Luo Yu had learned about these things, so he only walked around those Danfang jade slips with curiosity on his face, and then put away his interest and walked to the rows of bookshelves where the array books and rune books were stored.

Among them, in the formation classics, Luo Yu stayed for a lot of time, perhaps because the formation was too unpopular, the formation books stored in the second layer were really quite practical, which made Luo Yu a little different, but then Luo Yu carefully considered it again and again, and felt that it was better to forget it, the formation was a one, broad and profound, and he now had several rare formation books in his hand, which were much more advanced than this second layer, and it would not be of great use if he really got it.

And Luo Yu now has two pieces of jade slips in his hand, even with the help of his junior brother Wang Zhong, he can take up to three pieces of jade slips is the limit, no matter how much he can't say, it will make it difficult for the other party to do.

Therefore, what exactly to choose for this last piece of jade, Luo Yu still wants to be cautious.

When Luo Yu finally walked to the wooden shelf where the talisman was stored, his eyes suddenly showed a little novelty, this talisman is also extremely practical, among which the invisibility talisman, the earth escape talisman, the vajra talisman and so on are all life-saving things that Luo Yu has a deep understanding of, if you can learn one or two from here, it can be regarded as a great gain.

It's just that talisman making also requires talent and unremitting efforts, Luo Yu originally studied some in Baiyitang, and finally gave up with reluctance, those things are really ignorant to Luo Yu, dazzling to read, there is no talent at all, plus there was no condition to buy 'talisman spirit pen' and 'spirit ink' at that time, so the matter of learning talisman making naturally came to naught.

Later, although Luo Yu had time, he was busy with other things day and night, and all kinds of reasons were combined, resulting in the end he was unable to learn the knowledge of talisman making, and now if he started from scratch, it was inevitably a little late, and talisman making was the same as alchemy, the cost was too great, and the average monk really couldn't afford to learn, Luo Yu thought about it carefully, and felt that even if he started to study now, he was willing to spend a lot of effort and time, but he could refine the invisibility talisman and earth escape talisman by himself in a short period of time. Powerful talismans such as vajra talismans are also unlikely.

Because of the mysterious flame assistance in the elixir, the spiritual powder used to refine the elixir is equivalent to the medicinal materials of high vintage, which makes Luo Yu's alchemy smooth sailing, and Luo Yu himself does not have the slightest talent for alchemy, which is purely caused by external force and penance.

In the same way, this talisman making method mysterious flame can't help, so you can only stare dryly, after all, when manpower is poor, Luo Yu still has this self-knowledge.

After Luo Yu thought clearly, he quickly swept through the dazzling rune bookshelves, and was about to leave with a sigh of regret, when he suddenly noticed that there was a small wooden box behind the bookshelves where the talisman jade slips were stored in the last row, about three feet long and wide, and it seemed to have been placed here for a while, this box was open, and there were some things like rags and gray pages stored inside.

"Pages?" Luo Yu suddenly moved when the corner of his eyes skimmed to the page, this tradition of using pages to record is a habit that only existed in ancient times, Luo Yu has always been very sensitive to these pages since he got the "Heavenly Luo Sword Sutra" recorded in the pages, and suddenly saw this thing in the library hall, and suddenly became a little curious.

However, this small wooden box is placed in such an inconspicuous place, it is difficult for ordinary monks to find it if they don't pay attention, but after thinking about it, if you want to say that there are often peerless treasures and rare exercises inside, it is absolutely impossible, after all, this box is all open, and it is easy for paying attention to monks to find out, and there is no secret at all.

Since there is no specific classification on this page, it must be something from the side door of the immortal cultivation world.

Luo Yu thought so in his heart, so he walked over slowly, and after approaching the small wooden box, he suddenly smelled a faint smell of rot in his nose, and it seemed that no one had been willing to look through or clean it for a long time.

"Click!"

Luo Yu picked up the gray page on the top, but the page seemed to have been corrupted and damaged a long time ago, and it made a sound like it was about to shatter when it collided with each other.

This couldn't help but make Luo Yu frown, it had been damaged like this, I am afraid that even if there is anything recorded in it, it will not be able to be read with divine sense, but Luo Yu still can't help but urge Shen Nian to try it, but as expected, Shen Nian cannot penetrate into it at all, if he increases the output of Shen Nian, Luo Yu suspects that this gray page will crack unsupportively.

Shaking his head, Luo Yu put the pages back in their place, and then randomly found two strange items on top and looked at them, they were all the same and unreadable, which couldn't help but make him quite puzzled, what are some damaged and unreadable pages still doing here, I'm afraid they are like garbage and no one cares about them.

Thinking of this, Luo Yu finally lost interest in looking at it any longer, so he subconsciously threw a piece of yellow damaged jade slip in his hand into the wooden box, and then planned to turn around and leave.

But right now!

The jade slip that Luo Yu threw down happened to lean against a corner of the edge of the wooden box, and a ray of sunlight shining in from the outside to the inside on the second floor of the library hall reflected through the yellow jade slip, and suddenly illuminated a small dark corner of the wooden box, and Luo Yu happened to have not looked at the contents under the wooden box.

As a result, when Luo Yu turned around halfway, suddenly that light shot into his eyes, it was a dark black ancient character, but this one word made Luo Yu stop again!

"Yi? is this word so familiar?" Luo Yu suddenly recalled in confusion, his face was a little confused, but in an instant, he slapped his head again, and exclaimed: "No wonder it is so familiar, this word 'Yi' is not the ancient immortal cultivation world script, but the mortal script of the secular world!"

Luo Yu suddenly realized that he had really not returned for many years, and he had almost forgotten his roots, and he couldn't even see the mortal words in the secular world, so he couldn't help but smile self-deprecatingly.

Immediately, Luo Yu immediately walked back again, how could there be something written in mortal characters in this wooden box, this is too strange, is there anything else in the mortal world that is worth learning from immortal cultivators?

After Luo Yu approached, he reached out and picked up a rag made of unknown material that would be illuminated by the reflected sunlight, but as soon as he pulled out the cloth, the light inside shone under the rag, and when he looked at it, it seemed that there was still a piece, Luo Yu was naturally a little surprised, but he did not hesitate to pick up the rag below, but as soon as he pulled it out, another piece immediately appeared below

"It's not endless, I'm going to see how many you have!"

Luo Yu suddenly smiled angrily, stretched out his arms, and pulled aside all the strange things around him, while groping with his hands underneath for a while, gradually, he picked up the rags of the same material until the eighth rag was taken out, and then no matter how Luo Yu groped, he couldn't find anything.