I enjoyed this intriguing novel. It has some exquisite moments and the plot is one of the most satisfying I have come across in recent years. The early chapters rove around a bit but worth sticking with them. I particularly liked Ruby who grows up and in interest. Much of the historical detail was from first hand sources and it shows, for example the battleship Bismarck really did turn on its pursuing cruisers and must have given them a fright. A good read.