He went down the stairs to the second floor.

The entire second floor was badly damaged, with several broken doors askew.

Su Mo searched each room, but found nothing useful.

Until the last room, Su Mo discovered that it was full of pink cloth dolls, probably a little girl's room.

Then, on a cabinet, he found an old photo. The photo showed a hunched-over old man and a lively, cheerful girl.

For a moment, Su Mo felt a pang of emotion and picked up the photo frame, carefully examining it.

After a long while, Su Mo slowly turned the photo frame over, and discovered a string of numbers and a sentence on the back.

20521217.

Grandpa, I miss you so much! Always loving you, Tongtong!

Su Mo's eyes welled up with tears.

He stood there blankly for a long time, then put the photo frame back in its original position. Then he exited the room, straightening the crooked door and closing it.

Su Mo headed towards the first floor with a melancholy mood.

However, when he reached the first floor, his face couldn't help but twitch slightly.

In the hall, a group of zombies with their heads tilted stood blankly, staring at Su Mo face to face.

Without a word, Su Mo turned and ran back.

Then a dark mass of zombies swarmed up, chasing Su Mo hard on his heels.

Even if Su Mo was very confident in his skills, he wouldn't be so confident that he could take on a whole nest by himself. The current situation was no different from kicking a hornet's nest.

Su Mo rushed to the rooftop at top speed, then slammed the iron door shut. He then used his body to hold the iron door firmly.

Bang bang~~~

The zombies that caught up stretched out their bloody hands and frantically scratched at the iron door, showing no sign of giving up.

Su Mo's expression changed for a moment. He couldn't stay here. He decisively rushed towards the opposite shopping mall building. However, just as he rushed out, bang! The iron door collapsed directly, and a horde of zombies rushed out, but fortunately, the rope he had tied earlier was still there.

Su Mo grabbed the rope and quickly climbed up.

"Phew~~"

Su Mo breathed a long sigh of relief.

At this moment, he heard panting from the opposite side as well.

"Wheeze, wheeze~~"

Su Mo subconsciously looked up and saw that Lan Xi had also escaped back. She looked even more disheveled than Su Mo, with several tears in her coat.

"Don't look at me, do you think I wanted to come back? I had no choice. You were forced back too, weren't you?"

Lan Xi spoke first, cutting off Su Mo's words.

"What's the situation on your side?"

Su Mo asked directly.

"Why should I tell you?"

Lan Xi replied breathlessly.

"If you don't tell me, how can I make a judgment? Our food is limited now. If we stay here, it won't be long before we run out of supplies, even without those zombies."

Su Mo told her simply and clearly.

"Oh, I understand. You didn't find anything on your side, so you're trying to get information out of me."

"It's not like you found anything either."

Su Mo was also helpless. He really didn't want to get involved with Lan Xi, it was too annoying, so he retorted.

However, unexpectedly, Lan Xi took a small aerial drone out of her backpack and said triumphantly.

"Who said I didn't find anything? Look at this!"

"A drone, give it to me."

Su Mo was also surprised. This girl had such good luck.

"No, I found it. You're not teaming up with me, I'll use it myself."

As she spoke, Lan Xi took out a remote control with a display screen from her backpack.

Su Mo was speechless. He didn't go up to grab it, but watched Lan Xi fiddle with it.

Soon the drone slowly took off, then descended, then swayed left and right.

This girl didn't know how to use it at all. Su Mo couldn't stand it anymore and said.

"Don't mess with it. This kind of drone is obviously a civilian version, not a very advanced one. The battery won't last long, you're wasting power."

When Lan Xi heard Su Mo say that, she quickly handed him the remote control.

Su Mo took the remote control and skillfully operated the drone to scout around.

"How come you know everything?"

Lan Xi was also a little surprised. Was there anything this guy didn't know?

Su Mo didn't answer Lan Xi's question. He kept staring intently at the screen on the remote control. The drone's battery was less than twenty percent, it wouldn't fly for long, he couldn't waste a second.

Seeing Su Mo so serious, Lan Xi shut her mouth decisively and didn't disturb him.

More than ten minutes later, Su Mo retrieved the drone and handed it to Lan Xi.

"Keep it safe. Find an emergency power source later, you can charge it."

"How was it? Did you find anything?"

Lan Xi took the drone and asked nervously.

"Do you have a pen and paper?"

Su Mo asked simply and neatly.

"Yes!"

Lan Xi took out a notebook and a pen from her backpack. She had a lot of things in her backpack, and it was relatively complete.

Su Mo opened the notebook and quickly sketched a simple map on it.

Lan Xi's mouth was almost agape. The map Su Mo drew was super detailed.

"Are you sure you drew it correctly? How did you remember it?"

"I remembered it with my brain."

Su Mo replied very casually.

Lan Xi couldn't speak for a long time. It was really comparing people to others, making one angry to death. She helplessly asked, "What should we do next?"

"Leave here. One kilometer to our west, there are two very important buildings, one is a security company, and the other is a garrison bureau. I think we should be able to find handy weapons there. Relying on these guys in our hands, it's okay to deal with a small number of zombies. But once we encounter a larger scale, it won't work."

"More than a kilometer? How are we going to get there!"

Lan Xi's scalp tingled when she heard that.

"I found a route where the number of zombies will be relatively small. If we're not too unlucky, there shouldn't be too much of a problem."

Su Mo drew a crooked line with a pen. This line will first reach the security company, and then lead to the garrison bureau.

"But, how do we leave here now? It seems like there's no way to go. Although we haven't gone back to the mall, I guarantee that there will be even more zombies inside the mall under our feet. And the exits of the mall are surrounded by zombies."

Lan Xi asked worriedly. No matter how good the plan is, it has to be able to be implemented.

Su Mo frowned slightly. Lan Xi was right about that.

He also felt a little棘手 (jí shǒu-棘手 means thorny, troublesome or difficult to handle). Suddenly, Su Mo seemed to have thought of something. He walked towards the building Lan Xi had escaped back from.

Lan Xi followed suspiciously.

"Don't bother looking, it's impassable, there are too many monsters."

As a result, Su Mo walked to the end and glanced down, took a deep breath, and saw four zombies wandering on the rooftop of that building.

"Only four?"

"Ah, isn't four a lot?"

Lan Xi responded instinctively.

"Go take a look at my side."

Su Mo was too lazy to complain. If he had known there were only four zombies here, he wouldn't have struggled so much. He would have just gone down and killed them all.

Lan Xi curiously went to the building Su Mo had escaped from earlier and took a look, and was completely dumbfounded.

A dark mass of zombies, at least twenty or more, made Lan Xi's scalp tingle.

"Let's go my way then."

"Let me say the ugly things first. Since I used your drone, you can follow me. But if you can't keep up and die, don't blame me. I won't go out of my way to save you."

Su Mo warned simply and clearly.

"Okay, okay, don't worry, I will follow closely behind the great god, and I will definitely not fall behind. If I fall behind, then it's my own fault."

Lan Xi promised solemnly.