Thanks to my good friend Mrs. T. Schneider who gave me this book for the holiday, I had a wonderful reading experience with  Daughter of Smoke and Bone by Laini Taylor. 
Here is the review form Goodreads:   

 
"Around the world, black handprints are appearing on doorways, scorched there by winged strangers who have crept through a slit in the sky.

In a dark and dusty shop, a devil's supply of human teeth grown dangerously low.

And in the tangled lanes of Prague, a young art student is about to be caught up in a brutal otherwordly war."