User blog comment:TranquilTempest/Spoiler! Or not?/@comment-4499860-20111021010928/@comment-4043223-20111022045458

What? Lucy has always had 10 fingers! She simply bent her finger to show Desmond he was not alone and she was an assassin too. And yes it was clarified that the footprints where a guide for players who where new to the game.