Crowns.

Hao Ren and Yin were planning to go back to the southern continent when Tang Zhen sighed and said, "Use the isolation arrays here only. If you trigger the teleportation array the fluctuation will be noticed. That old man of the Xue Family does not feel like a guy who would take his eyes away, also that slap basically challenged his dignity so the next time he gets a chance, he will use all his energy to kill you." 

Hao Ren thought about it and said, "Well, good suggestion. Xiao Si, power up all the isolation arrays, and Yin, darling go to the practice room and take out all that you took from the vault." 

Yin nodded and left the place quickly. Ye Si also started the arrays and the isolation was complete. Inside the practice room, the walls were inscribed with isolation and defense arrays, so it lowered the risk even more. After a few moments, Yin said, "Baba, you can check what you want now."