The first Albert Campion mystery features Campion in a rather minor role. He is one of a number of guests at a weekend house party at Black Dudley manor. As mystery aficionados might expect, there is a murder, but the murder pales next to the much larger crime that will endanger all of the house residents. At first it seems like Campion may be the murderer, but the solution is infinitely more complicated. We start to see Campion's ties to government intelligence, though we don't yet find out exactly who he is. There's running around and crazy chases. This is not the best mystery I've read, though there are certainly some entertaining characters. I think it might be better to start later in the series, as I don't think this is the book to draw readers in to Campion's world.