can't help!"

"There's no need to go through so much trouble. You only need to transfer your power to me." The old man said with a deep voice. The ancient cauldron began to spin under his control.

Li Dao's eyes narrowed as he pondered over whether or not he should finish this old fellow off with a single slash. He decided that he might as well forget about it.

He placed his hand on the old man's back and rotated the golden core in his body, transmitting its power to him.

With Li Dao's help, the old man at the border let out a long sigh of relief. He urged the black and white Life and Death Qi and Yin Yang Qi to fly towards the ancient cauldron.

The black and white streams of air drilled into the small holes of the cauldron, and the entire cauldron began to shake violently.

"Do you know that since a hundred years ago, I have been collecting medicinal ingredients. In order to make this batch of Mysterious Life and Death Pills, I have traveled the world. I have wasted a lot of time just to prove myself to the supreme grandmaster?" It seems like I have let you take advantage of me! " The Fringe Elder controlled the ancient cauldron and still had the strength to speak. It seemed that he could relax a lot with Li Dao's help.

Li Dao sneered in his heart. Wasn't the purpose of the Frontier Elder saying all this to stabilize him? He was afraid that this furnace of pills would be wasted. However, even if he didn't say anything, Li Dao wouldn't destroy his alchemy.

As for the success of the medicine, Li Dao had the confidence to snatch the food from the mouth of the borderline old man. They were all Grandmasters, so they might be able to level up their Jindan Stage. However, he was already old, and his Qi and blood had declined. Was he still afraid of him?

Speaking of breaking through to the Grandmaster Realm, Li Dao thought of the Evil Buddha Sect's Apothecary Ku Xin. He had refined a half finished product of the Blood Yuan Evil Pill, its steps were not as complicated as the old man at the border refining a life and death Xuan Core. The main ingredients were the blood essence of warriors, and it was not as high as the Life and Death Xuan Core.

Therefore, the effect of the Mysterious Life and Death Pill must be stronger than the Blood Yuan Evil Pill.

Regardless of whether it was Zen Master Bitter Heart or the old people at the border, they both needed the help of pills to break through to the great grandmaster level.

As time passed, Li Dao's complexion became more and more unsightly. He discovered that the ancient cauldron was like a bottomless pit, which could not be filled no matter how hard he tried.

"Little friend, work hard. You're going to succeed soon." This batch of Mysterious Life and Death Pills is enough for us to break through the boundaries of the Grandmasters. The old man at the border spoke with a serious tone. He had already reached the final moment in refining medicine.

Of course, Li Dao knew the meaning behind the old man's words. He clenched his teeth and decided that the pills would all be his.

The magma surged with heat waves. Li Dao did not know how high the temperature of the Earth Fire was, but the back of the two martial arts grandmasters, he and the Fringe Elder, were already soaked through.

On the sea of fire, the ancient copper cauldron spun faster and faster, and dense gas came out from the holes in the cauldron's body.

Suddenly, with a loud bang, the lid of the cauldron exploded.

Li Dao's pupils constricted. The Jindan in his Dantian surged with boundless power as he struck the back of the old man at the border with his palm.

His palm struck the old man's back like it was hitting a sponge. Li Dao's expression was extremely ugly. The border elder leaped up and kicked the copper cauldron. A fist-sized pill that was black and white in both colors appeared, looking plump and sparkling.

Li Dao did not take any action to snatch the pill. Instead, he looked at the old man at the border who took out a jade box and placed the pill inside.