I’m not sure the genre of this book, but it is a time-spanning tale centered on a house, a murder, and various people connected by their interest in both. The nexus is a visit to said stately country manor in a summer in the 1860s. A crime takes place, a treasure goes missing. There is a ghost doing some of the narrating; presumably she was involved in said excitement.
There are also various third-person omniscient sections, primarily centered around various occupants of the house over the decades, but not always. I guess the disconnected prose is meant to pull the reader deeper into the mystery that is this Very Interesting House. Unfortunately, the various characters one meets along the way are often mere sketches, or the time spent with them is sufficiently limited that it is not clear a reader should care much about them at all.
As the book drags on, it becomes increasingly difficult to keep the different people straight. The non-linear structure succeeds in adding confusion but not in illuminating any significance new details or perspectives. Some of this is perhaps intentional, giving people slightly odd nicknames or limited backstories so that when their connections to other characters become clear it is an “exciting” surprise.
In the end, the central mysteries, such as they are, are “solved,” to the extent that a relatively banal and heavily foreshadowed conclusion is finally stated plainly to the reader. And then it is over, and the dozen different characters poof into dust with no discernible reason for existing. A disappointing journey that meandered without direction or destination.