Originally Posted by Dagoro
What is this key law spoke of ?
Law has always been shrouded in mystery, and he seems to have a different goal than One Piece. Maybe this will be related to the ancient weapons which are a source of great power. Anyone aspiring to rule would want such a clue/piece of the puzzle.
I think it's a little early to go back to the ancient weapons, considering how distant the plot around Pluto and Poseidon was. But, if it is, it has to be a key/clue to Uranus. Although Pluto still might reappear as noted in the aftermath of Enies Lobby, I don't think it would be so early in the New World.