The Wall Between

In the 3rd century BC, a newly rammed-earth wall slices through the bloodline of two families on the Qin-Zhao frontier. Military rank can only be bought with enemy heads, and a secret tunnel beneath the wall becomes a desperate lifeline—and a deliberate loophole carved by unseen hands. A soldier, a widow, and a criminal discover that the law's deepest fractures are not accidents, but a scythe waiting to harvest the borderlands.