Tristitia is younger than I realized; I had pictured her as a young adult. The bond between her and Vigil was nicely illustrated, and while at first I was going to say that everyone was a little too accepting of Libra's return, I had to remind myself that there was no body, so there was always hope for them. I enjoyed the race and the excitement, followed by the strange encounter.
The story of the bunker underneath the town is a great piece of world-building, and I particularly liked that the elders kept it secret and passed it down only among themselves.
Libra, though, remains a mystery, and I wonder why the elder asked about her behavior. Full disclosure, I have already read the rest of the story before writing this.