Cruelty to animals easily becomes cruelty to humans. If the area is a wildlife refuge poaching, waste dumping, and smuggling could be common problems allowed by lax rangers. More sinister is the individual who takes in homeless pets for sale to science laboratories or just tortured for 'fun'. It is possible for escaped pets to wind up in the hands of such monsters much to the tears of their owners.
I have to say this because it has been bothering me. What Lays Beyond sounds like the title to a bad porno flick, I am fairly certain the correct word is lies. Normally I wouldn't make an issue of it but ohmahgah it's right there in the title.
I think the plot hooks are where this creature shines, the fact that they leave people who have been consumed with hatred and evil as simpletons creates a moal dilemma. I love the little backstory about "the devil who just wasn't evil enough" but wish it was linked to some other posts so I knew more about this badass woman that tore his mind asunder.
There is something in particular that bugs me (haha... ha.) Im not sure how the mites work, but I think that might be better explained by why they exist. Is time itself made up of little insects? Are they parasites on time? I'm just having issues wrapping my mind around why they are what they are and why they do what they do.