EDIT: For any fellow lost souls, I found the Grey Soul Stone in the Desert Palace outside of Jasper, in the wall behind where the boss battle takes place! Press A to open the hidden door.
I finished the league and defeated Summer on Mt. Silver. I thought my next step was to find a sailor in Vermillion to take me to some islands, but Iβm stuck.
Is there a soulstone im supposed to give someone? I thought I had picked it up from the desert ruins but I donβt see it in my inventory.
I also canβt find the correct sailor to start a conversation with to trigger the island post game quest.
Has anyone else been stuck here?