"If there really is a survivor hidden here, the greatest possibility is that they are hiding in one of the houses. I just need to make some noise and they should respond," Harry said, pausing in front of the second house's security door and raising his cleaver to rhythmically tap on the door.

As he tapped, he looked at the security door and focused his hearing to listen for any movement inside.

Unfortunately, there was no response.

Harry frowned slightly.

According to his guess, there was a high probability of a survivor hiding somewhere here. If not in this house, then maybe in another, as this whole floor only had three households, and he had already checked the first one with no one inside.

As long as someone was inside, knocking on the security door would make enough noise to alert them. They would then probably observe the hallway through the peephole and see him.

"I don't look like a zombie, so if they see me, they should know I'm a survivor. They should open the door or make some noise to respond to me... Why is there no reaction? Are they too cautious? Are they still observing in secret?" Harry frowned, finally speaking up.

"Is anyone there?" Harry raised his voice and knocked on the door again.

He had already made noise, so he shouldn't be mistaken for a zombie.

Harry called out twice, but there was still no response.

"This is strange," Harry looked at the shattered corpse on the ground. It was undoubtedly the work of other survivors. Could it be that the survivor had also left this place like himself?

"They haven't even disposed of these corpses, which doesn't look like they're still staying here." Harry pondered, feeling a little disappointed. If he were here, he would not have let these bodies lie in the hallway like this. At the very least, he would have piled them up together.

From this detail, it seemed that the person who did this had really left and left in a hurry. They might have even killed these zombies and then left, so there was no need to come back and dispose of the bodies.

Harry sighed and walked towards the third house at the end of the hallway.

Although he knew the hope was slim, Harry still decided to knock on the security door of this house and see if there was any response inside.

However, as Harry approached, he suddenly noticed that there was a key in the keyhole of the security door, and it was stained with blood.

"Hmm? This is the key to the security door." Harry's heart moved slightly. He thought that if there was a survivor living here, they might have inserted the key into the lock in case the security door closed due to wind or other reasons when they went out. It was reasonable.

Stolen story; please report.

After all, the city was flooded, so there was no need to fear thieves coming in anymore, and even if there were thieves, they would not be welcomed, if there were any.

And zombies couldn't use keys to open doors.

Looking at the key in the security door, Harry did not immediately open the door but knocked on it.

"Is anyone there?"

After asking twice and pausing for a moment to confirm that there was no response, Harry reached out and turned the key.

The key started to turn, and Harry confirmed that it was indeed the key to the security door in front of him. He could clearly feel that the door had been opened.

Taking a deep breath, Harry took a step back and assumed a defensive pose. This was a security door that opened inward, so Harry put his foot against it and pushed it inward. He then looked inside through the increasingly large gap in the door, holding his knife and hammer tightly, ready to react in case of any emergencies.

What Harry saw in front of him was a toppled shoe cabinet, various shoes scattered on the ground, a large amount of broken glass, and several human corpses.

A fine vertical line appeared between his eyebrows, and he activated the "Peeking Eye Rune," looking at the closest corpse.

"Zombie, the lowest-level Spiritual Source beast infected by the virus. By cannibalizing each other, there is a certain probability of evolution into a higher-level zombie. Other: None."

Looking at the smashed heads of these corpses, Harry didn't need to use the "Peeking Eye Rune" to observe to guess that they were all killed Zombie.

The anti-theft door was completely opened, revealing a messy living room. The living room was large, and there were three smashed corpses lying on the ground, and a corpse was lying on the spacious leather sofa, with its head also smashed.

Without looking closely at each one, Harry knew that all four of them were Zombie that had been killed.

Harry walked in slowly, with debris all over the ground and traces of fighting everywhere. It seemed that a fierce battle had taken place here, and splattered blood stains could be seen everywhere on the snow-white walls.

Suddenly, Harry stopped and stared at a particular spot on the wall, with a hint of confusion in his eyes.

Apart from the glaring blood stains, there were also deep grooves on this wall that looked like claw marks.

"How did these marks get here? These low-level zombie creatures don't have sharp claws. Strange..."

Harry looked at the claw marks on the wall and immediately became alert. However, the fight must have happened at least a day ago, and now everything was quiet. Even if there was once some kind of creature with sharp claws here, it should not be here anymore.

Facing the living room was a bedroom, and the door to the bedroom had collapsed, with blood stains trailing into the room. Obviously, the fight was intense, and it had spread from the living room to the bedroom.

Harry slowly walked to the entrance of the bedroom, looking at the claw marks on the door that had also collapsed to one side.

Looking up at the messy bedroom, one side of the table was broken, there were shattered table lamps on the ground, and the potted plants on the windowsill had all fallen down. The flowers that were once blooming were now withered.

Inside the messy bedroom, there was also a corpse.

The corpse was that of a middle-aged man in his forties, slumped in front of a set of white wardrobes with his head drooped down. There was a huge wound on his chest, which had split open his chest cavity, allowing a faint view of his internal organs.

Although it's already dead, the right hand of this corpse is still tightly holding an iron rod.

Seeing this iron rod, Harry's eyes lit up.

It's called an iron rod, but the correct term should be a thick steel bar, about a meter long and as thick as a goose egg. This type of steel bar is very heavy, and if swung with enough force, it can be very deadly.

Harry currently has the strength of seven hundred kilograms in both arms. He has always felt that the weight of the knives and hammers in his hands is too light, and he cannot fully exert his strength. He just hasn't found a suitable replacement weapon yet. Now that he sees this iron rod, he feels happy inside.