Hermione overhears something she shouldn't concerning Professor Snape and decides that maybe the House-elves aren't the only ones in need of protection.

Dumbledore doesn’t ignore the 2nd prophecy! He apprentices Harry and teaches him a rare form of magic, but draws the ire of a secret society who seek to guard this knowledge and do Harry in. Assassination attempts on multiple fronts. H/F, Yr. 4 GoF AU.