Half a year after leaving his job, Lin Xu received a courier from 3032 AD in an old post office that was about to be demolished.
Shipping address: Site of Earth Civilization.
The package contained only a burned battery cell and a list of 1,174 people involved in the accident seven days later.
From that day on, whenever mankind reaches a fork in the road that could lead to destruction, the post office will deliver a relic of a failed future. Safety cells, fusion devices, lunar factories, interstellar ships... Every black technology can enable civilization to span a hundred years, but it also hides the reasons for destroying that future.
This time, Lin Xu and Cheng Zhixia were not prepared to copy the answers from the future.
They have to navigate a path that has never been successful among countless extinct versions of humanity.
