Such a beautiful but extremely sad story. The bitter-sweet ending broke my heart. I know that now Harry is where he belongs, but still my heart is aching for this Severus, who is alone. Again.
Maybe this time HE will use this ritual and find the place or rather someone with whom he belongs. After all we do not know if Harry's Severus is alive, and if not, then maybe this Severus and Harry could reunite?