I picked this up on spec, as I haven't read anything by this author before. I'm afraid it was one of those that I started reading, then put down, and expected not to return. I did pick this up again over a week later, and continued to the end. There was something about the writing, perhaps. The atmosphere is similar to some of the old Christie novels set in English country mansions.
There is some historical basis for the premise, which I initially found far-fetched, as many of these mansions had been taken over by the government during WW2. Set in December 1953, rationing was still in place in Britain, and was only discontinued the following year. Therefore I suppose it is possible that the government still had the right to billet various departments in these mansions.
The previous owner, Lord Selchester, had disappeared many years ago and his bones were found fairly recently (I know this because I'm currently reading #1 in this series). Lady Sonia, a stuck-up, aristocratic b-b-beauty, is set to inherit the lot, but somehow, an American called Gus with a true claim has been discovered, and has arrived to take over. One is not pleased, as Lady S would never say, as she has quite the temper. Imagine what everyone thinks about Lord Gus!!
So, we come to our hero, Hugo Hawksworth, who works for secret intelligence (MI5?) under a facade of Dept. of Statistics, based in said mansion.
There are many threads in this novel. Who's been trying to kill Gus, and why? Lady S claims some art works in the mansion belong to her, and proposes to take them without informing Gus. There's a potential issue of artworks which have been looted by the Nazis, and which would have no provenance if sold. There are plenty of minor characters, some of whom are definitely sus, and may even be Marked For Death!
All the while, Gus's daughters and Hugo's younger sister interact in a teenage-y sort of way, slowly getting used to each other. It's a bit Girls Own to be honest.
Will Gus survive to be Lord of the Manor? Will Hugo figure out the mystery?
Read on to find out. I awarded this a rating of 3.7, and think that I will search out some other titles by this author, such as her "Jane Austen sequels".