Starting from the destruction of the Land of Light

Bogaru's appearance did indeed disrupt Zhang Chen's plans.

At least before the attack, he had no idea that Bogaru existed.

Fortunately, he was quick-witted enough to use some clues from his past life to barely prevent Bogaru from continuing to attack him, and even reached a cooperative relationship with him.

Although Zhang Chen understood that cooperating with someone like Bo Jiaru was extremely dangerous, bringing her into the picture was a last resort. However, on the other hand, perhaps she could help him.

Looking at the sky, which was now completely dark, Zhang Chen sighed. It seemed he wouldn't be able to get a good rest tonight.

Shaking his head, Zhang Chen took out his phone and dialed a number.

Immediately afterwards, Luo Xi's voice came from the other end of the phone.

(What's wrong?)

Zhang Chen took a deep breath.

"The plans have changed. Come pick me up."

...

Late at night, the headquarters of the Earth Defense Force was still brightly lit.

The analysis team's laboratory is like a sleepless lighthouse, one of the few stubbornly burning lights in this world shrouded in the shadow of monsters.

The air was thick with the smell of caffeine, the burnt smell of overheated electronic components, and an invisible, suffocating fatigue.

The monsters are appearing more and more frequently, and their attacks are becoming increasingly deadly. The researchers' eyes are sunken, their faces are pale, and their fingers tremble almost imperceptibly as they type on the keyboard.

Physical exhaustion can be overcome with willpower, but the immense psychological pressure of witnessing a city turn into ruins under the monster's feet and the instantaneous loss of one's compatriots' lives, yet being powerless to do anything about it, weighs on everyone's heart like a heavy lead weight.

This pressure doesn't just belong to the laboratory.

The atmosphere in the action team's lounge at the end of the corridor was equally somber.

The failure of the last operation made these best young team members feel extremely guilty. As a result, they could only channel that energy into training, as if that would allow them to get a good night's sleep.

However, amidst this oppressive atmosphere, an irrepressible excitement was spreading within the core laboratory of the analysis team.

Tang Yu, the leader of the analysis team, was standing in front of the huge main screen. The screen was no longer filled with the chaotic and despairing monster energy fluctuation pattern. Instead, it displayed a clear, stable waveform that presented a strange but highly regular pattern.

Her face was equally haggard, and long-term lack of sleep had left her with dark circles under her eyes, but her bloodshot eyes were surprisingly bright.

"It's done...it's finally done..." a young researcher muttered to himself, his voice trembling with disbelief.

He pointed to a frequency that was highlighted on the screen.

"This is it! The 'noise' layer that we had been overlooking, the layer that was masking the core signals attracting the monster, has been completely analyzed!"

The numb fatigue on the faces of several colleagues who were also gathered around the computer was replaced by an almost ecstatic excitement.

They pointed at the data on the screen, exchanging technical terms at a rapid pace, their fingers clicking quickly on the virtual keyboard to bring up comparison data, each verification making their eyes even brighter.

In just a few days, the almost self-torturing repeated experiments, comparisons, modeling, failures, and restarts... all the sweat, anxiety, and despair seemed to find an outlet at this moment.

Tang Yu took a deep breath, suppressing the equally surging excitement in her chest.

Instead of immediately joining her colleagues' discussion, she turned around and said in an unusually calm but undeniably powerful voice, "Xiao Chen, immediately connect to the command center's office, using the highest priority encrypted line. Uncle Liu, prepare the final analysis report, package all key data..."

"We...have something to report."

The command was executed swiftly.

A few minutes later, a document marked "Top Secret Breakthrough: Complete Analysis Report of the Mysterious Wavelength" was delivered directly to the desk of the Earth Defense Force's Supreme Commander through the most secure channel.

The message spread faster than expected.

The heavy alloy laboratory door was suddenly pushed open with a loud bang.

A figure in a dark blue combat uniform practically burst in; it was none other than Wang Kui, the action team leader.

His face bore the marks of travel, and his combat uniform still had some dust and the smell of gunpowder that hadn't been cleaned off, clearly indicating that he had just come from the training field.

His thick eyebrows were furrowed, and his eyes, sharp as a hawk's, swept directly toward Tang Yu in the center of the laboratory, carrying the urgency and a hint of barely perceptible anxiety characteristic of frontline personnel.

"Xiao Tang," Wang Kui's voice boomed. "Is what the report said true? You guys took care of that bastard?"

He strode over, his gaze fixed intently on Tang Yu, as if trying to read the answer directly from her face.

Tang Yu met Wang Kui's eager gaze, and she turned to the side, pointing to the huge main screen.

On the screen, the strange, completely stripped-down wavelength spectrum was slowly fluctuating in a highly regular manner, while the dense stream of data beside it refreshed like a waterfall.

"Captain Wang, look here."

"This is the 'background noise' that we couldn't capture or understand before. It's like a distorted fog that perfectly envelops and disguises the core energy signal source that attracts the monster."

"Most of the energy of our previous detection and analysis systems was interfered with, deflected, or even absorbed by this fog."

With a light tap of her finger, the waveform on the screen instantly switched to comparison mode.

On the left is a previously chaotic signal diagram, resembling a ball of yarn, while on the right is a now clear and well-structured analytical diagram.

"Through more than 700 simulations and reverse engineering of residual data from three real-world operations, we not only analyzed its compositional pattern, but more importantly..."

Tang Yu paused, turned her gaze to Wang Kui, and said, word by word.

"We have found the inherent frequency of this 'fog' itself and its 'weak point of resonance'."

Wang Kui was stunned. He wasn't a theoretical expert, but the current Earth Defense Force was not the same as the old Wu Lengzi. He understood what Tang Yu was trying to express.

The jumping data and clear waveforms on the screen were no longer cold symbols in his eyes, but contained a key to the enemy's location.

"You mean..." Wang Kui's voice deepened, his fist clenching slightly. "We can trace the source of that wavelength now?"

Tang Yu nodded vigorously, a relieved smile finally appearing on her tired face.

"Yes, Captain Wang."

"Although I haven't practiced it yet, I'm 90% confident that if we prepare the spectrometer, we can pinpoint the other party's location within ten minutes the next time that fluctuation occurs."

"Very good!" Wang Kui gave the order decisively.

"Get ready immediately. You now have the authority to mobilize most of the headquarters' resources. I will report to the commander-in-chief and have everyone cooperate with your operation."

Wang Kui knew that simply locating the enemy was far from enough.

If the other party can release this wavelength that attracts monsters without anyone noticing, it means that the other party definitely has some purpose, and being able to do this means that the enemy is extremely dangerous.

Finding the enemy was only the first step; how to deal with the enemy was what really gave him a headache.

It seems they'll have to pull out some of their trump cards for this operation.

...