She truly was a master at mystery. There was a twist, of course, but all so simple at the end. Huh. Just makes you wonder how she thought of such twists that are so easy to see once you get to the end, but the reader passes over during the ride.
10 people are invited to an island which has just been bought by some exotic, yet unknown person, eventually known as U.N. Owen. The only way to get to the island is by boat, and there is no way to get off the island. The guests are soon dying, one by one. Who is it? I won't tell. But it was a pretty fabulous book. Agatha Christie has never let me down. Read it!