chapter 30 the third option

Loki was utterly dumbfounded.
He never expected Martin's goal to be the national treasure, the Imperial Seal.
Buying the stone was just a smokescreen.
If Martin directly purchased this square stone, aside from Loki inflating the price, if Martin bid too high, Loki would become suspicious, thinking this stone was extraordinary.
If he had discovered it was the Imperial Seal after removing the dirt, why would Loki sell it to Martin?
"You damn scoundrel! You dare to scheme against me?"...