Read this book every year - preferably around Christmas.
Yes, one of the 100% gold-starred classics.
This is the sort of Edwardian spine-chiller that Bertie Wooster liked to read before bedtime. In this long-vanished world, men are men, gals are doughty fiancees, lords are murdered, secretaries are suspect and probably pale, aviation is in its infancy, and little old ladies living near the North York Moors are . . . . well, the less said the better.
Very innocent, and entertaining.
This was an amiable and efficient moderate crime/mystery puzzler, which throws knowing glances at Trollope. Altogether good clean fun. I'll be reading more of Mr Hume, at bedtime . . .