Inside each of us! My book (still in revision) takes a look at that idea. It also explores how people in general react to a force they don’t understand but that is truly dangerous to anyone who doesn’t understand it. In this world, no one we meet has any idea how magic works, why monsters appear, or how faith can protect them from either. Its a steep learning curve, but fortunately for that world, they have people who defy conventional wisdom and explore the weird world around them anyway!