"She Xi indeed has his methods. At least he has kept all of You Si thoroughly subdued; these years everyone has been doing their own thing." If it weren't for the trouble, Qin Muye would think it a waste to keep such a talented man just to deal with the Snake-man Clan.
He didn't enter You Si, but stood before the stone door underground. After he was freed from the constraints of national fortune, he first sensed that You Si was indeed the corpse of the Snake Father.
So, he didn't plan to just enter. Entering a ninth-rank corpse might agitate it. An eighth-rank could come and go freely, but a ninth-rank could not; moreover, the Snake Father was not completely dead, and thus required camouflage.
"It has been a long time, Your Majesty." The stone door slowly opened, and She Xi walked out alone, bowing as he spoke.