A mystery. A love story. A lesson learned. Sunel Anderson has a little, invisible man who sits on her shoulder, and most of the time she does not listen to him. Until that day. There was a blinding flash... There should have been only darkness... But everything looks the same. Even though it shouldn't. She can only vaguely remember the day her school bus ran over the cliff. The day she and most of her fellow students ended up here. The twins, Mark and David Landon, were also on the bus, but David did not come here with them. David was sent across the valley to the other side, and Mark wants to go and find him.