Amelia is stepping into treasure hunting on her first official day, taking over from a mentor whose best years are behind him. Her goal is concrete: restore her struggling village. Her equipment is modest: a secondhand airship and the old shovel her mentor left her. Her strategy is to skip the well-mapped locations and go where the risk is higher and the rewards follow accordingly. Rival hunters will try to take what she finds. She will need to upgrade as she goes. Her journey begins on a small island called Grassy Grove, which almost immediately presents her with a lost puppy — and the unmistakable sense that something unusual is happening on this particular island.