"I think its more like it could be many things," he said. Its not something brutish and obvious. He's got enough awareness to notice something like that when he's paying attention. "Spirits like blue light. I'm not entirely sure why. Something about not be fully tangible. That seems like a thing that could be present in this world?"

A flicker of light at the corner of his eyes. He keeps walking. Was it a mistake...

Or was it a lure?