In Skyward Sword, under the second subscreen, not the quest one but the one that has all your bugs and treasures, in the lower left there's four spaces for sidequest items. First slot is the letter from Cawlin, third slot is the Rattle, and the fourth is the Gratitude Crystals, but what's the second one? My entire first playthrough, I ran through all of Skyloft repeated times, so I'm thinking it must relate to some area on the surface, perhaps. Was just curious what's supposed to go there and how I start the quest to finding it or w/e, because I'm confused how I missed it. =\