Li Yuebai played the recorded call over and over again and found some clues from the noisy background noise.

In the background music, there is a regular sound: ding, ding, ding, ding. It is very low but very clear, with a frequency of about one second.

This sound is all too familiar - in the old residential area where Gu Xisha rents a house, the underground parking lot is very small and cramped, making it easy for accidents to happen, so the property installed a reminder at the corner. Whenever a car drives by, the reminder will make such a dinging sound to remind other vehicles and pedestrians to pay attention and avoid it.

The sound of this reminder is very special. Li Yuebai has never heard anything like it in other communities.

So, Ye Qing must have gone home. During those few seconds when he made the call, he was in the underground parking lot.

What was that girl screaming about? Her voice was distorted due to her panic, but I could still tell she was very young. Could it be... Xiao Wan from last time?

Li Yuebai felt cold sweat oozing out of his palms, and for a moment he didn't know what to do.

What if I go to find Ye Qing recklessly and irritate him?

What if something goes wrong if I don’t go look for him?

After hesitating for a few seconds, Li Yuebai gritted his teeth, took out the car key, and ran to the parking lot, where there was a white Toyota that exactly matched the car key.

The car keys and the white Toyota both belong to Wang Wen.

When he handcuffed Wang Wen at the beginning, he fumbled around Wang Wen's body for a while. His initial purpose was of course to find the ugly little wooden sculpture or the small black coffin, but he found neither, so he took the car key from his pocket.

In fact, the purpose of taking the car key was to prevent Wang Wen from driving away.

Unexpectedly, now this Toyota has become Li Yuebai's only means of transportation.

I can't borrow a car from the bureau because it will attract attention, and I can't borrow a car from the museum either, so of course this is the only option.

Li Yuebai didn't know how he rushed through the heavy traffic. He only knew that when he arrived at the underground parking lot, his first reaction was - it was too late.

The place where they originally parked was empty, and there was no sign of the black Mercedes-Benz.

But judging from the dust marks on the ground, Ye Qing had driven here just now.

There was something on that patch of ground that they hadn't seen the last time they drove away from there.

Li Yuebai approached with heavy steps.

The thing became clearer and clearer in my sight, a furry ball of medium size.

It's a teddy bear.

There was a fresh stain of blood on its brown fur.

Two o'clock in the morning, Military Region General Hospital, Building 39.

The National Security Department set up a separate room for Liang Jing here, which serves as both a laboratory and a living room. Not only can she continue to work here, but she can also receive strict protection.

During this period, Liang Jing didn't know how she managed to get through it. She could only suppress her anxiety and fear by working frantically.

At first, there were always a few people following her, protecting and monitoring her at all times. Later, she gradually realized that the vampires had no intention of continuing to bother her. From this week on, her protection level was lowered, allowing her to act alone and meet and talk with certain insiders.

It was already past two in the morning. Liang Jing sighed, rubbed her sore eyes, took off her gloves, washed the bottles and jars on the laboratory table, and planned to go to the bedroom next door to have a good sleep.

Strangely, the doorbell rang.

Who will come to visit at this time?

Liang Jing couldn't help but feel alarmed.

Although she knew that the security measures outside were very strict, she was still haunted by her previous experience.

She picked up the alarm, held it in her hand, and walked towards the burglar-proof door step by step, and asked vigilantly, "Who?"

"Gu Xisha." A tired voice came from outside the door.

Liang Jing turned on the video surveillance and saw that it was indeed Gu Xisha, no outsiders.

At this time, if you don’t even trust Gu Xisha, then there is no one else you can trust.

Liang Jing sighed and let the other person in: "There are guards outside, how did you get in?"

She thought about it again and understood. Gu Xisha was a former police officer, an important insider and executor of the vampire incident. He and Ye Qing participated in the investigation of two vampire-related cases and had a high right to know. In terms of personal relationship, he was also Liang Tian’s colleague and friend. If even he could not come to visit her, then no one else had the right to visit her. In fact, even the higher-ups hoped that Gu Xisha could come to chat with her more often, counsel each other and relieve their mood, but he had never come. I don’t know what case he was busy with recently, or maybe a new vampire had appeared.

It was just that it was the first time that Ye Qing was not by Li Yuebai's side, and he felt a little uncomfortable.

Li Yuebai felt that he didn't even have the energy to say hello to Liang Jing. He forced himself to smile, which was uglier than crying, then took out a black bag from behind and handed it to Liang Jing.

Liang Jing took it and felt something soft and bulging inside the bag. When she opened it, she saw that it was a teddy bear.

"Xiao Gu, are you kidding?" Liang Jing frowned.

"Blood." Li Yuebai wearily took out the teddy bear, turned it around, pointed at the bloodstain on it, and whispered, "Help me see what kind of blood it is."

"..." Liang Jing's expression became serious when he saw the bloodstains.

She put her gloves back on, sucked out the blood, and dripped it into the test tube.

"Human." Liang Jing gave the answer soon.

With the technology in this world, it is very easy to determine whether blood is human or not, especially in such a well-equipped laboratory, where the results can be obtained very quickly.

Li Yuebai was already nearly going crazy from being suppressed, and now he just wanted to go crazy.

"Vampires...what do vampires feed on?" He tried his best to stay rational and asked Liang Jing.

"...Of course it's human blood." Liang Jing looked at him strangely for a few more times: "Xiao Gu, what's wrong with you? What happened?"

It is true that Liang Jing resented Gu Xisha in the past, but ever since he saved her last time, her feelings have become complicated. Although she still can't get over what happened to Liang Tian, ​​she can't help but be grateful to Gu Xisha, so now, she just wants to repay his favor.

"That's not what I'm asking." Li Yuebai rubbed his temples painfully. "I want to ask, have you researched something that can replace human blood?"

Liang Jing was stunned.

As expected of Gu Xisha, he saw through her work so quickly.

After Weng Zichen was possessed by a dormant body, he caused such a big case. Liang Jing was rescued by Gu Xisha, and Weng Zichen was also controlled by the police and the hospital. After that, the higher-ups arranged for Liang Jing to live here.

This is Building 39 of the Military Region General Hospital. Not far away is Weng Zichen's ward. He is now under strict surveillance by the National Security Department's specialists and is surrounded by top doctors and biologists. Liang Jing is also one of the biologists.

She and Weng Zichen were originally husband and wife. Although their relationship was very bad, they were closely linked together by fate in the last incident. The dormant body was originally given to Liang Jing, but it possessed Weng Zichen by mistake. Liang Jing always felt that she also had an unshirkable responsibility. Therefore, she did not intend to stay away from this incident and hide away. She must also participate in the research and treatment of Weng Zichen.

Now, what she does every day is to go to Weng Zichen's ward, observe the situation, draw blood samples, conduct tests, and seek solutions.

Vampires have a strong desire to suck human blood. Weng Zichen also has an attack every day. Fortunately, under strict supervision, he will not have the opportunity to suck blood. Liang Jing has been researching substitutes for human blood for a while - something that can satisfy vampires' desires without sucking human blood.

"I am indeed researching it, but I haven't succeeded yet." Liang Jing admitted, and then pointed to a locked bulletproof glass cabinet, where there were several test tubes filled with liquids of different colors: "These have been made, but the results are not very good..."

"The effect is not good?" Li Yuebai tried to concentrate: "The effect you are talking about, is it..."

"Yes." Liang Jing nodded: "I have used these on... my husband... but the effect is not obvious. He still has a strong desire for human blood..."

She felt uncomfortable after saying this, and her tone was awkward and stiff.

Weng Zichen is her husband and the person who once hated her the most. Now, strictly speaking, he has become her patient and her experimental subject... She doesn't know how to deal with this complicated situation.

"I need to go visit Weng Zichen, is that okay?" Li Yuebai asked.

Ye Qing is now missing and may kill innocent people... It is difficult for vampires to suppress their blood-sucking instinct. The only way out is to find a substitute.

And Weng Zichen is the only vampire that Li Yuebai can observe now.

"Okay, your authority has always been very high." Liang Jing thought about it and agreed: "Also, just now, I made a new substitute liquid. I originally planned to try it immediately, but now it's too late..."

She pointed to the flask on the test bench, which contained a black viscous liquid with a complex composition that was synthesized in the laboratory and had never been tried.

Vampires hide during the day and come out at night, so two o'clock in the morning is the time when they are awake. However, Liang Jing did not want to go to the ward at two o'clock in the morning to force Weng Zichen to drink the bottle of liquid. Every time the substitute liquid was tried, all the guards had to rush forward to hold down Weng Zichen who was in a manic state, making a mess. After each trial, Liang Jing would be in a bad mood and had difficulty falling asleep, so she originally planned to hand this task over to someone else.

But now Gu Xisha came to the door with a very anxious look on his face. Maybe a vampire had appeared somewhere again.

Gu Xisha is eager to get a replacement, perhaps because she needs to appease the newly emerged vampires so that they will no longer harm people... This is a matter of life and death, and she must help as soon as possible.

"Follow me." Liang Jing gritted her teeth, picked up the flask on the laboratory table, and walked out.