The "Turtle Breathing Technique" mentioned by Zhong Shenxiu was a method of breath control, the greatest benefit of which was allowing one to hold their breath for extended periods—the perfect skill for freediving or setting an ambush.

The "Turtle Breathing Technique" was not overly difficult; anyone with a foundation in internal energy could achieve some proficiency quickly, boasting the characteristic of "less investment in time, quicker results." However, the true difficulty lay in mastering the advanced levels; those with weak wills or insufficient power shouldn't even bother dreaming about it.

While gathering herbs, Zhong Shenxiu shared the secrets of the "Turtle Breathing Technique" with Robin, detailing all the key points and necessary precautions.

Once Robin achieved minor proficiency, all she had to do was hold her breath and plunge into the water; it would be hard not to learn how to swim.

"Robin, let's head back! It’s going to rain soon," Zhong Shenxiu suddenly said to Robin, who was currently following his instructions to collect medicinal herbs.

Robin looked up at the sky. The sun was bright; there was no indication of rain. Had she misheard?

"Stop dawdling. If I say it will rain, it will rain," Zhong Shenxiu insisted, turning back to her. "Reading the sky is not something you can learn in a moment; I will teach you slowly when we have time later."

From the depths of her heart to her very soul, Robin was completely in awe of Zhong Shenxiu. She considered herself a quick and diligent learner, yet the knowledge he possessed was always endlessly strange, extraordinarily practical, and there always seemed to be so much more to learn! Sometimes, Robin wondered if she could ever learn everything her Master knew in one lifetime. Regarding this question, she suddenly lost all confidence.

If she couldn't learn it in this life, she would follow her Master into the next one! Thinking this, Robin suddenly laughed happily.

Events proved Zhong Shenxiu was not wrong. Shortly after they returned to the cabin, the sky began to cloud over thickly, and soon, a torrential downpour erupted.

The rain was extremely heavy, and judging by the look of things, it wouldn't stop anytime soon. Taking advantage of the lull, Zhong Shenxiu began teaching Robin the profound and inscrutable art of "Reading the Heavens."

He started with the most fundamental elements, then gradually moved from the shallow to the deep through practical examples, causing Robin, sitting nearby, to nod her head repeatedly in understanding.

Robin hadn't expected the knowledge involved to be so vast. Take the current rain, for example: one had to consider climate, surrounding humidity, wind direction, wind speed, the reactions of animals and plants, the sun's temperature, the sun's angle, and many other factors combined before drawing the conclusion that rain was imminent.

Little did Robin know that the reality was far more complex than her understanding suggested; one had to consider the principles of the Five Elements, and even the influence of the constellations—Zhong Shenxiu had greatly simplified the factors just to make it easier for her to grasp.

The study of celestial phenomena was deeply involved and could not be mastered overnight. Even for Zhong Shenxiu now, he had only grasped a tiny fraction of it.

Since the topic of the heavens had been raised, Zhong Shenxiu took the opportunity to briefly introduce the art of "Qimen Dunjia" to Robin, covering it in a general, superficial manner, perhaps serving as a rudimentary foundation for teaching her more advanced concepts later.

To spark Robin’s interest and allow her to understand more thoroughly, Zhong Shenxiu used several stones to set up a small, rudimentary sound-insulating formation. (Due to his current lack of magical power, Zhong Shenxiu could only manage small formations.)

As soon as Robin stepped inside the formation, she immediately felt that she could hear nothing other than the sound of her own heartbeat and breathing. When she stepped out, everything returned to normal. After trying several times, the result was always the same.

This was utterly miraculous! Robin's curiosity was instantly piqued, and she insisted Zhong Shenxiu teach her how to set up this sound-insulating formation.

Zhong Shenxiu shook his head and regretfully told her she wasn't ready to learn it yet; this particular study wouldn't show results for at least three to five years.

Though Zhong Shenxiu casually picked up a few stones and arranged them into a sound barrier, how could one know the depth of knowledge contained within?

Not only did the orientation have to be precise, and the timing perfectly grasped, but the local terrain also played a decisive role. Only after comprehensively considering multiple factors could the sound-insulating formation be established. If one were to set up a large-scale formation, the considerations would be even more numerous, and accurately controlling the flow of magical power alone was not something easily achieved.

Fearing he had discouraged Robin too much, Zhong Shenxiu quickly said to her, "Learn slowly; you are still young!"

Perhaps even Zhong Shenxiu himself did not realize that this very lesson planted the seed for Robin’s future diligence and rapid progress, causing her to soon become one of his most capable assistants.

Everyone understands the principle of the 'slow bird catching the worm first,' but have you ever considered what the concept of the 'swift bird flying first' implies? Robin was like an incomparably intelligent little bird, spreading her wings earlier than all the others.

How high a person can climb is determined not by their hands, but by their perseverance; how far a person can travel is determined not by their legs, but by their ambition!

Robin's sheer willpower must already be evident from the pain she endured; now, a vastly grand ambition had taken root in her heart (to study diligently under her Master, making progress every day). We can only imagine the radiance of her future prospects.

To avoid placing too great a burden on Robin's studies, Zhong Shenxiu stopped teaching for the day; today’s lesson was merely an introduction.

Afterward, Zhong Shenxiu began chatting casually with Robin, asking her questions about this world. After all, Robin was a native, and she knew far more than he did.

Zhong Shenxiu posed numerous, varied questions: what was the name of this world, which country governed it, what were the famous scenic spots, what were the common religious beliefs, what races inhabited the human sphere, how was the education system structured, what sects existed, how complete were public amenities, and what was the general standard of the populace? Robin was so overwhelmed by the questions she didn't know how to answer half of them!

In truth, Robin didn't know much herself.

Although Robin couldn't answer many questions, Zhong Shenxiu still gained some valuable insights. He learned a piece of information that greatly interested him: this world actually contained numerous races he had never heard of, such as Dwarves, Elves, and Beastmen, and it was rumored that each race possessed unique physical traits and special skills.

For Zhong Shenxiu, the obsessed researcher, this information was overwhelmingly compelling. He decided that once he mastered the second level of his "Xuanwu Jue" and possessed sufficient self-preservation skills, he would definitely travel this world to thoroughly investigate the origins and evolutionary history of its species.