I can see experience bars after being transported to another world.

When she saw Lu Yuan come in, she took a few steps forward and looked up at him.

"Hey, you're Lu Yuan? You're the new recruit in our group that the Knight of the Lantern mentioned? Show me your badge."

Lu Yuan looked at the somewhat fierce-looking girl in front of him, but didn't pay her any attention. He simply handed her his badge.

The girl took the badge, glanced at it, and her brows relaxed a little.

"Huh? Two intermediate certifications?"

She looked up again and stared at Lu Yuan for a moment. "Did you go to see the Grand Knight Commander of Rock?"

Lu Yuan nodded, confirming that he had indeed participated in the mission of the Grand Knight Commander of Rock.

The girl pouted helplessly, "No wonder it took me so long to wait."

She tossed the badge back to Lu Yuan, introduced herself as Frey Blanc, and explained her identity: she was the leader of the group, and that everyone had to follow her instructions for this mission, except for consulting the Knight of the Lantern.

"Come with me."

Frey stopped worrying about these things and led Lu Yuan into the large room.

This room was clearly much more comfortable than the one with the eerie inscription, at least it looked more like a place to live. A huge steam pipe stood in the corner, its walls radiating warmth. The room was covered with a red and gold carpet, and flowers were placed in the corner. Two large leather sofas enclosed a small rest area. The layout was very open, with only the two rooms in the corner having doors; the rest were all open.

Lu Yuan even saw what looked like a book corner, with many books on the shelves in that corner.

"So you're the only one in pharmacy right now?" Lu Yuan asked with some curiosity.

Frey rolled her eyes at Lu Yuan, annoyed. "What do you think? Not everyone is willing to wait for you. Besides, the time for our reverse engineering here is not fixed. Potions aren't like cabbages; you can't just make them whenever you want. Moreover, the pollution from reverse engineering heretical potions is very strong, so our research time each day is not long, and we are divided into several shifts. Although we can conduct research at night, we have to be extra careful, so there are basically no people around at night."

Frey glanced at Lu Yuan with some disdain and continued leading him inside. "If it weren't for my new discovery today, and the Knight of the Lantern's instructions, you wouldn't even be able to see me."

Lu Yuan touched his nose and followed behind without saying a word.

"There are places to rest here, as well as facilities specifically for testing sanity." Frey pointed to the lamp hanging on the wall. "If this lamp turns yellow or red, it means someone's sanity is on the verge of danger, and we need to be extra careful then."

Lu Yuan looked in the direction she pointed, and saw that the lamp was shining with a steady white light.

"See those two doors?" Frey pointed to the two oval doors further inside.

Indeed, there were no equipment or medicinal materials needed for pharmacology and reverse engineering in this room. It seemed that the real work location should be behind those two doors.

"The one on the left is for deciphering the potions used by the heretics. Among them are potions for concealing one's presence, as well as potions used to release plagues. They are not that dangerous to us."

"The one on the right is the modification potion used by the heretics, the pathway mutation potion." Frey paused in her steps. "After taking this potion, it will increase the compatibility of one's pathway to a certain extent for a period of time, and it can also restore one's energy very effectively."

"But after that, your pathway will inevitably turn to heresy. This is the most troublesome type of potion we've encountered so far. And so far, we haven't figured out why this potion can directly turn a person's pathway to heresy. So theoretically, this kind of potion shouldn't exist."

Lu Yuan noticed that when Frey said this, her brows were tightly furrowed, and her small face showed a hint of fear and disgust.

But that's normal; nobody wants to drink a potion and then have their path forcibly twisted into heresy.

"Wait a minute." Lu Yuan suddenly realized something. "You mean, it's possible to transform a person's path from their original one to a path of faith?"

Frey nodded.

"Is it that terrifying?" Lu Yuan frowned. This meant that drinking this potion could not only change a person's path, but could even completely transform a person's beliefs and thoughts into heresy. If someone accidentally drank a bottle, wouldn't they be doomed?

"Does it have any limitations? For example, is its effectiveness relatively weak against fourth-tier beings?"

Frey sighed upon hearing this. "Of course there are limitations. It's more effective for those below the fourth rank, but its effect is very weak, or even negligible, for those above the fourth rank. However, judging from the current situation, it seems there's more than just the batch we've obtained; there's an even more terrifying one. According to intelligence, that one should theoretically have some effect on the fourth rank as well."

Lu Yuan's heart sank. If it had an effect on fourth-tier cultivators, then it was no longer a potion; it was more like a curse.

"How could there be such a potion?" Auden's voice rang in Lu Yuan's mind, also filled with doubt. "A person's path is their foundation. Even if they eat something strange, it's impossible to change their own path unless they take a forbidden bite."

Oden muttered to himself, then suddenly realized something. "Hey, Lu Yuan, I think I've figured it out. That's why just drinking a bottle of potion can change a person's life."

"Really?" Lu Yuan asked in his mind.

"As far as I know, the only ways to change a person's path, besides voluntary change, are to take a bite out of taboo."

"Wait a minute." Lu Yuan frowned. "Even if you take a bite of the forbidden thing, theoretically, this shouldn't happen, right? Given the corrupting nature of the forbidden thing, taking a bite of its flesh would most likely not reverse your path, but kill you outright. Even if it could corrupt a person's thoughts and will, it would take a period of time, and it would require contact with the original body."

Of all the taboos Lu Yuan has encountered so far, the only one that he feels can forcibly distort a person's path seems to be the one that caused Grim Harbor to sink, because when that being appeared, everyone's body underwent a change.

Apart from that, neither the offspring associated with the taboo that was seen on the island, nor the person on the wall that was seen later, nor the newly born Crown of Kings, had the ability to directly change the path.

They do have a certain degree of influence, but judging from their current performance, Lu Yuan at least doesn't see how they can change a person.

Furthermore, forbidden flesh and blood cannot be dissolved in ordinary medicine, and the obvious contamination and abnormality should be obvious to anyone with eyesight.

“You’re absolutely right,” Oden continued. “Normally, this kind of thing is almost impossible because the forbidden body structure, its blood and tissues are things that ordinary people can’t understand. Let alone drinking it, even contact with it would have a noticeable contamination effect. So, storing these things directly in a potion would most likely result in someone not drinking it.”

"However, there is a special taboo, and there is a very slight possibility, such as a taboo that the body is composed of a certain kind of fungus. Normally, the hyphae of this kind of taboo are similar to its offspring. If such a thing is combined with a medicine, it is not impossible. However, theoretically speaking, the taboo that the Xiu Rong Society believes in should not be a hyphae-based taboo, because such taboos are very, very rare."

Mycelium? Lu Yuan had indeed never seen similar mycelium before.