Here comes the fifth book! A great adaption of the Frog Prince. Actually, I'm not really familiar with this fairy tale story... I guest it's about a prince who was turn into a frog and asked a princess to kiss him? But I see little connection with this book... 
 Despite that I'm not familiar with the original fairy tale, this is quiet a good book. Margaretha is almost like a modern girl! She was dare to think things that perhaps it was forbidden in that period. Even she was the daughter of the duke, she didn't ack like she was a princess, commanding everything to be done, she was just as easy to be close to as normal people. I think The Princess Spy is the less connected title with the story cause the moment that Margaretha was a spy only take a few pages. The Princess Spy is actually a character made by Margaretha when she was tending an orphan. So don't be fooled by the title! She is dare, she is brave, but only a spy for few seconds!!!! The main story isn't about spying! Instead it's about great adventure between Colin and Margaretha! The plot is a bit mixed of The Fairest Beauty and The Captive Maiden, yet it also has a whole new story that will blow your mind! I believed this will be the last story about the Hagenheim family ( there'll be other book in this series, just the main character won't be in this family ) ( oh! And Colin also had connection with The Merchant's Daughter! A well unites story! Many character you seen before would appear again! ) So if you love than as much as I do, make sure to put this book in to-read list! 
 P.S I must shamefully admit that I was always finding Valten and Gisela when I read this book!!! (I love them so much!) 
 This is originally post on my blog 
 Vivian's Book Pavilion 
 http://viviansbookpavilion.blogspot.com/