St. Mary's Convent was a prominent convent in Ilchester, Maryland that, unbeknownst to anyone in living memory, served as the prison of Lucifer himself and was the only place where he could be released into the world from his prison in Hell. Even Lucifer’s most loyal demons were unsure of the true location of his prison, nor had they actually spoken to him in ages due to the uncertainty of his prison’s whereabouts. This caused many to lose hope that they would ever actually find him and return him to power.