Hey so I'm kinda stuck, because this game's quest log is useless. Could somebody further than me give me some advice? I'm travelling with Setsuna, Nidr and Kir and I'm about 15 hours in.
We reached the last lands to find a crevice. Two of my characters disappeared. I ran into Akash the shipwright in the frozen tundra, who said I needed to bring him a certain item to get his airship running. I can't remember what he said I needed to get, or where to find it, and he's gone now.
Go to the town where you first met spear lady. Just walk through the rest of that valley and walk north then northeast.
Spoilers, boss fight, and it's a doozy