River Marked

I always include major spoilers (hidden), to help with my memory  issues. Read them at your peril! 

Mercy and Adam have Got married And gone away in a trailer for Their honeymoon To a campground near a river where a monster has been Tempting humans in to the river and eating them Assisted by The local 1st nation Americans, Coyote and others of his kind Mercy saves the world again. Not the best in the series, but entertaining enough.