The alchemy heir, now a second-level alchemist, wanted to express his gratitude to Lu Changan for his care in those years.

The last two letters were sent by Zhou Qingxuan and Xia Wenyue.

Zhou Qingxuan sent an invitation to Lu Changan, hoping that he could go to the beast-controlling Zhou family to discuss the experience and skills of beast-controlling.

Lu Changan is not interested in beast control, but when he has time, he can study the Gu insect restrictions in Zhou Qingxuan's mind and further improve his own unique restrictions.

Xia Wenyue's jade slip letter was sent from Aoyue Palace in Feng Kingdom.

The surrounding immortal kingdoms formed a defense alliance to jointly resist the invasion of demons.

The war between Feng State and Liang State was not affected and normal exchanges were not affected.

In addition to congratulating Lu Changan for forming a pill, Xia Wenyue mentioned the current situation in Aoyue Palace in the letter and asked him not to worry.

Due to the covetousness of the Xie family of Chen State, Aoyue Palace protected Xia Wenyue very well.

The inheritance of Aoyue Palace is dominated by female cultivators, and most of the male cultivators in this sect are coolies and servants, serving the higher-ups.

Xia Wenyue's master was a female golden elixir master who took good care of her.

Xia Wenyue is still practicing the "Frozen Ancient Scrolls", and the resources he enjoys are not the same as Qingshawan.

Not long ago, her cultivation level broke through to the middle stage of foundation building, which was slightly faster than ordinary earth spirit roots.

At the end of the letter, Xia Wenyue faintly revealed her longing for Lu Changan and stated that she would repay the kindness of the past.

"After more than ten years apart, it's rare that this woman still has this heart."

Lu Changan nodded secretly, feeling slightly pleased.

After thinking about it, he didn't reply to Xia Wenyue's letter.

Xia Wenyue's innate Taoist identity is quite special, and her correspondence can easily be intercepted and viewed.

Fortunately, Xia Wenyue is not stupid, and her thoughts in the letter are very vague, and she is more interested in respecting and caring for her teacher.

"Until this female cultivator reaches the mid-to-late stage of elixir formation, try not to contact her so that the outside world will gradually forget about our relationship."

Lu Changan only needs Xia Wenyue to abide by the promise of the inner demon's oath, and there is no need for emotional entanglement.

The latter will only bring disaster to Lu Changan.

I believe that under the erosion of hundreds of years, this woman has seen the big world, and the bud of unrequited love in her youth will also be wiped out.

…

A few days later.

Lu Changan came to the underground stone hall at Yunlai Peak.

This underground stone temple located underground was built one after another by earth rock rats digging passages over the past few years.

At the beginning of the construction of the stone palace, Lu Changan invested in materials and built it himself.

Later it was discovered that the rock rat's innate spells made him better at building houses than himself.

Simply draw the blueprint and let the rock rat take care of it.

This underground stone palace has many restrictions.

When he came back this time, Lu Changan deployed a quasi-fourth-level formation here. The mansion above was enough for a third-level formation.

The Xuantian Gourd Vine was also transplanted to the underground stone hall to connect the energy of the earth's veins.

A special room is dedicated to this purpose.

"It's time to start."

Lu Changan drove the reluctant Xuan Shui Turtle out and stayed alone in the room.

He immediately sacrificed his lifespan and used the secret technique of evergreen.

Buzz~

Lu Changan's palms are surrounded by ancient and verdant halo, like new buds, exuding a life cycle of four seasons, blending into the withered Xuantian gourd vine.

The healing and repair methods of Evergreen Secret Technique do not use life span as the carrier.

The ability to heal is the Evergreen Kung Fu itself.

Even if he doesn't use Shou Yuan, Lu Changan's Evergreen Kung Fu is extremely good at treating people, better than many famous doctors in the world.

Lu Changan could treat some serious injuries or ordinary hidden diseases without sacrificing his lifespan and nurse them back to health.

Sacrificing life span allows the basic ability of healing and repair to be qualitatively transformed and sublimated.

Lu Changan had not been seriously injured in the three previous elixir transformations. The sacrifice of lifespan enhanced the effect and greatly saved time.

Many secret techniques in the world of immortality achieve terrifying improvements several times or even ten times at the cost of consuming life span.

"Four years of life!"

Lu Changan stopped and checked the changes in Xuantian Gourd Vine.

I saw that the withered and yellow part of the gourd vine, less than half an inch in length, was covered with green.

Such an obvious effect exceeds the foundation building period by more than ten times!

"The nourishing ability of the immortal golden elixir formed by the Evergreen Gong itself is several percent stronger than that of the true elixir in its early stages."

Lu Changan looked happy.

At this rate, he could spend up to several hundred years of life to restore the green color of the entire gourd vine.

A few hundred years of life seems like a lot.

But the goal of nourishment and recovery is, after all, Xiao Xuantian's growing gourd vine, the companion of the sky. Such an effect is already impressive.

Lu Changan measured the current golden elixir's initial mana power, "About ten years of life can restore an inch of the Xuantian Gourd Vine's greenness."

If you reach the middle and late stages of Golden Elixir, there is still room for improvement in the nourishing effect of Evergreen Gong.

"Forty years of life!"

After seeing the curative effect, Lu Changan sacrificed another forty years of his life.

After a while, the withered yellow area of ​​Xuantian gourd vines regained a few inches of green.

Um?

At this time, Lu Changan frowned and looked at the dead and black prototype of the small gourd.

To be precise, this is just the embryo of the gourd and has not really taken shape.

"The gourd vine has regained some vitality, but this little Xuantian gourd has not changed much."

In Lu Changan's perception, the prototype of the gourd fruit was lifeless and lifeless.

I don't know if it's an illusion.

He felt that the dead energy emitted by the withered black gourd was even stronger.

Even the Evergreen Secret Technique can't save it.

"Could it be that the dead are new? We need to restore the green color of the gourd vines and then cultivate the Xuantian gourd again?"

Lu Changan thought for a long time.

Calculating this way, he could spend hundreds of years of life to recover Xuantian Gourd Vine at most.

At that time, it will take many years and how much lifespan will be consumed to bear Xuantian Fruit again.

The cost of cultivating Xuantian gourd may be even greater.

Lu Changan realized that the longevity of the golden elixir stage might not be enough.

He can't use up all his lifespan, he must at least keep it for a few hundred years.

Unless there are more sources of longevity.

For example, things that extend life, second-level quality life-extension pills, third-level life-extension pills...

Another example is swallowing the Tao Fruit of other Evergreen Skills.

"Don't worry, let's observe for a while."

Lu Changan still has 1,100 years to live, so he will stop for now.

…

Two months later.

After observing, Lu Changan discovered some good news.

As long as the Xuantian Gourd Vine is watered and nourished with evergreen mana every day, the latter will be in a state of slowly returning to green.

Xuan Shui Turtle's cloud and rain nourishment is much less effective, but it can at least keep the gourd vine in a state of recovery.

It can be seen that the gourd vine has at least reversed its vitality.

Theoretically speaking, even if Lu Changan does not spend his life span on a blood transfusion, as long as the time is long enough, Xuantian Gourd Vine will eventually recover.

"The more parts of the gourd vine are restored to life, the faster the greenery will grow and recover on its own, which should also increase."

Lu Changan made a guess.

He also sacrificed a hundred years of longevity and left a thousand years of life.

This time.
To be continued...