The story is unusual for a number of other reasons, there is no real detective on show, the structure of the story is also unusual for a Golden Age novel with the epilogue at the start! However, this does set up the mystery nicely. The story follows in three acts and concludes with the prologue (of course).
The story maybe lacks much in the way of action though has some interesting twists and turns and is well written. An unusual story that just about doesn't outstay it's welcome. An enjoyable read though you probably wouldn't want to read many stories like this.
