Invisible Sam Story
Hi, I'm looking for a story I found on Fanfiction.net a few years back. It was a story that featured teenage Sam, Dean, probably about 20 or so, and John. Sam was frustrated and wandered out to a fountain. He wished he was invisible, and he became invisible. John and Dean finally figured out that Sam was in the room with them, and worked to get him visible again. It was well written and well characterized. I don't remember the author or the title, and I would love to find it again. Any ideas?