Xie Fangze stared at his phone, his gaze tracking the target's trajectory, yet all he saw before him was a solid wall.
He frowned and walked over, scrutinizing the wall surface, searching for hidden mechanisms or secret doors, but he found nothing. Unwilling to give up, Xie Fangze walked to the window and peered outside. The courtyard view was entirely ordinary; there was nothing out of the ordinary to be seen. He turned and began pacing the room, his sharp eyes missing no corner or detail.
After a while, he paused as if struck by a sudden thought. He opened a distance-measuring app on his phone, pointed the camera at the floor, and gently tapped the scan button. Moments later, the software returned its measurements. He then had someone measure the length of the exterior wall.
Chapter 356