Daughter of Smoke and Bone by Laini Taylor

"Errand requiring immediate attention. Come.

The note was on vellum, pierced by the talons of the almost-crow that delivered it. Karou read the message. 'He never says please', she sighed, but she gathered up her things.
When Brimstone called, she always came."

In general, Karou has managed to keep her two lives in balance. On the one hand, she's a seventeen-year-old art student in Prague; on the other, errand-girl to a monstrous creature who is the closest thing she has to family. Raised half in our world, half in 'Elsewhere', she has never understood Brimstone's dark work - buying teeth from hunters and murderers - nor how she came into his keeping. She is a secret even to herself, plagued by the sensation that she isn't whole.

Now the doors to Elsewhere are closing, and Karou must choose between the safety of her human life and the dangers of a war-ravaged world that may hold the answers she has always sought. 

-- Goodreads.com description --

I have to admit, after reading so many good reviews on this one, I expected a lot. And at first, I felt that Daughter of Smoke and Bone did not live up to my expectations. I actually put it down for a couple of days. When I started reading it again, I was sucked in and read the rest in one sitting. I was blown away with the direction the book took. I highly recommend to finish this book before making your mind up about it. Since I am currently taking a classical mythology class, I adored the fact that the author made up myths. In my opinion this is one superior young adult book you have to read! It is also very refreshing that it is set for the most part in Prague. That's something that doesn't normally happen in young adult books. This book is very original and I would recommend it to anyone! 5 out of 5 stars!