Tianlong Yun had been expecting this bell, he had notified the guardians of his location when he got down after what happened with Huang Mei Xin.
Seeing them he finally had an idea on how to attract the attention of the police and everyone else to this house. In the meantime, he had to think of a way to take Yang Xiu and his family with him.
He didn't have time to convince his wife and son through him, so he needed to find a quick way to smuggle them to Tianchang City.
The only idea he could get at the moment was to knock them out and put them into bags or carton boxes, as baggage.
He didn't care much how difficult it would be for them inside the carton boxes, because they had already done much worse to their victims.
With this thought in mind, he ordered the four guardians to find the carton boxes while he went to talk to Huang Mei Xin, who was still in her earlier room.