In this story, you meet someone named Tally, a girl almost obsessed with the idea of turning 16 and becoming a 'Pretty' ~ as the blurb explains, your 16th birthday brings an operation to transform you into a person with the looks of a supermodel, therefore transforming you into a 'Pretty'.
Of course, if the story were that simple, what kind of story would that be?
A chapter or so into the story, you meet another girl named Shay, who instead, doesn't want to be Pretty.
Shay leaves, however she leaves Tally certain clues, in case Tally wants to follow. The authorities are interested as to where Shay may have gone - they tell Tally that if she cannot find Shay, she cannot become Pretty.
THIS IS WHERE THE STORY REALLY, REALLY STARTS AND GOSH, you can tell Westerfeld really thought through the clues and the timing, as the book is so cleverly written - he leaves clues himself, and it can be a mere sentence that causes you to exclaim in realization out loud, as you join the dots.
I sometimes find the endings of books are terrible - that the plot is so brilliant, and yet the end is just a bit of a let down. However, I found this book had an amazing ending, leaving me, and surely most other readers, on a thrilling cliff-hanger.
I honestly cannot wait to get my hands on the next book in the series, 'Pretties'!