This book got better as it went along. At first I found the time shifts quite clunky, but they got more seamless as the book progressed. The depiction of Tudor York was vivid, especially the restricted lives of women for whom a "good name" meant the difference between respectability and destitution. The story was maybe spoiled to some extent by the knowledge of Hawise's fate which the reader knew was coming but took a long time to arrive. I also would have liked some attempt to differentiate the 16th and 21st century dialogue.
I thought some of the modern "parallel" characters were a bit contrived, the watery leitmotiv a bit laboured, and I'd had enough of rotten apples well before the climax! And I still wasn't sure by the end whether Grace was a reincarnation of Hawise or possessed by her spirit. However the book did have some spooky moments, especially when Grace tried to get to the station to leave York, and in general it was a good read.