Yan Jiayu didn't reply until the second day after Xu Huo sent the message; she seemed to be busy with something. Her reply was brief, just saying she would be careful, and then she returned the large box through Beneath the Dimension.
The metal box appeared in Chaotic Space for a moment, and the originally half-open and half-closed eyes on the box suddenly all opened wide, including the pair of eyes shaped like a full moon on the front and back of the box. Moreover, these opened eyes seemed to come alive, with a feeling of struggling to break out from the box.
After scrutinizing it for a while, Xu Huo used a prop to inspect the box itself. The result was that no tracking device was placed on it. Of course, this result wasn't comprehensive nor precise, merely a tentative check. However, if the box had been tampered with, being cautious, he still left it outside for a while before putting it into the luggage cabin he had prepared in advance.
