The group makes their way to the Auguste Isles, an island holding an entire ocean. While examining a mysterious substance, Rackam runs into an old friend who leads them to the capital city of Mizarea. There, the group splits up to tend to smaller tasks, while Gran and Lyria venture off to see the sights.

Gran and company visit the Lumacie Isles in order to wake up the comatose Lyria. Rosetta leads them to a giant tree nestled deep in a forest. She summons Yggdrasil, the primal beast that protects Lumacie, and explains that with her help Gran can enter Lyria's consciousness.