The aloof military doctor arrives at the unit, and the tough guy can't sit still.

"Woof..."

Hearing the dog bark, Xia Qiuran's heart skipped a beat. Her eyes, which had dimmed, instantly brightened again. She smiled and quickly ran out.

When I ran to the door, sure enough, it was Aunt Lü with Big Yellow.

After a person dies, their body releases a special volatile odor and bodily fluid residue. Whether buried in the ground or frozen, the odor will slowly seep out.

A dog with a keen sense of smell is undoubtedly key to finding clues.

At that time, Shangchun City did not have any police dogs. When she learned that they were going to search Ma Daguang's house, she asked Aunt Lü to help her find a dog like that.

"The road was too far, I almost didn't make it back. Xia, this big yellow dog is the king of dogs in that village. I gave him five yuan and he agreed to lend it to me for a day. It's definitely good enough." Aunt Lü came running over, panting.

"Thank you so much, Aunt Lü."

"What are you thanking me for? Go get back to your business."

Xia Qiuran squatted down and gently patted Da Huang's head. Da Huang immediately wagged its tail and rubbed its mouth against Xia Qiuran's hand.

Indeed, it has a lot of spirituality.

Xia Qiuran eagerly led Dahuang into the house and let it smell the simulated corpse scent that had been prepared in advance.

Ma Daguang's gaze tightened, and his expression grew increasingly panicked. He quickly stepped in front of Xia Qiuran.

"I'm allergic to dog hair, so you'd better take this thing away right now."

"Ma Daguang, didn't you just say you could train dogs? How come you're allergic to dog hair now?"

Xia Qiuran snorted, ignored him, and walked straight into the house.

Once inside the house, Dahuang immediately began swimming around like a little fish in water, sniffing everything.

After walking around for a while, it finally stood in the middle of the ground, facing the window, and started shouting.

"What's wrong with this dog? Why is it barking at the window?"

Everyone was stunned. The window had only a few panes of glass and a wooden frame. How could anyone hide in that?

Xia Qiuran stood to the side, equally bewildered. Could it be that bloodstains had splattered on the window earlier, causing Da Huang to bark at it?

"Dr. Xia, there's no sign of renovation at all, including the window and the wall next to it. I just asked the neighbors, and they said that Ma Daguang has never repaired the wall."

The police captain walked over and whispered to Xia Qiuran.

Could it be that Big Yellow was called the wrong name?

No, something must have been overlooked.

Xia Qiuran suddenly noticed the heated brick bed under the window.

It's so big inside, there's enough room to hide three to five people.

Moreover, the kang (heated brick bed) is next to the window.

Xia Qiuran whispered a few words to the police captain, who then quickly left.

Sure enough, a positive answer came shortly afterward.

"It might be a bit of a hassle for you guys later, please take down this kang (heated brick bed)," Xia Qiuran said to the police officers without much thought.

"Xia Qiuran, don't push your luck. What right do you have to tear down my kang (heated brick bed)?"

Ma Daguang's eyes widened, and his chest heaved as he immediately ran over to stop him.

The search warrant clearly stated that no property of the person being searched could be damaged. Xia Qiuran knew that doing so would violate the regulations, so she tried to speak politely to Ma Daguang first.

"Ma Daguang, if there's nothing under this kang (heated brick bed), I'll personally pay for you to rebuild it."

"That won't do either. My kang was built by an experienced craftsman, and it's very easy to heat up in winter. How am I supposed to know if the people you've found are skilled enough?" Ma Daguang refused without even thinking.

Xia Qiuran continued, "After you finish building the kang (heated brick bed), I can give you another 100 yuan as compensation. That amount is enough to build 30 kangs."

"No, I don't need your money, I just want my kang (heated brick bed)," Ma Daguang refused again very decisively.

The price for setting up a stall is about 2-3 yuan now, and the price he paid for Sun Xiaocao was only 120 yuan. If it were someone else, they would probably agree without hesitation, but Ma Daguang actually said no so easily.

It seems there's only one conclusion: there's something more important inside than 100 yuan.

Well then... I'm sorry.

As Xia Qiuran spoke, she gave a wink to the police captain beside her.

The police captain immediately understood and restrained Ma Daguang.

"What do you want? Help! The police are beating people!"

Ma Daguang panicked completely and shouted repeatedly at the door.

"Ma Daguang, didn't you just say that I got angry because you didn't give up your seat for me on the bus? This is a personal matter between us and has nothing to do with anyone else. If there are any problems in the future, just come to me."

Xia Qiuran continued calmly, saying that this matter was indeed against the rules, and he didn't want to implicate the police officers who had come with him, so he spoke loudly to Ma Daguang.

Her voice was loud enough for the crowd outside to hear.

With so many people here, we won't have to worry about Ma Daguang making excuses later.

After Xia Qiuran finished speaking, she turned around, pulled off the kang mat, and then picked up a large pickaxe and started digging vigorously.

The pickaxe slammed into the cracked adobe bricks, sending fine dust and years of accumulated dirt flying everywhere, turning the surrounding area into a gray haze.

Xia Qiuran's face and body were covered in a thick layer of dust, but she didn't stop for a moment.

Suddenly, the clods of earth collapsed with a roar, and the gap grew larger and larger.

The dark, narrow gaps between the layers under the kang (heated brick bed) were completely exposed.

Those around were on edge, and they all crowded around.

This time, as expected, everyone saw a dried-up, blackened body bent inside the crevices.

Caught red-handed, Ma Daguang, who had been struggling desperately just moments before, suddenly fell silent. His face was as pale as paper, his eyelids were wide open without moving, and his limbs were stiff. He was clearly terrified.

...

In the police station, seeing that there was no room for maneuver, Ma Daguang honestly confessed to what he had done.

"I didn't mean to kill her. Who knew she was so fragile? I specially stole these speculum pliers, and before I could even properly remove them, she started bleeding heavily."

Ma Daguang's hands, still trembling despite being handcuffed, trembled as he spoke, his voice trembling with tears, a stark contrast to his previous smug and confident demeanor.

"There should be a lot of blood from massive bleeding. How did you handle it? And then a perfectly healthy person suddenly died. Didn't anyone around you suspect you?" the interrogator asked, suppressing his discomfort.

Ma Daguang: "I dug a hole under the kang (a heated brick bed), and the blood slowly sank to the ground. I don't usually talk to any of my neighbors, and we don't have a good relationship. They know I have a bad temper, so they usually avoid me. Therefore, they don't dare to ask too many questions about my affairs."

"Not long after, I brought my third wife back. I also brought other women back during that time. With all these reasons combined, they probably didn't pay much attention to Li Shuangshuang's disappearance."

"Ma Daguang, do you know that when Li Shuangshuang was murdered, she was about three months pregnant? After a forensic examination, tiny white bone fragments, smaller than a fingernail, were found scattered in her pelvic area."

The interrogators stared at Ma Daguang with undisguised disgust in their eyes, as if they had stepped in rotten feces, feeling nauseous from the soles of their feet straight to their chests.