This short children's tale is mildly entertaining and a quick read. Along the lines of, but not nearly as engaging as, Kipling's Jungle Books, the story is about a vengeful magician forced to become an eye. He brings spite and anger to all who must see through the eye.
As with many other Detective Muller mysteries, the story is pretty good but the mystery leaves something to be desired. In this book he does not solve a mystery at all, he merely predicts an outcome a day or two early. An OK story, since it's short, but mystery fans may prefer Christie's Poirot much more.
While an enjoyable story the mystery is somewhat wanting, the suspects predictable and the main character development is mediocre.
This is Crofts' third novel and it's excellent! Mystery, suspense, murder and a bit of Grimm romance (man meets woman for five minutes and 'must' marry her), everything a great novel needs. The plot is well developed and keeps you guessing about the real ploy of the Syndicate. Subtle hints are provided along the way to encourage an astute reader to solve the mystery themselves. This book is in two parts, basically amateur and professional detection, the prior being more drama and the latter being more methodical detective work. The whole story is well conceived and a very enjoyable read for mystery fans.