Although the Pill Tower of Wentian Academy is a tower, it's not a tower for living in.

The Pill Tower has a total of ten floors. It's said that each floor represents a realm of Pill Dao. The alchemists of Wentian Academy use the Pill Tower to measure their Pill Dao cultivation every year. A first-grade Human Pill Master can never climb to the second floor, and similarly, a third-grade Human Pill Master cannot climb to the fourth floor.

Besides, it is also the alchemist qualification certification tower of the five great empires.

In the five great empires, only one place is qualified to certify alchemists, and that is the Pill Tower of Wentian Academy. Every three years, a group of alchemists pay fees and come to the Wentian Academy Pill Tower for alchemist certification. An alchemist with a Wentian Academy Pill Tower certification badge can enjoy a 10% discount when purchasing spiritual herbs matching their grade in any commercial building.

Similarly, of two Earth Pill Masters, if one has Pill Tower qualification certification and the other does not, then the one with qualification certification will be much more popular and have much greater value.

When Mo Wuji arrived here, he saw the Pill Tower standing tall in the Alchemist Square from afar. However, this was not the time for alchemist certification, and there were relatively few people in the Alchemist Square.

Passing through the Alchemist Square was a bottomless abyss with no visible other side. Clouds and mist swirled below the abyss, and gusts of wind howled from time to time.

Above the abyss, various bridges connected to the Alchemist Square, like rays emanating in all directions, leading to different directions. Some of these bridges were only iron chains, some were built with wooden planks, and some looked like they could accommodate horse-drawn carriages.

Although Mo Wuji had never been to the Pill Tower, he knew that each bridge over the abyss represented a path to the residence of a top-level alchemist.

An old man with a white beard was sitting on a rock by the edge of the abyss, holding a fishing rod. His fishing rod extended into the abyss, as if fishing in the abyss. However, Mo Wuji did not see any fishing line in front of the fishing rod, let alone a fishhook. In fact, even if there were these, the abyss was not a fishpond; what fish could he catch?

"Senior, this junior wants to visit Granny Linglong. May I ask which bridge leads to Granny Linglong's residence?" Mo Wuji bowed and asked respectfully.

The white-bearded old man glanced at Mo Wuji and said, seemingly with difficulty, "The one you can't see."

After saying this, he focused on the abyss again. No matter how Mo Wuji asked, he would not say another word.

Mo Wuji had no choice but to stand aside and wait.

After an unknown amount of time, the old man suddenly raised his fishing rod, and Mo Wuji was surprised to find that the old man had actually caught a fish. The fish was entirely transparent, like a silver fish.

The old man immediately excitedly put the transparent fish into a prepared wooden bucket. Mo Wuji could only vaguely see the appearance of the fish before the wooden bucket was closed.

How could he catch a fish without a fishing line? Besides, the abyss seemed unfathomable; where did the fish come from? Two impossible questions had both become facts.

Mo Wuji could no longer restrain himself and scanned the front of the old man's fishing rod with his spiritual will. Immediately, he saw that there was indeed a fishing line in front of the fishing rod, but it was a fishing line that he could not see with his naked eyes.

Mo Wuji suddenly thought of the old man's words, "the one you can't see," and immediately understood. He scanned the abyss with his spiritual will. After a dozen breaths of time, he found a bridge that was invisible to the naked eye but could be detected by his spiritual will.

Although this bridge was made of a chain, the chain was not thin; it was as thick as an adult's thumb. The reason Mo Wuji hadn't seen it before was that the chain was almost colorless, completely blending into the space of the abyss.

No wonder the white-haired old man said "the one you can't see"; he really couldn't see this bridge with his naked eyes.

Almost at the instant Mo Wuji used his spiritual will, the white-haired old man suddenly raised his head and stared at Mo Wuji's back for a long time.

"Thank you, Senior." When Mo Wuji turned back to thank the white-haired old man again, the white-haired old man was already looking down, treasuring his wooden bucket.

Knowing that the other party would not speak, Mo Wuji thanked him once more and immediately stepped onto the invisible chain bridge.

Although the wind was strong in the abyss and the chain bridge was swaying, it was not difficult for Mo Wuji, who was already at the tenth level of Vein Opening.

However, the bridge seemed very long. Mo Wuji walked for nearly half an hour before reaching the other side.

On the other side of the chain bridge was a hexagonal pavilion, somewhat resembling an ancient long pavilion for seeing people off.

Passing through the long pavilion were rows of bluestone steps, which were very smooth and led to a magnificent palace.

Mo Wuji walked along the bluestone steps to the outside of the palace and saw a familiar face again, the red-clothed female cultivator who had taken him to see Granny Linglong.

"This Senior Sister, I want to see Yan'er..." Mo Wuji bowed and said very politely.

"Please come with me." The red-clothed female cultivator didn't even ask Mo Wuji any questions, nor did she say anything about reporting to Granny Linglong. She directly led Mo Wuji around the palace to a small pavilion surrounded by various spiritual herbs.

Mo Wuji had studied Formation Dao. At a glance, he knew that the small pavilion was surrounded by spiritual energy, indicating that there was a high-level Spirit Gathering Formation around it. Cultivating in this small pavilion was a hundred times better than in his Ding-level area.

"Greetings, Senior Sister." As soon as Mo Wuji arrived outside the small pavilion, he recognized the girl watering the spiritual herbs as one of the twins who had been by Granny Linglong's side.

"Alchemist Mo, are you here to see Yan'er?" The girl stopped watering the flowers and asked softly.

Mo Wuji quickly said, "That's right. Please, Senior Sister, inform her for me."

The girl hesitated slightly, and Mo Wuji could tell, "May I ask, is there something inconvenient?"

The girl bit her lip and said, "It's not that it's inconvenient, it's just that Granny has just healed Yan'er's spiritual meridians, and Yan'er is currently in closed-door cultivation. If Alchemist Mo must see her, I will immediately inform her for you."

"Yan'er's spiritual meridians are healed?" Mo Wuji asked in surprise.

The girl nodded, "Yes, Yan'er's spiritual root aptitude is very high. Now is the critical moment for her cultivation. If Alchemist Mo comes back in three months, she will definitely have passed this period. Of course, Granny also instructed us that as long as Alchemist Mo comes, he can see Yan'er at any time..."

"That's good, that's good..." Mo Wuji muttered several times, feeling his eyes moist. Yan'er had suffered for so long and finally had a new beginning. At this moment, Mo Wuji only felt deep gratitude towards Granny Linglong for saving Yan'er. As for whether Yan'er could recognize him, that was secondary. As long as Yan'er was fine, it didn't matter whether she recognized him or not.

"No need, let's not disturb Yan'er's closed-door cultivation. I'm leaving, I'll come to see Yan'er again later..." Mo Wuji replied, staring at the small pavilion for a long time before slowly turning around and walking away. He even had a premonition that the next time he came here, Yan'er and he would be strangers.

Until Mo Wuji's figure disappeared from sight, the other twin sister walked down from the pavilion. She looked in the direction where Mo Wuji had disappeared and sighed, "Danqi, aren't you being a bit too much? Granny instructed us to let Alchemist Mo see Yan'er as soon as he arrived, and also told us to let Alchemist Mo and Yan'er meet more often."

The girl called Danqi bit her lip and said, "Danxiang, Yan'er is at a critical moment in her cultivation right now. Granny is soft-hearted, but I'm really worried that Yan'er seeing him will make Granny's efforts come to naught. Do you remember how much effort Granny spent to save Yan'er, even her cultivation level has regressed a lot."

Danxiang fell silent. Danqi was right. If Yan'er's old illness relapsed and Granny had to save her again, Granny would probably suffer a great loss of vitality and find it difficult to recover.

"Alas, I'm worried that Yan'er's aptitude is too high. By the time Alchemist Mo comes to see her next time, she might have successfully built her spirit." Danxiang sighed.

Danqi lowered her head and didn't speak. Danxiang's worry wasn't a possibility, but a certainty. She was certain that by the time Mo Wuji came next time, Yan'er would have successfully built her spirit. Once Yan'er successfully built her spirit, all of her memories would disappear, and in her eyes, Mo Wuji would be a complete stranger.

It wasn't that she didn't want to help Mo Wuji, it was just that Granny really couldn't save Yan'er again.

...

When Mo Wuji returned, the white-haired old man fishing in the abyss was gone. Mo Wuji was in a low mood and didn't have the mind to care where the white-haired old man had gone or what kind of fish he had caught.

He didn't even feel like returning to the Outer Sect Peak and went directly to the Scripture Pavilion.

There were only two purposes for coming to the Scripture Pavilion: one was how to open the Storage Vein, and the second was how to build a spirit.

The Wentian Academy Scripture Pavilion had a total of five floors. Mo Wuji arrived at the entrance of the Scripture Pavilion, handed over his Outer Sect disciple identity jade token, and asked, "Excuse me, how many spiritual stones do I need to pay per day to read some cultivation-related scriptures?"

The manager at the entrance of the Scripture Pavilion was a man who looked somewhat mean. The man glanced at Mo Wuji and said coldly, "The Scripture Pavilion doesn't accept spiritual stones, only sect contribution points. One hundred contribution points per day for the first floor, three hundred contribution points per day for the second floor, one thousand contribution points per day for the third floor..."

"What about the fourth and fifth floors?" Mo Wuji quickly asked.

The man continued coldly, "Outer Sect disciples are not qualified for the fourth and fifth floors."

Mo Wuji left the Scripture Pavilion somewhat disappointed. He had no choice but to do sect missions now. If he didn't do sect missions, he wouldn't have sect contribution points. Without contribution points, he naturally wouldn't be qualified to go to the Scripture Pavilion.

All sects have one thing in common, and that is the Mission Hall. Although Wentian Academy stands above all sects and can be considered a comprehensive academy, the management here is still equivalent to a sect.

If Mo Wuji wanted contribution points, he had to go to the Mission Hall to accept points missions.