Thirty-two billion years. Thirty-seven cycles of civilization. Each time, humanity reaches the same fork in the road—and is destroyed.
This time, an ordinary young man will make a different choice.
Jiang Lan, 28 years old, is a data analyst at the Institute of Astrophysics. He didn't know there was anything special about him - except for those recurring dreams, those unexplained scientific intuitions, and the voice that sounded softly in his head.
Until Shen Yunwei from the Abnormal Phenomenon Investigation Section of the Ministry of National Security knocked on his door.
From that moment on, he was involved in a chess game that spanned 3.2 Billion years: the crystals sleeping underground in Tibet, the mysterious experiments at CERN, the high-dimensional existence who called himself "Echo", and the technology giant Gu Shen who did not hesitate to open the dimensional channel in order to save his daughter.
When a door to a higher dimension appears all over the world at the same time, mankind stands at a fork in the road of civilization - integration, conquest, isolation, or... An unprecedented fourth way?
This time, no one can choose for humanity.
Seven billion people, seven billion doors.
And Jiang Lan was just the first person to walk in.
