It's a book about a teenage girl who meets an anonymous boy online. They become close and she happens to move to where he lives without telling him. She moves to the beach town with her dad (I think her mom died and was a surfer). She starts working at a museum with a boy she doesn't like but things start to click and she begins to wonder if he's the mystery online boy. She had never told him that she moved to his hometown. She wanted to figure out who he was before revealing herself.