Hey, long time no see!
...well it looks like I miiiight have overestimated how much I would be able to put into the whole "Book of Seven Secrets" thing. I think it's safe to say that I'm never going to get farther on that than I was back in 2015. If you don't mind, could you hide my shame with a bit of reorganizing? I think the most sensible thing would be to remove Book of Seven Secrets from New Mechanics and Subfolders entirely, and to place its only complete subfolder, Remnant Magic, in the Homebrew Archive.
As for the incomplete second chapter, I've saved all of the text, so you can safely delete it. If - and at this point I know better than to say "when" - I finish it, I'll re-upload it as another standalone system. Thanks so much, and sorry for wasting your time undoing what my overzealous past self wasted your time setting up.