A gorgeous and moving piece centered on what truly makes one oneself and how much of personality is bound up in our relationships with others. Every twist of the ending was telegraphed from the beginning, but despite that (or perhaps because of it) each piece is still extremely poignant. If this book has a draw back it is that Niffenegger still has a somewhat heavy hand with the English language. Long passages in Portuguese are written in full and then occasionally translated below (a gimmick which smacks of arrogance), thoughts are typed haphazardly in italics and some sentences simply fall flat.
Overall, an extraordinary second novel.