One Piece chapter 1131 has established that the Treasure Tree Adam can reach up to the sky islands, which has led to a theory that one of the Supernova could be introduced during the Elbaph arc ...

Moreover, this wood was also the one used to build Oro ... With the confirmation of Treasure Tree Adam on Elbaph Island, Law and Kid might return to the series by building new ships out of the ...

So large is the Treasure Tree Adam that its canopy stretches past cloud ... he used the money to buy wood from the tree, becoming the basis for the Thousand Sunny. On Elbaf is the nation of ...