The Church of Elion?

Strange! I don't think the Church of Elion would allow the villagers to pray to another god! And it definitely doesn't seem like they're praying to Elion. There's nothing related to Elion around here! Let's go ask the Elionian Priest during the day and see if he knows anything about a prayer meeting held at night!

Who are they praying to at night that they wouldn't even allow visitors to come by?

Hmm? An evening prayer meeting? No, it's not something we asked them to do. ..But I guess it's their free will to do so. We cannot interfere with personal matters and tell them what or what not to do after the sun sets. We're here to cure their illness and provide aid, not monitor their every move and meddle with their business. If the villagers are acting strange, we'll take care of it. It's not something a mercenary like yourself needs to be concerned of.