In a bit of a coincidence my son and I bought this book at the same time, myself because I needed a book for my August category and he at the recommendation of a friend. We both really enjoyed the book and would read more from this author. A rather clever take on time travel with a shade to Schrodinger's cat of quantum physics fame. Once I stopped trying to figure out the math and physics I enjoyed it even more. The author does tie the ending up in neat little bow, but for myself I would have enjoyed traveling with Harry into his next fifteen lives.