Sensing a faint fluctuation of power, Yang Haoran's expression subtly changed, and the gaze upon the porcelain bottle in his hand underwent a slight transformation.
Since it could emit a power fluctuation, it indicated that this bottle was not as ordinary as it seemed; there must be some unknown secrets hidden within.
Considering this, Yang Haoran increased the infusion of Yin spirit power, hoping to see if the bottle would undergo any changes due to the enhancement of Yin spirit power.
Indeed, the bottle underwent changes. As more and more Yin spirit power infused into it, the emitted power fluctuation became stronger, but the enhancement rate was quite slow.
Moreover, apart from the gradual strengthening of the power fluctuation, the bottle showed no other changes; its interior remained empty.
Frowning, Yang Haoran found it challenging to determine the bottle's true function based solely on the slow increase in power fluctuation.
Helplessly, he decided to temporarily put away the bottle and carefully study it later. If possible, he hoped to find relevant information for reference. Only then could he truly understand the purpose of this bottle and how to use it.
After stashing the bottle into a separate space, what caught Yang Haoran's attention next was an ancient, tattered black book.
The books placed here by Deng Feng were obviously not children's books, and their worn appearance suggested otherwise.
Handling the black leather-bound book with care, Yang Haoran was cautious due to its extreme fragility. He worried that applying too much force might cause further damage.
Turning the pages carefully, which took a moment as the book was quite thin, Yang Haoran thoroughly examined the contents.
An intrigued expression appeared on his face because the book documented various secret techniques, all requiring Yin spirit power for execution.
However, Yang Haoran did not find any method similar to Deng Feng's alteration of the Death Mark Seal.
He didn't find it surprising, though. Changing the Death Mark Seal was a clandestine technique, and even in Deng Feng's residence, he wouldn't risk casually leaving such things around. It was akin to the crafting method of his soul-refining cauldron; would he dare to openly reveal it?
Certainly not, because exposing such things would inevitably lead to downfall. Yang Haoran understood this, and Deng Feng, being no fool, would grasp it as well.
Although he didn't discover the secret technique for altering the Death Mark Seal, Yang Haoran felt no disappointment since he wasn't particularly interested in it.
While the black book had limited secret techniques recorded, Yang Haoran found them quite beneficial. If practiced entirely, they would only bring advantages without drawbacks.
Among the numerous books in the study, were there any of the types he liked and needed?
For the sake of expanding his knowledge, Yang Haoran had borrowed books from Master Jiang and Wang Yiming. It was evident that he had a strong liking and thirst for these books.
As a member of Night Watch, Deng Feng's collection should have many books that Yang Haoran needed. Realizing this, after initially leaving the study, Yang Haoran turned back and checked every book in the study.
The results pleased him. Except for a few explicit materials and some ordinary books, the rest were precisely the types Yang Haoran needed, and the quantity was not small.
For him, this was also a significant gain. In his eyes, the value of these books far surpassed that of the few treasures enhanced with Yin spirit power.
Because of this substantial harvest, when Yang Haoran walked out of the study again, a satisfied smile adorned his face.
Outside the study, all the women were immobilized by Yang Haoran's Yin spirit power. Unable to move even their fingers, they had no means of escape.
Seeing Yang Haoran leave the study, the expressions on the women's faces varied. However, due to the suppression of Yin spirit power, they couldn't make any sounds. They could only use their eyes to express their thoughts, hoping that Yang Haoran could understand.
Yang Haoran, of course, noticed the expressions and different gazes on the women's faces. However, he had no intention of wasting time chatting with them. The awkwardness from before was still fresh in his memory, and he didn't want a repeat of such a situation.
Moreover, his purpose for this visit had been achieved, and there was no need to continue wasting time on a few ordinary women.
Under the various expressions of the women, Yang Haoran walked towards them. Some thought he was going to silence them permanently, showing fear on their faces. Others believed that since Yang Haoran had achieved his goal, he would prepare to let them go, and excitement flashed in their eyes.
However, Yang Haoran's actions were entirely different from what they imagined. He neither immediately killed the women nor set them free. Instead, he decisively used his power to erase all memories of the day from their minds.
As their memories were abruptly wiped away, the women fell into a state of unconsciousness, collapsing limply to the ground. After confirming that they were genuinely in a state of unconsciousness, Yang Haoran withdrew the Yin spirit power restraining them. Then, tearing through space, he left Deng Feng's villa.
These women had no grudges against him, so Yang Haoran had no intention of harming them or taking their lives.
Of course, he wouldn't be kind enough to arrange their futures. He had no obligation or interest in doing so.
Although Deng Feng, the benefactor, was dead, these women were all adults. If they couldn't even figure out how to survive in this world, then their deaths were not a great loss.