Death in the castle,: A novel,

I recently bought this book at a "library sell out" were it just caught my eye. This is a rather unusual tale. Sir Richard and Lady Mary are out of money and need to sell their castle, with great regret. The castle is about 1,000 years old and had many royal people live in it or visit it. The State has offered to turn it into a prison. John Blayne, a wealthy American comes, wishing to buy, and them move the castle to Connecticut. There is a maid that Blayne it sure is not only a maid and an old man who claims to be her granddad. However, is he? This is a very nice book and fun to read.