Well-written, good premise, much too slowly paced
The plot and premise are very interesting, and it's clear that the author knows how to write. Except for the occasional typo, the grammar and dialogue are spot-on. I can see that the author did her research and carefully put together her historical chapters.
Read the story now
I have no doubt that many readers will be captivated by the historical themes of the novel, but for me, the pacing is much too slow. The story keeps going back and forth among events that took place in the 1500s in chapters told in the present tense then go on to 1955 to where the actual story is supposed to be taking place. In between these chapters are diary entries telling of events that happened to one man in the 1700s. Although I know the events of the 1500s and the 1700s have great bearing on the story, these in-between chapters interrupt the events of the main character who is supposed to be dealing with the present-day evils left in the wake of the horrors of the past.
I'd have enjoyed more character development and even description. I don't even really know what they look like, honestly. I think more time is spent in the past than in Fourdrinier's time period which is where the story is really supposed to be taking place. I totally understand the slow-burn approach to this kind of story, but for my taste, it is entirely TOO slow. By chapter 13, I expected more mystery, more eerie moments and more revelation/development of Fourdrinier's character. There are 3 stories going on here, not one. As I said before: I'm certain other readers will find this fascinating, but it's just not my cup of tea.