Upon hearing the train police officer's words, Xia Wan's heart skipped a beat, as if an invisible hand had instantly gripped her heart.

However, just a moment later, she took a deep breath and forced herself to calm down.

She nodded slightly, a determined look on her face, and nodded vigorously, replying, "Okay, I'll take you there right away!"

After saying that, the two started walking quickly toward the third carriage.

Throughout the journey, Xia Wan's brain was working at lightning speed, like a high-speed machine, retrieving the scenes from her memory one by one.

As she walked, she meticulously recalled the exact location of the suspicious man and the surrounding environment in her mind, not daring to be negligent or overlook anything, lest she miss any crucial detail.

The train police officer following closely behind her remained highly vigilant.

His gaze was as sharp as a hawk's, revealing an alertness and focus that stemmed from his professional instincts.

His right hand unconsciously rested lightly on the black rubber baton at his waist, ready to react at the slightest disturbance and deal with any sudden emergency.

As they got closer to their target location, Xia Wan subconsciously slowed down.

She raised her hand, extended her index finger, and carefully pointed to a seat not far in front of her. Then she lowered her voice and whispered to the police officer next to her, "Look, it's right there... the empty seat next to that lady who was arguing fiercely with someone. She was just sitting there."

The train police officer nodded expressionlessly, then gestured to Xia Wan with his eyes for her to follow closely behind him.

So, the two of them casually and slowly approached their target seats.

However, just as they were about to reach their seats, they were surprised to find that the places where people should have been sitting were empty, with only a mysterious black package placed alone under the seats.

Upon seeing this, the train police officer's expression instantly became even more serious.

He walked past the seat as if nothing had happened, but in that instant, he subtly kicked the package under the seat.

With a slight noise, the train police officer became even more convinced of what Xia Wan had said earlier.

Then, he lowered his voice and asked Xia Wan beside him, "Young comrade, does that mean your seat is also in this carriage?"

Upon hearing the question, Xia Wan quickly turned her head to glance at the two people who were still arguing fiercely, and then replied, "No, my seat is actually in the carriage next to it. I just happened to pass by here on my way to the restroom."

After listening to Xia Wan's explanation, the train police officer nodded thoughtfully, then said to her in a low voice, "Okay, thank you, young lady. You can go back to your seat now. I'll handle things here. I need to report this to my superiors as soon as possible."

As soon as he finished speaking, the train police officer did not hesitate at all. He quickly turned around and strode towards both ends of the carriage with long, fast steps.

The train police officer's eyes were sharp and piercing, as if they could see through all obstacles. His keen gaze swept over every corner, leaving no stone unturned.

He carefully examined the facial details of each passenger, paying particular attention to those who appeared flustered or behaved abnormally.

At this moment, he was intently searching for the suspicious man with a conspicuous scar on his face, not daring to relax for a moment.

At the same time, the two people who were arguing noticed the arrival of the train police.

However, unexpectedly, the person who had just been aggressive and shouting that he wanted to report to the train police suddenly deflated like a punctured balloon, becoming listless and not even daring to stop the train police officer who was walking briskly forward.

On the other side, the skinny man, seeing this, hurriedly pulled a crumpled five-yuan bill from his pocket, shoved it into the woman's hand, and said menacingly, "That's all, take it or leave it!"

As soon as he finished speaking, he turned and left with a look of disgust on his face, his steps hurried as if he were afraid of being entangled by the woman and just wanted to get away from this place of trouble as soon as possible.

After witnessing this scene, Xia Wan did not rush back to her seat.

Instead, she carefully took a few steps back, keeping her attention focused on the place where the argument had just taken place.

Her eyes were fixed on the black package on the ground, and a strange sense of unease rose involuntarily in her heart.

This feeling grew stronger and stronger, making her feel that behind that seemingly ordinary black package, there seemed to be some unknown secret hidden.

She didn't know what dangerous items were in the package. If the man realized he was being watched by the train police and took extreme action, the consequences would be unimaginable.

She really couldn't understand it. Logically speaking, she was never the kind of person who liked to meddle in other people's business, but for some reason, she just developed a strong interest in that package.

What exactly is going on? Could there be some secret hidden in this?

After much hesitation, Xia Wan finally decided to follow her intuition.

Despite repeated instructions from the train police officer to return to her seat, she ignored them and resolutely chose to stay where she was to continue observing.

Just then, she keenly noticed a detail—a corner of a metal object was slightly peeking out from the edge of the package.

This small discovery made her heart race, because under the dim yellow light of the carriage, the metal object reflected a chilling glint.

Just then, a system notification sounded in his mind: [Host, a special energy item that can be used for system upgrades has been detected!]

Before the system finished speaking, Xia Wan suddenly looked up and saw that the man who had been hiding himself so well and whose whereabouts were so mysterious had returned.

"System, could the special energy item you just mentioned be hidden in that package?" Xia Wan asked in her mind, full of suspicion.

However, the system's response was ambiguous: "I cannot confirm at this time. Perhaps the host could try moving a little closer."

Hearing this, Xia Wan couldn't help but ponder to herself, "Get closer? But I was clearly standing right next to the package just now, and the system didn't react at all..."

Therefore, it seems that this matter may not be as simple as it seems.

Xia Wan began to look around, but unfortunately, she didn't find anything unusual.