C403 return base

"Hmph, this information is not useless either. From the distance between the undulations, the runes on the Ghost Seal can calculate the approximate location of the other Ghost Seal.

"Yes, this algorithm is like a ripple principle, but the scope is too big. I also don't have any other instruments available, so it's impossible to get better data."

"? ?" Zu Caihui rolled her eyes at Yang Xin