Shadow and Bone by Leigh Bardugo

This book is first in a trilogy set in a world that seems to have Russian roots. Alina, an indifferent mapmaker, and Mal, an excellent tracker, have been friends ever since they grew up in the same orphanage. But in a moment of danger, Alina discovers she has great powers--a magic that no one else has--and is taken away to learn to use them. But Alina discovers that she may not have the whole story and that those teaching her have been lying to her. The magic system in this story strikes me as original, but it wasn't terribly difficult to figure out. I enjoyed this book.