Some books wow me with setting, some with characters, some with magic or science. This book won me over with its creative magic system as well as interesting characters. I can't tell how many times I've caught myself dreaming of folding a paper puppy of my own... or maybe a cat! 
 What stops me from giving a good story with good characters five stars? Easy to point out here. 
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 1. The relationship between the main character and her mentor is creepy. I get it, shes an adult, but there is a reason that other people in the book frown on it and real world universities don't allow such liaisons. 
 2. The trip through the heart was jarring. Once in the journey was consistent and compelling, but the idea of this magic being so different and having such a bizarre effect... I never recovered from it. 
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