Chapter 1163

Knowing that alchemy is not easy, Qin Feng doesn't stay there to disturb Yang Yuhao. Instead, he returns to Holy Spirit spring city and waits for news.

After adjusting his state, Yang Yuhao began to try to refine the elixir. A large number of natural materials and local treasures were divided into four piles. The four refining methods he developed need to be tested one by one, and each pile can only be refined 2 or 3 times.

It is extremely difficult to refine the elixir, but now there is no ready-made prescription, no known refining method, so we need to explore by ourselves, which brings greater difficulty. The consumption of natural resources and local treasures is great, and the consumption of elixir's spirit is great.

In the twinkling of an eye, Yang Yuhao has failed eight times and exhausted three piles of natural resources and local treasures, which means that these three refining methods are not feasible for the time being. Only the last pile of natural resources and local treasures, that is, the last method, is left, and this pile of natural resources and local treasures can only be refined twice.

Instead of rushing to start, he reflected on the reasons for his previous failures, pondered on the feasibility of the last refining method and the points needing attention, and only started refining after sufficient preparation.

Half a month later, the first refining still ended in failure, but this time it was the last step. There was a faint appearance of elixir forming, but Yang Yuhao's improper grasp of the last natural resources and local treasures failed.

Seeing that there was hope for success, Yang Yuhao's spirit was greatly boosted. He studied this refining method deeply and improved the matching and smelting of natural materials and local treasures.

After studying for a few days and trimming for a few days, he began to refine the elixir again.

More than ten days later, there was a brilliant light in the medicine cauldron in front of Yang Yuhao, accompanied by a stream of immortal Qi and fragrance.

Xiandan is about to succeed!

At this last and most critical moment, Yang Yuhao did not dare to relax. He concentrated on the spirit of the medicine and firmly controlled everything in the medicine cauldron. A trace of mental power and the power of medicine surrounded the already formed elixir.

After a while, there was a bright column of light in the medicine cauldron, which broke through the clouds and had a strong immortal spirit.

A lavender round pill rushed out of the cauldron and suspended on it.

"Boom!"

A sudden thunder fell on the elixir. Instead of destroying it, it made the elixir twinkle with lightning. The color became a bit darker and turned into dark purple, and carved a thunder pattern on the surface of the elixir.

"It's done!" Yang Yuhao let out a joyful cheer.

One side quietly guarding Qiu Shuang can't help but relax, and his face also overflows with joy.

For more than half a year, she has been watching Yang Yuhao fail nine times in a row. However, he has consumed too much and lost some weight. She is worried about him. Now he has succeeded.

Yang Yuhao named it dulei Xiandan. In his calculation, taking this Xiandan can increase the success rate by about 20%, but the actual efficacy will be known only after someone has tried it.

After getting the message, Qin Feng rushes over to see Du Lei Xiandan and marvels at Yang Yuhao.

However, it is extremely difficult to mass produce this pill. Only one pill can be produced at a time, which is a little inefficient. In addition, two main herbs are very rare and hard to find.

One of them is called Lei Anni fruit. It takes 500 years to blossom, bear fruit and mature. Each time, it produces seven or eight. Today, there is only one spirit tree bearing this fruit in the spirit world. Fortunately, it is in the Holy Spirit land and has been occupied by the spring family.