Baen has made available ‘See of Darkness;’ it’s a short story set in John Ringo’s Black Tide Rising zombie apocalypse series. It’s set in the Vatican, and… well. Let’s just say that it’s appropriate to the Halloween season. Not nihilistic, but sometimes in BTR the story can get a little strong in the ‘heavy [ordnance] used without guilt because they’re zombies’ department and not so much in the ‘horror’ aspects. This story is just a bit more, ah, medieval.
But it’s good! Just, you know, horror and all that. If you read this series… well, you’re probably there.