In 528 AD, the battlefield at Fukou is a mountain of corpses and a sea of blood.
Materials scientist Li Wei is flung from the modern era into the chaos of the Northern Wei. Clutched in his hand is an arrowhead engraved with two contradictory reign titles: Wutai Year One and Zhengguang Year Five, both etched on the same blade.
To survive Erzhu Rong’s slaughter, he is forced to become an armorer for the Qihu army, only to stumble upon an even more terrifying truth:
The official measures of millet grow mysteriously smaller each day.
Unfinished caves at Yungang reveal bizarre murals at night.
On the wrist of the imperial clanswoman Yuan Mingyue, historical facts absent from A Mirror for Aid in Government begin to appear.
When the armillary sphere in the underground palace of Yongning Temple lights up with a star chart from the 21st century, the Grand Astrologer cries out the truth: this is no celestial phenomenon, but a sign that the anchor points are collapsing!
The Northern Wei, it turns out, is nothing more than a blood-soaked sandbox in a war across time.
Erzhu Rong’s tyranny and the screams of the Heyin Massacre are all scars etched by future revisionists.
And the one who changes history
will ultimately become history itself,
its most painful suture.