Under Marcus's careful guidance and persuasion, both Bruce and Selina had begun dedicating themselves to serious academic study with newfound dedication and purpose.
Although both students had maintained good grades in their previous educational experiences, they had never developed the deep, comprehensive understanding that would be necessary for their long-term mission. Now they were finally beginning to study various fields of knowledge with genuine depth and analytical rigor.
Perhaps because their individual growth paths and personal interests were naturally different, the learning directions that Bruce and Selina chose diverged significantly from each other.
In his intensive studies, Bruce's primary objective was developing the knowledge and skills necessary to fundamentally change Gotham's current situation. He approached different academic disciplines with the specific goal of understanding how various types of knowledge could be applied to benefit Gotham and its citizens.
Bruce was systematically studying criminology, urban planning, economics, political science, psychology, forensic science, and numerous other fields that would eventually make him an effective detective and strategic thinker.
Selina, however, had maintained her original interests and motivations from her earlier life experiences.
She remained fascinated by precious metals, gemstones, geography, history, and cultural studies—these were the academic areas that captured her attention most completely. When studying these subjects, she displayed remarkable focus and genuine enthusiasm for learning.
Her interests weren't merely academic curiosity; they reflected her desire to understand valuable objects, hidden treasures, and the historical contexts that made certain artifacts particularly significant.
As both students became more absorbed in their educational pursuits, the frequency of their nighttime patrol activities began decreasing gradually. They transitioned from conducting operations every single night to limiting their vigilante work to once or twice per week.
Instead of constant action, they chose to focus on learning and enriching themselves through comprehensive study of various knowledge domains that would serve their long-term objectives.
During this intensive study period, both Bruce and Selina also gained new perspectives and understanding regarding their own abilities and potential for future development.
Through several months of dedicated academic work, they began to see connections between theoretical knowledge and practical applications that had never occurred to them before.
One afternoon in Wayne Manor's well-appointed study, Bruce—who had been deeply absorbed in reading a technical manual about materials science—suddenly set down the book in his hands and looked up at Selina, who was studying gemological charts and mineral composition data at the opposite end of the large oak table.
"I've been thinking," Bruce began with obvious excitement about a new idea. "If we could make the energy we attach to our weapons generate high-frequency vibrations, our power would be dramatically improved."
"High-frequency vibrations?" Selina asked with immediate interest, setting aside her own studies. "Tell me more about that concept!"
Selina typically wasn't particularly interested in the technical specifications and mathematical formulas that Bruce often studied, but she was genuinely fascinated by anything that could directly enhance their combat capabilities and effectiveness as vigilantes.
"I've been reading about high-frequency vibration weapons and their applications," Bruce explained with growing enthusiasm. "These devices can affect materials at a much deeper molecular level than conventional weapons. Even an ordinary iron sword can cut through reinforced steel like soft clay when subjected to proper high-frequency vibrations."
Bruce paused to organize his thoughts before continuing his explanation.
"But we don't actually need specialized high-frequency vibration weapons," he continued with obvious excitement about the possibilities. "We could potentially make our own energy vibrate at high frequencies, which would mean that any object we pick up could be transformed into an incredibly effective weapon!"
Even as he articulated this ambitious concept, Bruce understood how technically challenging such an application would be. After all, the two of them were currently only capable of maintaining basic energy attachment to their weapons for extended periods.
Achieving controlled high-frequency oscillation of their energy would require significant advancement in their Zenurik school techniques and much more sophisticated energy manipulation skills.
"It's definitely an intriguing idea," Selina responded thoughtfully, "but are you confident that such an approach would actually work in practice?"
If this theoretical method was genuinely feasible, then the investment of time and effort would certainly be worthwhile. However, if the concept proved impractical or impossible to implement, they would essentially be wasting valuable time that could be spent on other forms of improvement.
"There's really only one way to find out for certain," Bruce said with a decisive nod. "Let's ask our teacher. Marcus should be able to tell us whether this is possible."
Whenever Bruce and Selina encountered problems or concepts that exceeded their current understanding, they naturally turned to Marcus for guidance and clarification. Since Marcus was currently residing at Wayne Manor and always available for consultation, it made perfect sense to seek his expert opinion on technical questions.
Marcus, who had been relaxing comfortably in a rocking chair on the manor's covered porch, looked up at both students with obvious interest and amusement after hearing their carefully formulated question.
"Very interesting indeed," Marcus said with approval. "It seems that you haven't been wasting your time during this study period. The fact that you've thought of using this particular method to enhance your abilities shows genuine analytical thinking."
Bruce's theoretical concept was definitely achievable, Marcus knew. High-frequency energy vibrations were certainly possible to generate and control, and since Bruce had independently developed this idea, it demonstrated that his recent academic work was producing valuable insights.
"So you've both come to me to verify the feasibility of high-frequency energy vibration techniques?" Marcus asked with encouraging interest.
"That's exactly right, teacher," Bruce confirmed earnestly. "During this period of intensive study, I've discovered that we still have enormous potential for improvement in many different areas. I plan to continue researching other applications, but regarding this specific concept of high-frequency energy vibration, I need to know whether it's actually possible before investing significant time and effort."
Both students looked at Marcus expectantly, waiting quietly for their teacher's expert assessment and guidance.
Based on Marcus's obviously positive reaction to their question, they were increasingly confident that their theoretical approach might indeed be feasible.
"Go break off a branch for me," Marcus instructed with the tone of someone preparing a practical demonstration.
Following Marcus's direction, Bruce selected and carefully broke off a branch that was full of fresh green leaves from one of the garden's trees.
Offering the branch respectfully with both hands, Bruce looked at Marcus with obvious curiosity about what would happen next.
"Teacher, what do you need this branch for?" Bruce asked with genuine interest.
"For a demonstration, of course," Marcus replied with an educational smile. "I'm going to show you exactly what high-frequency energy oscillation looks like when properly applied."
As soon as Marcus finished speaking, the originally vibrant green branch became instantly surrounded by swirling void energy that seemed to pulse with its own life.
At the moment when the void energy was released and activated, both Bruce and Selina immediately felt an overwhelming sense of threat and power. Having progressed significantly in their Zenurik school training, their sensitivity to energy had become remarkably precise and acute.
Perhaps they hadn't been able to fully appreciate the magnitude of Marcus's abilities in the past, but now they could clearly sense the tremendous oppressive force emanating from his void energy manipulation.
"Observe carefully," Marcus said as he prepared his demonstration. "This is the result you wanted to verify."
While speaking, Marcus casually dragged the energy-wrapped branch across the solid ground, and a deep, perfectly straight groove appeared instantly in the earth.
If they hadn't witnessed this demonstration with their own eyes, neither Bruce nor Selina would ever have believed that such precise cuts could be made in solid ground using nothing more than a tree branch.
"Do you see the effect?" Marcus asked with obvious satisfaction at their amazed expressions. "This is what you're calling energy high-frequency oscillation, but in practical terms, it should look something like this."
While speaking, the branch wrapped with energy in Marcus's hand suddenly began flickering and pulsing with incredible intensity.
The energy surrounding the branch moved like an ocean tide, surging in powerful waves that created visible distortions in the air around the improvised weapon.
After observing the energy-wrapped branch in Marcus's hands, Bruce finally developed a clear understanding of how to approach practicing high-frequency energy oscillation techniques.
His original plan had been to simply shake the energy back and forth in an attempt to achieve some form of vibrational effect.
However, the sophisticated energy manipulation that Marcus was demonstrating provided Bruce with entirely new inspiration and direction for his research.
Bruce understood that he and Selina's current energy capabilities weren't nearly as developed as Marcus's abilities, and it would probably take many years of dedicated practice to reach their teacher's level of mastery.
Therefore, Bruce decided to focus on learning the specific techniques that Marcus was demonstrating, attempting to make his own energy pulse and surge in continuous waves. Through this method, he hoped to achieve at least a basic form of high-frequency energy vibration.
"I understand the principle now," Bruce announced with excitement. "Selina, come help me experiment with this!"
Bruce, his mind already racing with practical applications and testing ideas, was eager to begin experimenting with his new theoretical understanding. Although their energy wasn't nearly as powerful as their teacher's abilities, they should still be able to create pulsing energy waves using similar techniques.
Both students each selected and broke fresh branches from the garden trees, then carefully covered their improvised weapons with thin layers of their personal energy.
However, their individual approaches and results were noticeably different. As usual, Selina simply covered her branch with a steady coating of energy, using the power enhancement to increase the destructive potential of her makeshift weapon.
Bruce's technique was distinctly different. Although his energy was also covering the branch, observers could clearly see energy waves surging and pulsing along the length of the wood.
This represented the absolute limit of what Bruce could currently achieve. The surging energy patterns on his branch were his attempt to imitate the sophisticated techniques that Marcus had demonstrated.
The pulsing energy represented Bruce's interpretation of "high-frequency oscillation," though the speed of his current oscillation was admittedly quite slow compared to what would eventually be possible.
"Let's test this and see what kind of effect my pulsing branch technique can produce," Bruce said with anticipation.
As soon as he finished speaking, both differently enhanced branches collided with each other. Initially, both weapons appeared similar since they were both covered with energy enhancement.
However, Bruce's branch contained concentrated, continuously surging energy that suddenly erupted at the moment of contact. Within an instant, the pulsing force completely overwhelmed Selina's steady energy coating and knocked her branch aside with surprising force.