The latest new book that travels through the Tang Dynasty: ① In August of the 26th year of Kaiyuan, Tuoyun Castle at Tuoyun Pass in Shule Town, the Anxi Protectorate of the Tang Dynasty, was in midsummer outside, but it was freezing and windy here. Gao Jingxuan, who traveled through time and space, became a Tang Army cavalryman. The Tang Empire was at its peak of glory. And he, Gao Jingxuan, is standing at the turning point of history, preparing to write his own legendary chapter. .