Rose

The first one took place in the center of America more or less. Forbidden west in the west of course, what about the est of Aloys native homeland. There's water but could be a lake or area completely destroyed by the machines leading to perhaps an area I called the forgotten East. Makes sense the 3rd would connect all maps and she'd have to go back home. Ross's grave and house could be neglected maybe, the elder on her side from the begining could have passed through her journey back to get to the far east. But that earth locket...still big enough to hide something inside.