Ang's gaze remained fixed on the mysterious person. Over the past few days, he had discovered that the other party seemed to have noticed his Tracking, yet remained calm and unhurried, as though deliberately toying with him. This silent contest filled Ang with a faint unease and stubborn determination.
Whenever he followed the target into secluded streets and alleys, the person would vanish without warning, leaving Ang with almost nothing. Over the past few days, he had tried to analyze the methods the target might be using and ruled out invisibility potions—such potions had obvious resistance buildup and could not be used frequently for several consecutive days. After discussing it with Quintina, he concluded that the target most likely possessed a magical item, such as an invisibility cloak.
Having settled on a direction, Ang turned his attention to creating a magic detection device. It was an extremely tedious task, especially with the limited materials available. As he drew sketches, he carefully adjusted the detection range for magical fluctuations. After several days and nights of testing, the first-generation magic detection device was finally completed.
With the device in hand, Ang confidently resumed his Tracking. He followed the target closely, only to lose sight of him again as they turned a corner. This time, however, the device reacted. Its needle briefly shifted, but gave no clear indication of direction. Ang realized that the device was still not sensitive enough to capture the target's precise movements.
Unwilling to accept failure, Ang returned to the base and immediately improved the device. He continuously optimized its sensitivity and fluctuation range, even abandoning several secondary functions in order to maximize Tracking efficiency. A few days later, the improved device was finally put into use.
This time, Ang followed the target closely and once again watched him