Backfire

Something stopped Voldemort that night. But what if it wasn't Harry Potter's secret superpower, Love, or Lily's magical rune circle/blood ritual/sacrificial spell/etc? What if it was simply, as McGonagall would put it, "sheer dumb luck" - and a certain Dark Lord's tendency for gloating. Oh, well, at least he didn't monologue. I mean, who monologues in front of a baby?