C321 Tracing the cause of death(2)

Xiao Yixiu called Sui Feng over to inquire about the situation, and only then did he realise that it was not only Zhou Zhen and Xiao Chan who had disappeared, even Xing Er and Rui Zhu who were secretly monitoring them had also disappeared.

"When the king ordered the whole city to investigate, he kept investigating the whereabouts of all four of them. He never found them. That's weird