If anyone can purify a corrupted area, it would be one of Lune's Shepherds. It might not be a straightforward process, but I imagine it could be done.

[color=80BFB0][b]EDIT:[/b][/color] Since there's at least three people interested, I'll make another post detailing the rules, posting requirements, and character sheet template. I'll have it up within the next day or so.