Use one story style paragraph to describe a spider moving through a forest, do it in a scary tone, use language and adjectives that makes the spider seem larger than life while making it seem like a monster.
The gargantuan black spider stomped through the gap in the trees, eight glossy eyes like dark bottomless pits scanned the forest around it. Razor-sharp fangs protruded from its lower face as they oozed with venom. Tall, sturdy trees found themselves falling over as the beast marched down a dirt path, the grotesque furry body of the spider sucked any moonlight out of the forest as it smothered beams of light. An especially putrid miasma of death surrounded the eight-legged arachnid, a smell that would invade the body of a person and suffocate their life force.