Sean Knight lifted the rock on top and felt the copper coins around the edges, discovering some had already corroded.
Fortunately, the rust encased most of the copper coins in the middle, Although they had rusted, they clung together and were not severely corroded.
Hence, with a lift of his hand, Sean scooped up this "mountain of coins."
His Sky Eye was excellent, but it couldn't inspect every single one of these several hundred thousand coins.
There were undoubtedly treasures among them.
Apart from carrying a large chunk of about 100 kilograms, he stored the rest in a spatial realm to pry apart leisurely when he had free time.
It was just for fun.
This trip was now complete for Sean, who slowly surfaced with the massive clump of copper coins and made his way to the side of the yacht.
A team member patrolling the deck was startled by the sighting of a large green mass, which was Sean with his find.