Fortune favors the alert. Luo Zheng suddenly had an idea, but he didn't elaborate, instead hurriedly running over the mountaintop to a nearby stop, observing a crevice in front of him. The widest part was no more than three or four meters, and the narrowest barely one meter. Luo Zheng walked to the edge of the crevice, peered down into the dark depths, bottomless, with the faint sound of water echoing up. It was the river under the canyon, with a cool breeze blowing, the river flowed through the crevice toward the valley to the east.
The towering mountain originally blocked the river, but with the crevice, the river continued eastward, failing to form a lake. This natural wonder was astonishing. Luo Zheng observed for a while, his face showing a long-lost joy. Song Yun caught up and, seeing Luo Zheng's expression, instantly understood that he had thought of a plan and was relieved. He asked, "Captain, have you thought of something?"