In the 21st year of the Qin Dynasty, the 99th time traveler Gu Yan, a doctor of mechanical engineering, landed in Xianyang.
He only has three hundred and sixty-five days.
His predecessor, Lin Duzhou, the 98th traveler, left him a calendar, a list of unfinished tasks, and a pocket watch engraved in English: "For those who carry the fire."
Gu Yan didn't know the meaning behind those English words, but he understood one thing: the baton had run ninety-eight times, and now it was his turn.
Steam engines need to be upgraded, telegraphs need to be laid out, internal combustion engines need to be built, ironclad ships need to be launched - everything starts from scratch, and every day may be the last day.
He has no golden fingers. He has a lot of modern knowledge, a temper that refuses to admit defeat, and countless sleepless nights.
And, a group of people who are willing to take the fire.
