Eunuch Xiao Yang instinctively wanted to refuse, but couldn't find the words to say no.
Before leaving the palace, the steward eunuch specifically reminded Eunuch Xiao Yang to act honestly. If they heard he had a change of heart, none of his family would be safe.
He also told him if someone discovered his magical arts and tortured him for a confession, when he couldn't endure it, he should hold his breath until he fainted, then hypnotize himself to forget everything, so when he wakes up, he truly remembers nothing, not betraying himself or his masters.
What could Eunuch Xiao Yang do? His family was probably under the steward eunuch's control, so he had to agree.
The steward eunuch promised that as long as he completes his task well, he will be allowed to stay on the prairie and will be rewarded with wealth and nobility, and his family would be sent to be with him.
Even if Eunuch Xiao Yang didn't believe it, he had no choice but to grit his teeth and continue down this dark path.
