** spoiler alert ** 
 The amazing thing about the end of the book is that when Mal and Alina were being described in the "after" by the teachers, I had the exact same feeling I did when I started Shadow and Bone and Alina was looking upon the passing Grisha in their carriages. The same other-wordliness of the Grisha was present in the beginning and the end. Mal and Alina return back to their ordinary lives, but the Grisha remain these beings of power and awe. One of the most powerful things about the ending of this book was that Bardugo was able to create that beautiful feeling of awe towards the Grisha, even after we had lived through their battles with them and knew them like family. 
 "You will always be one of us."