I enjoyed the structure of this, with alternating chapters in the present and past, wondering how the past could have possibly led to the present. I related to Lily, though she was a little too naive at times, especially regarding her family members. There was one detail that threw me off - mailing a snapshot of something the day after it happened. I tried to research whether that was possible to get a snapshot that quickly - I can't tell for sure, but it seems unlikely without having a home lab. It's always fun to read about rich people at a beach, though.