C1091 Mysterious to the Sea of Sand(13)

After hearing Knight King's strange request, Tristan could not help but frown. "Your Majesty, are you joking? I've already said it before, this metal detector can only be used by those with pure human blood of the Fish King, no one else can use it. "

"The principle?" Knight King asked with a smile.

"Uh, that's the one..." Bloodline... "Tristan was speechless, he could not answer at all