"Tang Hao, I came to you because there's something I need your help with!"
Xiao Yu's voice was calm as he made his intentions clear to Tang Hao. "There's a Ten Headed Fierce Yang Serpent on Hell Road in the City of Slaughter. Go fetch its Inner Core for me!"
Retrieving the Inner Core was merely a pretext. Xiao Yu's true purpose was to send Tang Hao away so he could take that Blue Silver Emperor right leg bone and give it to Ye Lingling to improve her cultivation aptitude.
After all, if Tang Hao wandered around outside and happened to return one day because he missed his wife, he might run into Xiao Yu while Xiao Yu was searching for the Soul Bone. Then things would get serious. If Tang Hao found out they coveted his wife's Soul Bone, he would definitely fight them to the death. They had to find a way to trap Tang Hao somewhere and keep him from returning to Holy Soul Village for several months.
The City of Slaughter was the best choice.
It was a completely sealed place. Even though Tang Hao was already a Slaughter God, he would not be able to leave in less than three to five months. That would be more than enough time for Xiao Yu to locate and seize the Soul Bone, then handle the aftermath.
As for the Ten Headed Fierce Yang Serpent's Inner Core, that was purely incidental. He would be stealing Tang San's opportunity, and making his own father do it no less. Just thinking about it was thrilling.
Besides, the Inner Core had considerable benefits. In the original story, Ma Hongjun's Martial Soul had completed its final evolution through the effects of this Inner Core, becoming the Nine-Headed Phoenix and gaining the Phoenix