Sister Lilith was the season's number two antagonist, pitting herself against Ava for the coveted honour of halo-bearer. In the midst of battling Ava to claim the halo for herself, she instinctively sacrificed her life to save Ava from a demon hunting them both. The demon pierced Lilith through the sternum before dragging her to hell, leaving the nuns to hold a funeral. In a twist of fate, Lilith returns from hell with no recollection of her time there, but newfound senses and demonic powers to prove it. Lilith's time in hell is literally a blank, but it could be the key to learning more about the underworld and the powers hunting down Ava's halo.