I don't personally tend to be very fond of the early Christie novels overall. They usually seem a bit lightweight, a bit too sparse and economical, and too full of Bright Young Things making glib jokes and arch comments all the time. There is a bit of that in 'The Sittaford Mystery', (published in 1931), but on the whole this is a very readable mystery novel. Set in a remote village on Dartmoor, a group of people are holding a seance in a snow-bound house, when a message comes through, seemingly from The Other Side, that one of their neighours, Captain Trevelyan, has been murdered. It turns out to be true, and that the murder happened at exactly the time it was revealed in the seance. When an amiable, but not terribly clever young man, James Pearson, is arrested for the murder, his resourceful fiancee sets out to catch the real culprit. I didn't guess the murderer at all in this one, and it was a genuine surprise. What I also liked was that there was no long-winded and highly complex reason as to why the murderer did it. The explanation when it comes is all too human, and very much par for the course in village life! We are led up plenty of garden paths and blind alleys in this one, but the conclusion is very satisfying.