Lin Yan's research has not made any breakthrough progress. Xiao Li and other colleagues at the research institute are also unreachable. I don't know if they encountered an accident or were taken away by the military to continue their research.

This is the thirtieth day of the zombie siege, a full month, and the number of zombies is increasing.

Most residents' food reserves have reached the point where they have to go out to search for supplies. Every day, I sit on the terrace, operating a drone to observe the situation in the city.

I seem to have gotten used to the twisted postures and blood-stained faces of these zombies. Even if the drone I'm controlling accidentally crashes into a zombie's face, I remain calm and even boringly rate the appearance of each zombie.

The central hospital has completely turned into a zombie fortress, with a huge number of zombies inside, several times more than the zombies downstairs in the residential area.

The work group on my phone hasn't shown any new messages for a long time. Several familiar faces crawled out of the zombie tide, their nurse uniforms and white coats stained with blood. With teary eyes, I manipulate the drone to return home, feeling desolate and filled with respect for these colleagues who selflessly sacrificed their lives.

The potato plants I grew on the balcony have sprouted. Niko runs around the terrace every day, catching flies and mosquitoes.

Speaking of which, the top floor of my building is the 26th floor, where there is an open-air garden. In the past, bees and butterflies would fly down, but since the zombie outbreak, I haven't seen any of these creatures. There are more flies and mosquitoes instead.

Moreover, it's already February, and A City usually has snow every year. But this year, not only is there no snow, but the sun is always scorching, and the temperature often reaches 40 degrees. Lin Yan calls this extreme weather.

The good thing is that the zombies during the day are slowed down by the heat, and they all try to find shade or buildings to hide in. The bad thing is that the atmosphere of despair on the internet has become even worse, with more and more netizens posting articles like "last words." Eventually, the online activity has shown a steep decline.

Fortunately, the city still has electricity, and the air conditioning can still be used. This is probably why the military hasn't sent a rescue team for a whole month. They probably think we can still survive.

I often mention the rescue to Lin Yan, but as time goes by, he has gradually become silent, starting from being firm in his belief.

Approaching dusk, a head unexpectedly appeared from the top of the 24th floor of my balcony. To be precise, it wasn't a human head or a zombie head, but the head of a robot. It looked at me with two rotating mechanical eyes through the iron wire mesh of my balcony.

I was startled and ran back into the house, calling Lin Yan, who was immersed in research. But when I pulled Lin Yan back to the terrace, that robotic head was already gone.

I found a white note floating down on the terrace.

Both Lin Yan and I sensed a hint of panic in each other's eyes. The note read: Hello, I have been observing you for a long time.