I would just like to start by saying I have ADORED any book which Garth Nix has done before and I eagerly awaiting the release of this book. However, I found that this instalment of The Keys to the Kingdom series to be lacking in as good a storyline as all previous Garth Nix books. The plot in my opinion felt very rushed and was not as near as exciting to read as any other adventure Arthur has had. After the excellent Lady Friday, I could not wait for Arthur to meet with Superior Saturday as this would turn into an epic battle. However what I had hoped to read and what I actually read were complete opposites. The meeting between these two foes was a complete let down and I was hugely disappointed. Finally, the ending of the novel felt like Mr Nix was told to hurry up and leave the 'proper' ending out and instead leave it at a 'cliff-hanger'. As far as I am concerned by ending the book this way meant that the plot was not properly developed and that the book was essentially Arthur travelling from A to B. I would say that if your reading the series then you should read this book so you don't miss anything but do not expect anything any amazing battle with Superior Saturday or a story which is more than a stop gap read before Supreme Sunday.