Such a nice insight into Celaena’s past and everything she has talked about over the last three books. 
I definitely agree that it’s best to read this after Heir Of Fire because reading all of the Easter eggs from the other three was so much more satisfying than reading this as a first book.
Amazing!!

my heart breaks for Sam’s death. I didn’t cry, but my god that whole scene was heart breaking. If only they had succeeded and started their life in the southern continent. But then again, Rowan >>>
I loved the Easter egg of the piano music, how she cried playing it in TOG and we find out that Sam gave her that piece of music. Heartbreaking, again.