On this second level, her thinking becomes more active.

It seems that the mysterious substance Ling Yun mentioned has become more intense.

Next, the two stepped onto the third floor of the small building.

The functions of the third layer are also very clear.

Looking around, there are countless bookshelves here.

There are already some books on some bookshelves.

"These books should have been collected by your parents."

Ling Yun said.

Du Shiyin's heart trembled slightly and he hurriedly walked over.

At first, she was filled with excitement and nostalgia.

But as she looked at them, she couldn't help but immerse herself in these alchemy books.

Ling Yun also had a strange expression on his face.

These alchemy books collected by Du Shiyin's parents were quite extraordinary even from his perspective.

There were even some alchemy books that touched him.

also.

Although the knowledge in these alchemy books is only very basic knowledge to him.

But for the alchemists of the ancient world in the early Yuan Dynasty, it was absolutely extraordinary.

Moreover, this also saved Ling Yun a lot of effort.

For the time being, there was no need for him to transcribe the alchemy knowledge in his mind on a large scale.

There are more than 2,000 alchemy books collected in the bookstore in front of you.

In the early days of the establishment of the small building, these alchemy books were believed to be completely sufficient.

From now on, Ling Yun will just make time to write some alchemy books when he occasionally has free time.

"Ahem."

Then, Ling Yun coughed twice, waking up Du Shiyin who was immersed in the elixir book.

Du Shiyin woke up.

"There is no rush to see the alchemy right now. After I leave, you will have plenty of time to read it."

Ling Yun smiled.

Du Shiyin's face turned red.

But then she thought of something and exclaimed: "Sir, the mysterious substance in this third layer is much richer than the first two layers.

On the first level, my thinking speed increased by about 30%.

On the second level, it is doubled.
Chapter completed!