A teleport crystal sounds great to Margaret. She's in no rush to move on and she might be able to tell them more about Spring Segment. Besides, this place is a great spot to relax and get some fish, but getting here might he a bit hazardous at times.

Also, Levi mentioned that he wanted to find a way to bring back a lost one. She's not sure if what she's thinking about is what he's looking for, but at the bottom of the underground lake, there's something called "Moon Ore" that is said to have otherworldly powers. There should be a few pieces there that they could harvest without need for tools.