Captain Li instructed Xiao Wang to kick open every door.

Those watching the commotion in the courtyard were horrified when they saw the scene inside the room and immediately cried out in alarm.

"A person has been killed! A person has been killed!"

"Help! Someone's been killed!"

Captain Li turned to the onlookers and said, "Stop shouting, I'm right here!"

Everyone step back! Xiao Wang, go back to the police station and call for reinforcements!

After giving instructions to Xiao Wang, he went to the other two rooms and kicked open the doors of the other two bedrooms.

Just as he had expected, the people in the other two rooms were also dead.

He took a breath and could faintly smell the gas.

He took out white gloves from his pocket, put them on, and checked the people in the three rooms. Everyone's condition was almost the same. Based on their appearance and the circumstances of their deaths, he concluded that they had all suffered from carbon monoxide poisoning.

Xiao Wang was new to the police station, and this was the first time he had ever seen such a scene.

Normally, we catch petty thieves, and the more serious cases involve catching spies or people with questionable conduct.

This was the first time he had ever seen a murder case, and the most crucial thing was that the deaths were so gruesome, with the entire family, young and old, all gone!

The neighbors who were watching only dared to peek inside from outside the gate; they didn't even dare to go in.

Captain Li was in the room, carefully examining Old Sun's body. He found Old Sun's fingers strange; why did they seem to be pointing at something?

He looked in the direction Old Sun was pointing, and there was just an ordinary wall.

In those days, walls were placed against beds, and to prevent plaster from falling onto the beds, a wainscoting made of cloth was hung around the walls.

He walked over, lifted the wainscoting, and the falling plaster spilled onto the bed.

However, he discovered an important wonder: there were two bricks on the wall behind the wall that had no plaster on them!

Xiao Wang drove his sidecar motorcycle back to the police station to request backup, and soon five officers arrived at Lao Sun's house on motorcycles.

Captain Li told everyone about his discovery, and they immediately took down the fence.

They used a screwdriver to pry out the two loose bricks. As the two bricks popped out, they discovered that they were not whole bricks at all, but just small pieces.

There was a space in the wall containing an oilcloth bag wrapped in oilcloth.

These bungalows are prone to dampness, so the only way to prevent them from getting damp is to wrap things in tarpaulin.

The comrades from the evidence department kept taking pictures and recording all the evidence.

As the oilcloth bundle was opened, a notebook and several letters were revealed inside.

Captain Li picked up the notebook and carefully looked at its contents.

His eyes narrowed instantly, and he hurriedly ordered Xiao Wang to go to the police station and call the officers over, as there had been a major discovery!

Li Xiyue was at the corner of the alley, leaning against the wall, holding sunflower seeds in her hand, eating them as she watched.

Everything was just as she had imagined, although she didn't know what was written in the notebook.

But she was certain that anything Old Sun could hide like that must be something that could threaten Song Haoqiang!

Suddenly, Mi Bao shouted in the space, "Look, look! Who is that person in the crowd?"

Li Xiyue glanced over and sneered, "As expected, there's an unbreakable law of crime: criminals always return to the crime scene!"

Mi Bao said, "Song Haoqiang is right there! It's a pity we can't go and arrest him!"

Li Xiyue said, "Of course we can't arrest him now. I don't believe he has the ability to be the big boss of all the secret agents in the capital!"

There must be an even bigger boss behind him. Keeping him alive is to force him to find that big boss and wipe out all the hidden spies in the capital!

Once Song Haoqiang is arrested, if he refuses to talk, all the leads will be cut off by him!

They'll never know who the real big boss behind Song Haoqiang is!

In order to catch this big boss, we can only let Song Haoqiang jump again for a few more days.

Song Haoqiang's expression was clearly not good; he looked at the situation in the room with a dark face.

He was the only one standing at the front, eager to run into the room and watch Captain Li and his team collect evidence.

He saw Captain Li take an oilcloth bag out of a hidden compartment, and he watched as the notebook inside the bag was taken out.

His eyes snapped shut in pain. He was certain that something shameful was recorded inside!

Otherwise, how could Old Sun have hidden this thing so well?!

What's most infuriating is that, in order to eliminate the Sun family without them knowing, he blocked all the chimney exits.

He didn't have time to ask Old Sun if he had hidden anything. And he didn't expect that Captain Li would discover it so easily!

Hearing the approaching sirens in the distance, he quietly slipped out of the crowd and drove away in his jeep.

Everything is in chaos, all plans are in disarray?

Their people were captured one by one. What exactly was written in that notebook?

He dared not even think about it!

Only one thought was exceptionally clear to him: he had to run away!

If he doesn't run away soon, he might be the next one to get caught!

Li Xiyue said to Mi Bao, "Follow Song Haoqiang and see where he went!"

She couldn't let Song Haoqiang disappear; she had to keep track of all his movements!

Following Li Xiyue's instructions, Mibao left Li Xiyue's space and flapped its wings to chase after Song Haoqiang's jeep.

This time it was wearing eagle skin. Eagles have excellent eyesight and can see cars, even people and rabbits below. Moreover, eagles fly extremely fast and can catch up with jeeps.

Li Xiyue remained at the corner of the alley, watching as the police officers entered Old Sun's courtyard and examined his notebook.

The police took the notebook away; it was important evidence, containing records of Lao Sun's communications with his superiors and subordinates.

The list of subordinates that Lao Sun had contacted was clearly written on it.

The superior is a man named Falcon!

However, the notebook did not directly state Eagle's real name; it only stated that Eagle worked in the military region's research group.

However, one letter was strange. It was inside an envelope, but there were no words on the paper; it was a clean sheet of paper.

But why put clean letter paper into an envelope?

The envelope had the words "Letter of Complaint" written on it in large characters, and also addressed to "Police Officer".

Captain Li was confused, and the police officers were also somewhat bewildered.

Since it's a whistleblower letter, why is there not a single word on the letter paper? Did they not have time to write it?!