Tiangong Hidden Pile

In the seventh year of Jinglong's reign in Daning, a very strange ninth-grade painting student came to the Construction Department of Qinghe County. His superior's official hat was crooked three times, and he couldn't help but stretch out his hand to straighten it on the spot; he took one look at the towering pavilion painted by a powerful and famous teacher and concluded that the upper beams would collapse; the Qinglongkou dam was about to burst, and the whole county prayed to God and Buddha. He jumped into the mire with an ebony ink fountain and held down the earthworm that turned the sand. Others relied on oral confessions and tips to solve cases, but Lu Yanan only investigated the case by measuring inclination, measuring mortar, and calculating torque. When a quenched iron wedge engraved with reverse inscriptions was pulled out from the depths of the broken dam, under the map of Daning's Kyushu, a shocking scene of killings precisely cut out of the city, sluice gates and palaces suddenly appeared. Under the ink line, there is no difference; The rules are full of murderous intent.