Unexpected Surprise

Exploration Stage: Crystal Mine
From: Kira Woodville
Description: What I remember is that that well was in a spacious cave. How on earth could I find it? My parents were very strict that I should never come here alone, no matter what. That stone...yes, I remember taking a break there. Look, there is a mossy cup. Please take that one!
Completed: This cup is almost completely covered in moss. Oh my, there is a note inside. "To my precious Keira"...this was written by my mother! She wrote: "I see you liked that magic well very much. I left a surprise for you in case you go there again someday!