sga au

Revision of "Sharp and Sided Hail"

I'm doing the plot20 challenge, which is one story for each basic plot, and just expanded the first section of Sharp and Sided Hail to meet the challenge's guidelines. That meant making it a fair bit longer, so it's not exactly the same story now. If you don't feel like rereading the whole thing, the first section can be found by itself here.

Please let me know what you think of the changes.