Unexpected Surprise

Exploration Stage: Crystal Mine
From: Kira Woodville
Description: I remember the well being in a spacious cave, but how do we find it now? My parents forbade me from coming down here alone. Hmm, it seems that we stopped to rest on that stone over there. Look, there is a cup overgrown with moss. Help me get it!
Completed: This cup is almost completely covered with moss. Hmm... There’s a note inside: "To our dear Kira." It’s from my parents! "We know that you really liked the Magic Well, so if you come back here sometime, there will be a surprise waiting for you." Wow!