Half a month later.

"Elder Miezui, this is the jade slip you wanted." Qiu Changtian descended lightly from the upstairs and handed the jade slip to Elder Miezui of the Criminal Law Hall.

"Yes." Elder Mie Zui showed a kind smile, "Thank you for your hard work, Chang Geng."

The Kunlun disciples passing by quickly avoided the scene by covering their faces with their sleeves as if they had witnessed an amazing spectacle.

Doesn’t the Criminal Law Hall’s Sin-Slaying Elder always have a cold face that is intimidating even without being angry, and doesn’t treat anyone kindly when he meets them?

If you think about it carefully, the person opposite is Chief Qiu! Then it's okay.

Although Qiu Changtian has already formed a pill and was awarded the Taoist title of "Chang Geng Zhenren", the disciples in the Foundation Establishment Realm still like to call him "Chief Qiu" in private.

This gives me a sense of honor and pride, as if I had known him since he was the chief.

Qiu Changtian sent the Elder of Mie Zui away and returned to his original position. He placed the Thunder Hammer and the Thunder Cone together under the table and gently touched them together.

There were tiny silver-white arcs of electricity jumping lightly from the surface of the Thunder Cone.

After collecting the hammer and cone, Qiu Changtian will be able to use this pair of thunder-generating instruments to carefully comprehend the method of practicing Taixiao Thunder.

The ninth thunder among these ten thunders is extremely obscure to learn.

Even though he possessed a gifted mind of enlightenment and could concentrate on reading and comprehending various classics, it was strange that he made no progress at all in learning Taixiao Lei.

At noon, Xu Yinglian came to the Sutra Repository as scheduled - but she was not there to have lunch with him. She just happened to have finished giving a lecture to her fellow junior students and came to see her husband.

"Don't you have any idea about your thunder magic?" Xu Yinglian asked when he saw him playing with the pair of hammers with a frown.

“Alas.” Qiu Changtian shook his head. “I suspect that perhaps one must reach the Nascent Soul stage before one can comprehend the last three thunders.”

"Don't worry too much about the Thunder Method." Xu Yinglian sat down beside him and said in a gentle voice, "This Thunder Method is too obscure, so it's normal that it's difficult to learn."

Her voice paused for a moment, and then she said casually:

"I have almost mastered the bloodline magical power left by my ancestor Feng Tong, hehe."

Qiu Changtian: ...

Having been with his junior sister for so many years, how could he not understand the subtext of what Junior Sister Xu said just now?

"When I reach the Golden Core stage, you might not be my opponent!"

I'm sorry, Sister Xu, but that's impossible. Unless I let you go...

He was about to tease his junior sister with a smile when he suddenly heard a voice from the side:

"Chang Geng? Sorry to bother you."

"Oh, Senior Sister Su Ling." Qiu Changtian stood up quickly, "Do you want to borrow some book?"

Master Su Ling shook his head, sighed and said:

"My inner sect junior brother Qiu has disappeared recently. Has junior brother Chang Geng seen him?"

"I've seen him a few times." Qiu Changtian nodded and said, "Junior Brother Qiu has been coming to the Sutra Library to read books recently, but I didn't see him yesterday or the day before yesterday."

"Alas." Master Su Ling sighed and said, "I asked around and found out that there was nothing unusual about him before he disappeared. He also didn't go out with other brothers and sisters. No one knows why he suddenly disappeared."

"So that's how it is." Qiu Changtian understood. "Senior Sister Su Ling wanted to confirm whether Junior Brother Qiu had read those classics recently and found some clues about the immortal ruins in them, so he rashly went out to explore alone?"

"That's right." Master Su Ling nodded and said, "I just don't dare to bother Junior Brother Chang Geng too much. Master doesn't have too much hope for this, Junior Brother, just confirm it when you are free."

Qiu Changtian knew that this was because Master Su Ling didn't want to owe him too many favors.

After all, no matter who the Huafu-level disciple is from, in order to form a top-grade golden elixir, one must accumulate at least two hundred years of Huafu cultivation.

Therefore, going out to look for the Purple Mansion Secret Medicine is also a must for those who have reached the Huafu Stage.

If Junior Brother Qiu went to explore some immortal ruins and didn't tell anyone before leaving, who would be able to find out where he went afterwards?

Therefore, Master Su Ling's sect just took the attitude of doing their best and leaving the rest to fate, and did not want to trouble Qiu Changtian too much with this matter.

After the senior sister left, Xu Yinglian sighed and said:

"Although I can understand that, Junior Brother Qiu is too arrogant. Since this is a ruin that has never been explored, you shouldn't go alone. At least bring a fellow disciple with you."

"Junior Sister Xu, this is what you don't know." Qiu Changtian shook his head. "How precious is the Purple Mansion Secret Medicine? Even if they are fellow disciples, in that unknown ruins, facing the precious Purple Mansion Secret Medicine, the possibility of killing each other cannot be ruled out. Junior Brother Qiu chose to go alone, and did not reveal any clues to anyone before leaving. This is a cautious performance."

Junior Brother Qiu's behavior is commonplace among mortals who practice Taoism.

If you get any clues about the treasure, or even tell others a word, you will be criticized by a bunch of readers - after all, everyone wants to see the protagonist get all the benefits.

It’s not wrong to think so, it’s just that Junior Brother Qiu is not strong enough to deal with the dangers in the ruins independently.

Since he went alone, there was no one to help him when he was in danger.

Qiu Changtian thought to himself, stood up, and wanted to check the book borrowing records in the Sutra Library during this period.

When Elder Xu was here, although there was a book with borrowing records in the Sutra Library, basically no one voluntarily registered.

Fortunately, Qiu Changtian is a cautious person (how can he not be cautious when he is a spy?). If a disciple in the Foundation Establishment Realm wants to borrow a book to go out, he must ask the other party to leave his name and the title of the book. Therefore, he can find clues about Junior Brother Qiu.

After flipping through the scriptures for a while, he stared at the surface of the scriptures and his brows furrowed slightly.

"What's wrong?" Xu Yinglian asked curiously, "No records?"

"No." Qiu Changtian shook his head and said with a puzzled look, "Junior Brother Qiu has been borrowing a certain book since half a month ago."

"According to the rules of the Sutra Library, Foundation Establishment disciples can only borrow classics for three days, and then they must return them or renew the loan."

"Junior Brother Qiu registered it five times, which means he renewed the loan five times."

"Five times?" Xu Yinglian was also surprised. "What book is it?"

"The title of the book is..." Qiu Changtian hesitated for a moment, "Mirror Flower, Water Moon."

"'Mirror Flower, Water Moon'?" Xu Yinglian said, "I've read it before at Xu's house, but it's a travelogue of an immortal that's disguised as a novel."

"But this book is not an out-of-print copy. You can buy one for twelve copper coins in the market outside. Why does Junior Brother Qiu have to come here to borrow it five times?"

"There must be something fishy going on here." Qiu Changtian said in a deep voice, "I saw the record. The last time Junior Brother Qiu brought the book back, he didn't lend it out."

"That is to say, the copy of 'Flowers in the Mirror and Moon in the Water' must still be in the Sutra Repository." Xu Yinglian said with a faint smile.

"Junior sister, will you come with me to see it?"

"good."