"So, there was once a man called Henderson. Jeremiah Henderson. One night he goes off into the woods, looking for his dog, Arbor. He'd heard Arbor barking a few minutes ago and was getting worried."
I lean closer in to better convey the building dread. "Henderson looks for a few hours, and it gets pretty dark, until he sees a vague humanoid shape in the distance. He calls out to it saying, 'You seen a dog?' The figure turns it's head towards him. The moon reflects on it's face. Or rather, the lack of one."