Let me tell you a secret... All of Anthony Reynolds's stories are worth reading anyway. I mean, all of Riot's stories do, but I don't know, I feel like Anthony does such a great job at capturing the essence of the characters he writes about. So yeah, The Echoes Left Behind is really good.
When I heard there was going to be a short story including Kalista, there was only one thing I wanted. I wanted her to have this struggle remembering her past, and I had prepared myself to be disappointed. Joke's on me, it was there, so yeah.
This story is amazing, and it confirms only one thing to me... I'd love if Anthony could write more about Syndra as he did in The Dreaming Pool.