That spirit was Gaga's Witch, a druid from somewhere in Europe who emigrated to early America, only to become the suspect of a witch hunt. After taking a knife to her captors' throats, she became one with the forest, a combination of "Old World and new," a force to be reckoned with. Why she's "DTF" at this current moment has yet to be explained by either her past or present.
But she's ready to go, and seizes the moment with Matt with the faintest, sexiest inside-a-dirt-bunker voice ever. "Chapter 4" went hard on the gore -- thank the censor powers that be that Walking Dead cleared the bar needed for American Horror Story: Roanoke to rip Cricket's intestines out with a meat hook -- but didn't skimp on this racy moment of seduction either. Cuba Gooding Jr. and Lady Gaga went at it, though it's important to note: Matt still had his pants on when snapped out of the spell by Shelby's shrieking cries for help. Will The Witch ever get some?
This could be more key than you think. As touched upon by Sarah Paulson's medium character in Murder House, then potentially inverted when Gaga coddles her demonic baby in the sixth episode of Hotel, The Witch may be looking to hook up with a mortal man in order to spawn the Antichrist -- a religious myth with close ties to Irish druid lore.