The Moon was full that night, but that didn’t stop you from getting lost in the woods. As you fumble about the trees and the nonexistent path, you spot a set of lights up ahead. Thinking it’s somebody’s campsite; you head toward the lights.
There was a clearing; but when you get close enough, you see the lights for what they truly are, the shimmering bodies of several small young women, about nine inches tall, give or take, with large butterfly wings sprouting from their backs.
You’ve just discovered a group of fairies.