This, the third book in the Swallowcliffe Hall trilogy, is set in the time immediately before World War 2, and perfectly captures the atmosphere of general apprehension and suspicion. It centres on the granddaughter of the heroine of the first book in the trilogy, "House of Secrets", and alongside an exciting new storyline reintroduces characters from the first two books and solves some old mysteries. Altogether it is a satisfying conclusion to the trilogy, so if you haven't read the first two books, I urge you to do so before you start on this one. Together they give readers an excellent understanding of life "downstairs" from 1889 to 1939, before life changed forever in big country houses like Swallowcliffe Hall. I can thoroughly recommend all three books.