The deep space cracks, the black sun appears, and the abyss awakens.
Shen Tinglan, a duty officer at a deep-sea communication station, was guarding a platform that was about to be abandoned.
Three years ago, he was the youngest ace of the Navy's sonar unit and was "exiled" here due to an accident.
Three years later, when the global quantum network was paralyzed, abyssal species emerged from the Mariana Trench, and human civilization overturned overnight—he discovered that he had been forgotten in this sea. It was not an accident, but a premeditated plan that had lasted for thirty years.
The audio tape of my grandfather before his death, the mysterious call from the deep sea, the remaining "echo" in his left ear that was deaf in childhood...
When everyone thought that the end of the abyss was destruction, Shen Tinglan heard something different——
The abyss also has a heartbeat.
