I'm not a Jew, but I'm writing a fantasy novel set in medieval Europe, and one of my characters is a Jew. I've got a group of people with diverse backgrounds who've come together to fight a great evil. Being a fantasy novel, this great evil includes mythological monsters like vampires.
At one point, the characters are split up and need to find places of safety. In mythology, churches often resistant to evil because they're places of worship under divine protection and are holy ground. So thinking about my plot, I though well, this character could find refuge at a Synagogue because a Synagogue is a place of worship, and thus holy ground.
Then I thought, wait is that right? Is it basically the same thing as a church? Would a Jewish reader laugh at that and think "This is ridiculous! That's not how Synagogues work!"1
In particular: is there a concept in Judaism of a Synagogue offering protection from supernatural evil creatures, or is this idea completely foreign to Judaism?
1. Of course, they might laugh at the quality of the writing and the plot, but that's a separate issue.
edit: the crux of the question, is whether the idea that a Jewish person could find refuge from supernatural evil in a synagogue simply because it is a synagogue be explicitly against Jewish teachings.