The invasion of the underwater world

"What's going on here? What has happened?"

"It seems like they are building something, my goodness, on such a grand scale!"

"During the construction of Dawn City, there was never this much commotion. Is that the city lord? What does the city lord want to build?"

Someone looked up and, with surprise, spotted Waldo in the sky, speculating about it. However, no one informed them of the answer.

Soon, this news spread far and wide. Survivors from all over the world saw this message. Indeed, everything happening in Dawn City now is affecting the nerves of everyone globally, making them turn their attention here.

It's possible that a single word or action from Dawn City will impact their destiny. People discussed this endlessly.

It's said that there's a white fog outside Dawn City, and no one knows what's happening! This fog seems to stretch hundreds of meters high and over a hundred kilometers long!