Richard's gaze sharpened as he analyzed seriously.
The secret of the White Stone Tower and the Black Spirit King was definitely a treasure, that much was certain. And the most crucial part of a "treasure" is the act of "hiding"—it needs to be concealed, hidden in a place unknown and unimaginable to others. Otherwise, what kind of treasure would it be if it was easily found?
In the folk song, it seemed to repeatedly emphasize the Captain's death, his restful slumber, and... the Captain's grave.
Speaking of... what better place is there to bury a treasure than in a grave—many times, the burial goods alone are a treasure! The secret of the White Stone Tower and the Black Spirit King had taken this opportunity to combine the two.
Maybe this guess wasn't very reliable, but there was every reason to investigate it.
So, the question was, who was the Captain in the folk song? Where was the Captain's grave? Did it still exist?
