There are many themes including that of trust. Being thrust into the limelight and the public eye means finding trustworthy people can be hard. Sometimes those closest to us, are the least trustworthy.
This links to both the wicked stepmother and deception themes. The reader is privy to all that is going on, whilst characters were in the dark. In my head I was screaming “Can’t you see what’s going on?” It certainly added to the suspense which built and built – rather like my heart rate and blood pressure!