Secret of the stone
"A violet eye?" Ren Xiaosu said in shock, "And it's even an eye on a stone? What joke are you cracking? How can there be eyes on a stone?!"
While they were talking, Ren Xiaosu's mind started racing. Not only had he seen the stone Melgor was talking about, but it also happened to be in his possession!
When the third weapon was unveiled that day, Ren Xiaosu even complained about it because he did not know how to use it.
In the end, the stone he had criticized actually became very important when described by Melgor.
Melgor was probably asking about this stone in frustration because he thought it could help turn his situation around if he could obtain it.
Thus, Ren Xiaosu thought the third weapon should be very important.
But how would Melgor know what the third weapon looked like? The other party had clearly not seen Ren Xiaosu's stone before.