The shell of the Tridacna was extremely difficult to pry open, and the fishermen were helpless without the right tools.
Liszt didn't insist, as long as the Black Pearl was inside, it couldn't escape. After the giant Squid was dismembered and its rotting body was thrown into the sea, Liszt ordered that the Tridacna be carried back to the Castle to be studied slowly.
The immense Tridacna had a strange shape.
Along the way, it attracted the curious gazes of many townsfolk, and upon reaching the Castle, all the servants came out to observe, having never seen anything so peculiar.
"Teacher Marcus, what do you think is the best way to open it?"
Marcus pondered for a moment and said, "Its strength is formidable, the two shells are tightly fixed together, but since its outer shell is irregular with many crevices, we could insert a stick to pry it open. A regular wooden stick won't do; we need a thick iron bar, although, we probably don't have such an iron bar."