Scary Seeds Collection 02

From publisher blurb: Dear fiends - er, friends: Are you running a game of Call of Cthulhu, Monster of the Week, Shadow of the Demon Lord, Silent Legions, or something similar? Sometimes you need a quick story for your players. Not a complete campaign, or even an adventure, but something you can modify to fit your table. You need a Scary Seed. DRP Scary Seed Collections feature at least two different ideas complete enough to build a session around, yet open enough that you can add/change details, and make it your own. Use them as-is, flesh them out, or use just the description as the base of your own adventure. This system-agnostic collection includes seeds that can be set in any location or era: The church thinks that one of their demonologists is up to something. He says he wants to destroy an evil grimoire, but it may not be that simple. A painting depicting a cult's ceremony under a full moon has been stolen. It needs to be found before the cult is resurrected. The hymnal held by a murdered church member doesn't belong to that church. In fact, it praises a dark and bloodthirsty god. Who killed the congregant, and why?