(TN: The Chinese term used to refer to the Underworld/Hell is 地狱, which literally translates to 'underground prison'.)
For many reasons, Chen Changsheng had to kill Zhou Tong. The most important of these reasons was that the coup of the Mausoleum of Books had essentially started from his last attempt to kill Zhou Tong.
When he walked into this courtyard last time, it was the beginning of a shift in history, the source of all life and death. Now, the Tianhai Divine Empress was dead, many other people had died, and the river of history had flowed through a big bend. Yet Zhou Tong was still living well, and even better than he had lived before. Chen Changsheng felt that it was right that he finish off this matter.
Even though he didn't even know where Zhou Tong was at present.
Just then, he and Xiao De lowered their heads at the same time, gazing at the remnants of snow on the ground of the courtyard.