Back in the cave, Tang Hao began to compile teaching materials.

In this regard, he has a lot of experience, and he has compiled many classics of medicine before, and now he has changed to Dandao, and he is also familiar with it.

He took out all the Dan Dao classics on his body, reread them, sorted them out carefully, and then wrote down all his experiences and feelings over the years of learning Dan, and then compiled a textbook.

This is a huge project, Tang Hao has collected I don't know how many Dan Dao classics over the years, at least millions of them, and it will take a lot of time to reread them all.

What's more, he still has to tidy up.

Fortunately, he has a lot of souls, and if he is not enough, he will directly cut out another batch, and in his portable cave mansion, thousands of souls are invested in this project together.

They held stacks of classics and baskets of jade slips, and kept flipping through them.

Some of these classics are from Qiyuan, from the Taixu Realm, some from the Endless Starry Sky, and some are from the Pangu Continent......

And what they saw would all converge in Tang Hao's mind.

Every moment, there would be a myriad of information coming in, and his head was running at high speed, quickly skimming through the information and sorting it out one by one.

By rereading these Dan books, Tang Hao made some new discoveries and new insights from time to time, and his mastery of Dan Dao knowledge became more and more comprehensive.

Countless ancient pill techniques, secret methods, and pill recipes were all sorted out by him and written into the textbook.

This batch of textbooks can be said to be the culmination of the development of Dandao over the past tens of thousands of years, running through ancient and modern times, all-encompassing, and is an encyclopedia of Dandao.

It can be said that in this world, there is no more comprehensive Dan Dao classics than this, and the major clans of Pangu cannot have them, even if they are thirty-three days, those most ancient inheritances cannot be there.

Tang Hao's set of textbooks is absolutely unique in the world.

If there is a Dan Master here at this moment, he will definitely be shocked.

In the history of Dan, no one has ever done such a feat and compiled such a comprehensive Dan Dao classic.

This is definitely a feat of the past and the present, enough to leave a name in the history of Denmark!

"These texts...... It's not enough!"

Tang Hao was not satisfied, in his collection, there were still fewer Dan books in the Pangu Continent.

Since you have done it, you naturally have to do your best, this is Tang Hao's habit.

He found Fuyunzi, took all the classics left by the Creation Dandao, studied them carefully, and compiled them into the textbook.

Soon, this set of all-encompassing Dandao classics that gathered the strengths of thousands of families was finally born.

A set of twelve volumes, tens of millions of words, just about plants and trees there are three volumes, a volume of medicine, a volume of medicine, and a volume of analysis of pharmacology, the other nine volumes are all about Dan, collecting millions of Dan in the world, introducing from ancient times to the present, tens of thousands of Dan schools.

All kinds of Dan Dao techniques and secret methods are all included.

"It's finally done!"

When the last volume was written, Tang Hao breathed a sigh of relief and was relieved.

It was too laborious to compile such a huge set of books, and during this time, he had devoted all his efforts and efforts to complete this huge project with the help of tens of thousands of souls.

"Congratulations!"

"Fellow Daoist, once this book is completed, it will be able to shake the ages and go down in history!"

All the souls were beaming with joy and congratulating one after another.

In Tang Hao's heart, there is also a sense of pride, not that he is boasting, his set of Dan books integrates what he has learned all his life, absorbs the strengths of thousands of families, and integrates the Dan Dao of ancient and modern eras.

There is no Dan book in this world that can compare to his one.

As long as he spreads this Dan book, he will be able to shake the Dan world and shine through the ages.

"This one is equivalent to an encyclopedia, very comprehensive, so it will be named "Dandao Encyclopedia". Tang Hao thought about it for a long time, and finally decided on the name.

"With this set of encyclopedias, it is still not enough, although this set is comprehensive, but it is not profound enough, it cannot improve the level of a Dan master in a short time, I also need some Dan books, specifically to write my own experience, skills. ”

Tang Hao pondered for a while and continued to write.

This time, he focused on sorting out his own experience and compiled a variety of teaching materials, some suitable for novices, for cultivating junior Dan masters, and some suitable for advanced levels.

"How Dan is Made"

"Master Tang on Dan"

"Dan Dao Cheats! Three Months of Introduction"

Tang Hao played casually, the speed was very fast, only half a month's effort, dozens of textbooks were born, and he also turned out the textbooks compiled in Shennong Valley before, and re-compiled them, which became a batch of new pharmacopoeia.

After a month and a half of retreat, Tang Hao finally came out.

When he came to Fuyunzi with this stack of Dan books and put them in front of him, Fuyun Lao Dao was stunned, and the teacup in his hand slammed and fell to pieces.

"This, this, this...... You wrote it?"

Fuyunzi's eyes widened, and he stared blankly at the pile of small mountains of books in front of him.

He had long known that this Master Tang was compiling the Dan Book in retreat, saying that it was to improve his level of cultivating the Dan Dao, but he still didn't believe it before, thinking that this was just talking.

After all, compiling the Dan Book is not a simple matter, it requires a long period of accumulation, and this one is too young, although his Dan skills are high, his accumulation is not enough to write the Dan Book.

Even if it is made up, it is just an ordinary Dan book.

Moreover, it is only a month and a half, how many things can be made up.

But right now, this mountain-high Danshu directly stunned him.

"With quantity, the quality is definitely not high!"

He quickly recovered and muttered quietly.

When other masters write textbooks, it takes years, or even decades, to write a good Dan book, and it only takes a month and a half to produce a good book.

Thinking like this, he took a copy at random, glanced at the cover, and was stunned.

"Dandao Encyclopedia? Yo!

Fuyunzi smiled, a little unimpressed.

Then, he casually opened the Dan book, looked at it, and the smile on his face gradually solidified and became more and more stiff.

"This ...... This ......"

His eyes widened in utter disbelief.

"This ...... This can't be?"

He became a little agitated and frantically flipped through the Dan book, but the more he looked at it, the more incredulous he became.

This volume is devoted to a variety of genres, most of which he had never heard of.

"When is this school?"

"Is this ......too empty? Isn't this the Void Heaven Dan Dao Inheritance, how can it be here?"

He was getting more and more shocked.

After flipping through this book, he picked up another book, which introduced the plants and trees, and when he looked through it, he was shocked again, many of the plants and trees in this book were something he had never heard of.

"Impossible!"

He seemed to be stunned, pounced on this pile of Dan books, and looked through the past one after another, and his heart became more and more shocked.

(End of chapter)